WOW, over the years I have watched literally every video on KZbin about the “Hemi tick” and the hemi lifter/ cam issues, and every video was long and made by Hemi and Mopar experts and none of those videos were satisfying nor even had pen-pointed the issue… now here comes Mr. Powell with the very best video on the subject, effortlessly diagnosing the problem and explaining it to where a child could make sense of it…. And you’re not even a Mopar head!!! You explaining the oiling system was awesome. I’m in shock that they oil the lifter last with the oil coming *from* the pushrod. How backwards is that!?!? 👏👏👏 Bravo
@GTIFabric9 ай бұрын
Brand really doesn't matter, it's all nuts and bolts in the end
@powellmachineinc9 ай бұрын
Glad you liked it!
@thisisyourcaptainspeaking22599 ай бұрын
UTG had the same observation. I really never realized mopars feed lifters through the pushrods, despite owning a dodge with 318 long enough to tear the top end down for a burned valve. Other than that, the 318 ran good and mileage was fantastic. Drove that thing around a long time.
@timothybayliss66809 ай бұрын
@@thisisyourcaptainspeaking2259the magnums feed the lifters through a gallery. They use AMC type lifters, even if they are roller. The magnums don't have a shaft rocker, it's pedestal rockers like hydraulic 302/351.
@eriklarson91379 ай бұрын
@@GTIFabric Correct. Ever heard of engineering? That might be the difference.
@elmerfudpucker32049 ай бұрын
I retired from Chrysler after over 35 years as a tech. I have replaced untold numbers of cams and lifters in these engines, and yes, most were in fact police package cars. The oiling system is passable on everyday and traffic driving, but the police cars sit and idle on the side of the highways for hours at a time, then jump on the throttle when they start a chase. The extended idling makes for a low oil feeding to the valvetrain and the sudden load of a full throttle launch makes for a low oil presence situation on the lifters and cam. The results are obvious, and well documented all over the media. Your brief and spot on accurate description here is one of the best and easiest to comprehend examples I've seen anywhere.
@powellmachineinc9 ай бұрын
Thank you, we appreciate it!
@eldoradoboy8 ай бұрын
my hemi ram pickup has 20K miles on it.. its 2 years and a few months old.. I have spent hours and hours idling it as during covid it was my mobile office when I couldnt use my monile office bus.. and it has the dreaded Hemi tick... at 20K miles.. with lots of idling... the truck has never pulled a trailer a day in its life.. its hauled a few loads of firewood and parts for my restoration bus projects but really light use... and it ticks at startup really loud and then is a mild tick the rest of the time.. my 1978 School bus with an Inernational 392 thats never been aparthas a quieter engine...
@joshkrause2977Ай бұрын
@@eldoradoboy mine has 155K and a few months ago I pulled out 11,000 pound boat for five hours with no issues but my truck has low idling hours.
@allyslo953321 сағат бұрын
You didnt work for chrysler. Just a franchise
@peterfinnerty63847 ай бұрын
I 100% agree . Running a grove in the lower body of the lifter and locating it up in the bore to lube the roller makes sense .
@glennpannell56312 ай бұрын
Almost 40 years as a dodge Tech. This is the best, most accurate discussion on this very common issue. I never understood why dodge would allow a problem to continue that started in 2005 with the first 3rd gen hemis. It would seem to me an engineering fix is possible to fix this silly issue. Excellent diagnosis!
@powellmachineinc2 ай бұрын
Tyvm!
@HarborSite-79 ай бұрын
After watching your video and listening to your explanation it's no surprise these lifters are failing. Thank you for continuing to post some of the most informative and helpful content on this platform. Wishing you and your family good health and fortune in the New Year to come.
@powellmachineinc9 ай бұрын
Thank you sir
@wallacejeffery57867 ай бұрын
You make so much sense!!!
@powellmachineinc7 ай бұрын
I try hard!
@richardlavoie17088 ай бұрын
My new friend, you are awesome at explaining and teaching, thank you for your expertise.Ive been wrenching for a long time been to many machinists, and i would be proud to have you as my machinist. Richard.
@powellmachineinc8 ай бұрын
Welcome aboard!
@StuartBlake-iz6rf9 ай бұрын
Good report Daniel. Its mind blowing how engineers think. can't wait to see your solution in the future. love your channel.
@powellmachineinc9 ай бұрын
Thank you!
@thisisyourcaptainspeaking22599 ай бұрын
This isn't the only mopar that oils the top end this way.
@eriklarson91379 ай бұрын
I sincerely doubt this is the engineers fault. Probably management trying to cut .000003 cents per block.
@eriklarson91379 ай бұрын
@@thisisyourcaptainspeaking2259 So there are more boat anchors from Mopar out there? Who would have thunk it.
@Digimee27 ай бұрын
I have a cleveland that had a rocker fail thr beat up the lifter. I reached out to get a new set and they came with a slot from the hole down to the gallery slot. It looked like drill drift. The shop im using said they were trash. I called the maker and he said that clevelands don't get the oil they need up top and this helps. So when you mentioned the slot down to the roller.. the light went on. Love this! I feel like I'm in shop class
@jimfiles33079 ай бұрын
I had a 2004 Ram 1500 that collapsed two lifters when I started it up. Still under warranty and the dealer replaced the heads, then set the electronic governor to 1500 rpm in park. They implied that I was revving it up and racing. I’ve since sold it and bought a 2005 Ram 2500 with 5.9 Cummins. I’m happy now.
@powellmachineinc9 ай бұрын
Diesel ftw!
@bluecollarhotrods97819 ай бұрын
The local machinist that has been doing all of my work (turning cranks, etc.) didn't go into such detail, but in a nutshell told that the oiling system is trash/a poor design. Thank you for breaking it down and showing every little nuance as to why it's so bad.
@powellmachineinc9 ай бұрын
Glad to help
@2nickles6477 ай бұрын
Maybe Daniel needs to take a set of stock lifter and add an oil grove so the rollers get lubed properly. If that works Daniel. Then you will have people pounding down your door for the improved lifters. 😊❤
@richardthomas17439 ай бұрын
Thank you! I do not know much about the Hemi Engine but I did know that there is a problem with worn cam lobes. After your explanation it is very obvious why there would be problems! Thank you for sharing your knowledge and insights I appreciate it! 👍💯
@powellmachineinc9 ай бұрын
Glad to help
@mikeoakes77219 ай бұрын
Im not a Hemi guy but found this very interesting thanks for another great informative video and Keep them coming!
@powellmachineinc9 ай бұрын
Glad you enjoyed it!
@jimzivny15549 ай бұрын
I believe your thinking is correct, good explanation. I was looking at a diagram of the hemi oiling system and I had an idea. I'm older than you and remember my friends who ran fords in the 60's-70's at the dragstrip sometimes plugged the factory oil passages and ran internal or external tubes to feed the rocker shafts directly from a main passage and also to keep more oil flowing into the cam bearings and lifters. Chrysler seemed to make a simple system more complicated. Good video
@garygruber14529 ай бұрын
I remember the crazy stuff from the 60's. I used to wince when I watched someone drilling out the main jet of a 2 barrel carb.
@bobhudson66599 ай бұрын
Good stuff and good attitude. Where you are sure you say so; where you are not sure you say so. You have good knowledge but also admit you don't know it all. Well done. Keep it up. Retired mechanic/machinist in Land Down Under.
@powellmachineinc9 ай бұрын
Thank you sir!
@OBD019 ай бұрын
glad to see you back at it. 1st
@powellmachineinc9 ай бұрын
Appreciate it!
@JimZagg9 ай бұрын
Thanks Daniel, Thats just a crazy way to get oil in a lifter. I was not aware it was done that way. Todays vehicles have way more miles on them. Worn out rockers and shafts would obviously lead to lifter problems. Thanks for the video lesson !!!
@powellmachineinc9 ай бұрын
You bet
@nickcucchiara8 ай бұрын
This is exactly why I would rather have an old school 426 hemi. Have to remember that 105 degree angle in rush hour stop and go adds to the low pressure with bad geometry problems just daily driving.
@lawrencecarlson24259 ай бұрын
This assessment is right on and agrees with other machinists opinions.
@J.R.in_WV9 ай бұрын
I heard from a trusted source / friend who’s a die-hard Mopar guy that was very much “in the loop” back when the Gen.III Hemi and the 4.7 were being developed to replace the old LA / Magnum engines that the Gen-3 Hemi was supposed to be a DOHC design when they started development but eventually they modified it to a cam-in-block pushrod setup instead for packaging and cost reasons instead. He never mentioned the issues with lifter oiling that you mention here but if what he says is true then the whole “top down” valvetrain oiling design you showed us here makes a lot more sense….if that top end oil gallery and supply holes were originally designed to feed oil to cam journals and hydraulic lash adjusters up top it seems like it would work pretty well. Sending the oil through the rocker shafts then back down the push rods to the lifters is definitely an unconventional and inefficient way of doing it, and like you mentioned the placement of the “tube” for top end oiling blocking much of the splash lubrication the cam and lifter rollers would usually get just compounds the problem. It’s definitely an interesting issue to think on.
@hackfreehvac9 ай бұрын
*I remember someone mentioning that it costed Mopar more to produce the 4.7 SOHC than the Hemi.* So maybe that is why they got rid of the 4.7 I had a 4.7 in a Dakota and a Durango. I thought they were pretty good for the small size. Stock turned 6k and with a SC Tuner it redlined at 7k (it ran out of power before the 7k upper limit). Now with a Hemi Jeep I am wondering why my redline is like 5800 or whatever. Feels like my Hemi wants to rev more but instead slams into that lame limiter. I am wondering how high they can safely go (stock) if I got a tuner.
@freeidaho-videos9 ай бұрын
Great analysis. I had no idea. I ignorantly thought they worked the way almost all other engines work. Thank you for doing the research in a thoughtful and methodical way that anyone can follow. Happy New Year!
@powellmachineinc9 ай бұрын
Very welcome
@Hydrogenblonde3 ай бұрын
Well I've often heard people say "oh you shouldn't mess with the standard set up, the manufacturer knows best" Yeah it's true the manufacturer may actually know best, but knowing best and doing the best are two different things. Manufacturers do all kinds of crazy, poorly engineered things for all kinds of reasons, they don't necessarily have performance and longevity in mind. It's great to see a simple, straightforward analysis of one of these crazy things they have done.
@powellmachineinc3 ай бұрын
Ty! We appreciate it
@kennethward33549 ай бұрын
Best Learning Channel ever Thank you
@powellmachineinc9 ай бұрын
You are welcome!
@mikelawler22789 ай бұрын
Glad to see you're feeling better. I hope the rest of the family is as well.
@powellmachineinc9 ай бұрын
Yeah, just now we are getting over it, it was pretty rough...
@kevinclancy.2 ай бұрын
thanks that was an excellent run down of the system and great insights.
@powellmachineinc2 ай бұрын
Yw
@tracyamcneal95972 ай бұрын
I sure am glad I ran across Powell Machine Inc...Because all I want to hear is the TRUTH...and apparently that's what were gonna get. Thank you for taking the time to educate the novice and the so called smarty pants alike. I will be a regular viewer.
@powellmachineinc2 ай бұрын
Well said
@tracyamcneal95972 ай бұрын
@@powellmachineinc Oh...and by the way High Fives for that long hard trip to California and back.
@raywagner80169 ай бұрын
I've owned Hemi's since 2003. I no longer let them idle. Idling kills them. That and I use a liter of diesel grade oil at each oil change. I think, my personal opinion, what helps is having some EP ingredients in the oil. But yes, I agree, lack of oil splash/oil starvation is the root of the problem. Also, they eat pushrods, probably due to the startup items you mentioned.
@strokermaverick9 ай бұрын
Thank you, for sharing your insight, sir! Makes sense.
@powellmachineinc9 ай бұрын
Very welcome
@ronbo4229 ай бұрын
Hey Daniel, great info on these Hemi's, of which I own one. I've watched another Dodge Tech's KZbin channel (Reignited - Cycle and Automotive) and Skylar has mashed this topic out quite a bit. His conclusion is that it is low oil pressure, especially when idling for extended periods of time...like in service vehicles, which causes the majority of problems with lifters. He states that the 6.2 Hellcat engines are not suffering lifter failures, like the 5.7's and the 6.4's. He's narrowed the culprit to the oil pump. The 5.7 and 6.4 share the same pump, but the 6.2 Hellcat engine has a thicker rotor in its pump. He goes on to show how a Hellcat pump, or the Moroso high-volume replacement unit, provides MUCH higher pressure at idle speeds. Some of the weaker pumps are indicating only about 18psi at idle. If your theory on the oiling circuit is accurate then that would explain the lack of proper oil getting to the lifters & rollers at idle. My 5.7 idles at ~35PSI so I'm lucky to have a "good" pump and, according to my latest Blackstone Labs oil analysis, I have no metal or contaminates in my oil. I also have a 6-speed Challenger, so no MDS. Believe it or not, I change my full-synthetic Castrol oil once per year. I only put about 8000 miles on it annually. I also use Wix XP filters exclusively. My car just rolled 83000 on the odometer. You and Sky should collaborate on the subject. Being a Dodge tech, he can validate your explanation of the oiling circuit.
@ercost609 ай бұрын
6:12 "Third grade nonsense"... :) True that, Daniel! This ridiculous oil system makes hydraulic flat tappet cams look good: the oil flows from the lifter through the pushrod to the rockers.
@powellmachineinc9 ай бұрын
Exactly!
@budlanctot30609 ай бұрын
You are 100% wrong. PRESSURIZED oil is fed to the lifter bodies DIRECTLY thru the two oil galleries on each side of the camshaft. The rocker shaft & rockers & the pushrod sockets are fed oil up thru the heads and rocker pedestals pretty much like Chrysler has done since the '50's. The biggest difference is the hollow pushrods which started around '90 with the Magnum SB's.
@ercost609 ай бұрын
@@budlanctot3060 Nope! Thanks for playing but not on SBCs and Corvairs! GM got it right, oil flow just as I described.
@budlanctot30609 ай бұрын
@@ercost60 willful ignorance is no excuse for stupidity
@jeffreydurham53429 ай бұрын
@@budlanctot3060Did you watch the video?
@stevangarcia216922 күн бұрын
Thank you for sharing your video. I’m working on my first hemi, non MDS. I saw this video first and then the comp cams lifters, that I ordered, just came in. I was eager to open the box and see what they look like. Kind of disappointing. The lifters have that wide groove but there is not any resemblance of any oiling hole. Aside from the roller, The whole body is solid.
@fastst13 ай бұрын
Looking forward to see your new lifter design with full proper oiling!
@raymondlieurance51249 ай бұрын
New subscriber. Great channel bro. Always waiting for the next video now. Thank you for showing us all your hard work.
@powellmachineinc9 ай бұрын
Glad u enjoy
@pete540Z9 ай бұрын
Again, great analysis. One thing is that I've heard you say "oil gallery" many times and it tweaked my ears because of the second word. I'm 61 and rebuilt my first SBC at 16. I guess I first heard or read it as "oil galley" and then probably heard it repeated like that or read it like that numerous times. Some research proves that my instinct was wrong. It's "oil gallery," as you say. Although I pronounce "oil" quite a bit differently than you do. LoL, But that's neither here nor there. I learn quite a bit on your channel! Thanks!
@powellmachineinc9 ай бұрын
Yep, galleys are on ships!
@ellieprice3639 ай бұрын
I’ve heard it pronounced “oilyul” mostly from up north. Southerners usually pronounce it “oil” without the extra syllable. Not saying one is correct and the other wrong. Just different.
@pete13429 ай бұрын
That's one of my minor pet peeves. A galley is a kitchen on a ship, and a gallery is a passageway.
@eriklarson91379 ай бұрын
Pete - I am old too, and had the exact same reaction you did. Lol!
@dirtthunder16389 ай бұрын
29 years as a Mopar dealer Technician here and I have to say you're not correct as to how the MDS lifter is activated. Oil presser to the lifter bore activates the MDS lifters and pushes the buttons in on the sides of the lifter, deactivating the lifter. The opposite of the LS. The problem with the Hemi is three fold. First is low quality roller bearings material used by the lifter supplier. The needles will just flake apart till they are gone. Then beat the cam to death. Chrysler came out with an updated lifter because of this with larger needles. Second is with long idling of the engine and the MDS system not being activated feeding oil to the side of the lifters and cooling the roller on the lifter with excess oil . The non MDS engines do feed oil to side of the lifters all the time and still have lifter failures but far less than the MDS equipped engines. Third is the MDS lifter it self. The lifter when the MDS is activated relies on a light spring inside the lifter to keep the rest of it's valve trains lash tight. But when this spring starts weakening it can't keep the roller on the lifter in constant contact with the cam. So the roller is bouncing on the cam beating it's self to death. As far as oil splash Chrysler says the that oil splash or lack of splash has no effect on the cam and lifter life. As there is more than adequate lubrication under normal driving condition. So is idling for hours normal? Chrysler says no.( I'm not saying I totally agree with Chrysler on that statement.) Personally I think more oil would be better. I have had Hemi's in my bay with 300k miles and never been apart. They always changed the oil on time. And most of them have their foot in it all the time. And I have some that idle for hours at a time and never see very many highway miles and they are the ones that are most likely to have problems... Keep up the videos! I enjoy them.
@jefflamb53439 ай бұрын
Thanks for your VERY helpful reply. I really appreciate it! I have a 2016 Dodge Durango R/T with 67k miles on the the 5.7 liter non-MDS engine. Oil and filter changes every 5k to 7k miles with Shell Rotella 5W-20 full synthetic oil and Mobil 1 oil filters. Unfortunately, it has developed lifter noise. Given your above reply, and that my engine is non-MDS, it sounds like the only suspected culprit is the substandard roller bearings in the lifters.
@RevSearch9 ай бұрын
When did the updated lifters come out?
@whatchu_talkin_john_willis9 ай бұрын
Finally someone talks about the big stupid oil galley they cast into the center of the block that starves the cam of splash oil. I’ve contemplated an EDM hole in the bottom of the lifter body to spray oil directly on the roller.
@Akbar_Friendly_in_Cherno9 ай бұрын
I have a 2012 with just 50k miles and I'm concerned this will happen eventually. Thinking about adding the higher pressure oil pump.
@powellmachineinc9 ай бұрын
Couldn't hurt
@TomBurris-um3hf9 ай бұрын
I am dodge ram jeep shop foreman. We do alot of lifter failures in police cars and agriculture trucks. I think a lot has to do with maintenance. I have noticed very few failures on properly maintained vehicles. The farm vehicles and public service vehicles around here are rarely serviced on time. I do believe the oiling down from the pushrod is a poor design as well. I know why they did it but it still is questionable
@JoseRodriguez-wr9lq9 ай бұрын
As a new hemi owner my heart felt a sudden pain when you called it a turd lol
@eriklarson91379 ай бұрын
Get used to it.
@gregm82629 ай бұрын
How about cutting a .010”-.020” groove in the lifter bore from the bottom of the bore to the gallery like we used to do with old solid flat tappet builds? Groove the bores to drop oil onto the wheel/cam interface… I’ve still got a tool to do it by hand…
@powellmachineinc9 ай бұрын
Definitely would help
@joevaagen61709 ай бұрын
In my opinion the next progression is to start calling aftermarket lifter companies and ask for a face to face meeting. Well before phone calls I'd patent a either repair or upgrade lifter design then go to the lifter companies to start prototyping new lifter for testing and redesigning and testing and so on. Great breakdown though!!!
@ronaldrussell54819 ай бұрын
Some engineers don't like to follow the crowd, even if what the crowd uses works, they want to put their own "stamp" on it. Sometimes the "stamp" reads : failed! Enjoyed your explanation.
@Hitman-ds1ei9 ай бұрын
I still remember leak down testing all GM lifters with Kent Moore specific setup and then knowing every lifters was primed, we never had any ticking issues back then as you would pick up a faulty one before it went in, we would do this for just about every make of engine and lifter eventually as failure rate was zero with this method for lifters and cams, also the quality aspect of starting engine with no ticking noises was an expectation put on use as was starting first time with no backfires and idling correctly as it was also and expectation that if you put cam and lifters in you would time the distributor correctly too .
@baby-sharkgto49029 ай бұрын
That’s wild as hell. I didn’t even know that there was a set-up like that.
@AATopFuel9 ай бұрын
Good job you're on the right track.
@powellmachineinc9 ай бұрын
Ty
@davidpowell62715 ай бұрын
I have just purchased a 2015 Grand Cherokee with the 5.7. Only 14,000 miles on it, but all slow city driving, then unused for 5 years. I have ordered the Melling 10452HV oil pump and will use Penrite 5W-30 10 Tenths racing oil, change every 3,500 miles. I hope this will give me a long life engine.
@powellmachineinc5 ай бұрын
Good luck!
@The340king9 ай бұрын
I have over 300,000 miles on Gen 3 Hemis with zero issues. I use conventional Lucas heavy duty oil stabilizer to aid in the lifter dry start issue. I am on my third hemi. The other two were brand new, this one was used. I hope that doesn’t come back to bite me. The previous owner Idled the engine about 15% of the total run time.
@powellmachineinc9 ай бұрын
Unicorns do exist
@eriklarson91379 ай бұрын
@@powellmachineinc best possible response.
@alexgrindnshine25229 ай бұрын
Great content. I think focusing on the design differences between earlier gen 3 hemis years 04-08 Vs the 09- to current would be the first place to start. The earlier hemis did not have this problem. You explain some of the differences in this video. And all which probably lend to lower Idle oil pressure on the later hemis causing high rates of failures to cam and lifters.
@jwhmerica5048 ай бұрын
I was just wondering that myself. I’ve got a 2020 rebel with the 5.7. At hot idle my RPM sits at 525-550 at best and 31 psi oil pressure. I’m curious what the factory idle RPM was on those early models? The early engines also used a different oil pump. I left a comment up top with a thought about not being able to find any examples of a bad lifter in a 6.2 hellcat engine. The 6.2 has a higher volume oil pump, and I imagine that the RPM is probably a little higher at idle. I wonder if that increased flow managed to properly feed the lifter the required oil to keep it from going bad?
@thomaslockley9459 ай бұрын
I sure hope someone makes a better aftermarket lifter an thanks for the info on the oiling system that is a bad design compared to others that should be getting oil before the top for sure an I'm definitely interested n seeing more hemi content
@kellismith43298 ай бұрын
Haha - Dorman
@garylee25323 ай бұрын
I have a 2005 Ram 1500 4x4 with the 5.7. I purchased this truck new in January of 2006 with 8 miles on the odometer. For the first 30k miles I used conventional oil { non synthetic} and changed it every 5k miles. When I made the change to synthetic, I chose Royal Purple 5w20 for the seal properties. I am telling you folks all this to make this point. My original engine has 430k miles and I still drive it everyday. Most folks that hear this say that I just got lucky a received a "good" one. This truck still has the original starter. I do not let it idle excessively, other than 5 or so minutes in the am. My question is, could my success be coming from my choice in motor oil?
@powellmachineinc3 ай бұрын
Taking care of stuff goes a long way, my 89 Silverado had 300k when I sold it, ran great, my shop truck (dodge 2500 cummins) has 400k, runs perfect, so maintaining and common sense can go a long way, but the lifter still oils backwards and it's just not a good design
@georgemartin77178 ай бұрын
You'd think Dodge would be smarter than putting a restrictive obstruction ( bolt ) through an important oil gallery like that..among the other issues that that system has and you've talked about. Have you researched the ticking issue in the '18, and newer, Ford Mustang 5.0? Anything I've found on it point's too the HP fuel pump, however I've replaced mine and it still has it. Albeit just A LITTLE quieter.
@freeradical63909 ай бұрын
I think Uncle Tonys Garage did a vid on the Hemi cam problem, if I remember right they moved the cam up in the block and is now shrouded from getting enough splash lube. Its a good vid.
@joemilton75529 ай бұрын
No BS, pro insights, thanks!
@powellmachineinc9 ай бұрын
Glad you like them!
@duaneswanson47629 ай бұрын
Love your videos very informative! thanks and have a great new year!
@powellmachineinc9 ай бұрын
Glad you like them!
@jamesgravel77553 ай бұрын
I’ve only done a couple with a locked up roller and a lobe gone on the cam and never really had a chance to look how it works. Makes more sense now. But the ones I did do I soaked the lifters and put the pushrods in oil and cranked the engine over till oil was coming up to the rockers because it all looked funky to me and I wasn’t taking any chances. But I can tear down a camaro/corvette (LS3) to do a cam swap in about 5 hours and the first 5.7 hemi I did in 2.5hours. I was like damn I wish we did more of these.
@WVXL649 ай бұрын
My 2013 Hemi ate the cam and 4 lifters at 65,000 miles. It also had 7 bent valves. Don't know what bent the valves, there were no witness marks on any pistons. I like how it runs, when it runs.
@budlanctot30609 ай бұрын
That sounds like a cam timing and/or excessive rpm, and/or low on oil problem to me.
@eriklarson91379 ай бұрын
@@budlanctot3060 Imagine making a diagnoses without even seeing the vehicle.
@budlanctot30609 ай бұрын
@@eriklarson9137 an engine is a simple machine. I don't need to see the vehicle, it's irrelevant. There are only a few most common scenarios for those symptoms.
@kellismith43298 ай бұрын
@@budlanctot3060 Kreskin
@michaeledge89059 ай бұрын
Yeah uncle Tony's garage did a peace on this and he poured oil over a lifter at that flatter angle and it didn't oil the roller. Powerful engines. I own one but you think they would over come this problem but they didn't.
@ChicagoRob28 ай бұрын
Yes, I remember that video. I think he said the main problem was created by the raised camshaft location.
@Charlie-qb4sy9 ай бұрын
This would be a very easy test to prove out.Take a fully assembled motor, remove the intake and valve cover and pump oil thru the motor via oil filter adapter. Should be able to see exactly what is going on.
@zacharyschnepp48609 ай бұрын
I’m so glad you said that not that I was gonna buy a hemi, but that just seals the deal. I will never touch a Dodge product jeep Chrysler Dodge hemi stuff. It’s just terrible.
@maxwellbricks76329 ай бұрын
I would bet a pepperoni pizza & a cold bottle of beer that many of the oiling problems stem from the design engineer that was a first year graduate from college with a degree as a mechanical engineer. This was his first big project.
@possumpopper898 ай бұрын
The vast majority of lifter/cam failures are in vehicles that have a lot of idling time. Police cars and fleet trucks are the usual vehicles that fail.
@JT-qf4it9 ай бұрын
I think it's a industry wide lifter issue. My 2008 Ford F350 with a 6.4 liter Diesel did the same thing. One of the lifters rollers seized and started to skate over the cam lobe destroying it.
@AimlessMoto9 ай бұрын
I had a 2012 Challenger R/T with the 5.7L and Tremec 6 speed. 40k miles - Hemi tick started to become audible... dealers wanted nothing to do with it. Sold the car 6 months later. Such a shame.
@PhilG9999 ай бұрын
Interesting! I've been wrenching for 50+ years but mostly GM. My brother has a RAM 1500 (I forget what year, pre-2020) with the 5.7L Hemi in it and has a good number of miles on it. I've seen videos of the "tick" and his doesn't do it. He runs it hard too pulling a camping trailer!
@edwardrock16669 ай бұрын
Brother you do great informative videos.
@powellmachineinc9 ай бұрын
Glad you like them!
@michaelking35429 ай бұрын
Brother, that's very well explained. Now someone needs to step up and make a good fix.....great video...........😎😎
@eriklarson91379 ай бұрын
LS Swap. Also, throw a decent trans in while you are at it.
@powellmachineinc9 ай бұрын
Definitely
@danblack87746 күн бұрын
Seems as I read articles and have installed tons of these lifters in customer vehicles that Moresa and Eaton are the OEM for these lifters. Word on the hill is that the Johnson lifters are the best you can get for these. Team those with T and D roller rockers for the win.
@happygarage63109 ай бұрын
Nice dissection of the hemi oil system. Would it possible to ream out that hole around the rocker shaft and head a few thousandths to allow mor oil up through there? Or could doing that starve another component? This is all fascinating to me, I love this mechanical stuff. I have a V6 Camaro I commute in, when it starts consuming more than 1qt in 2k miles like it is now, I'd like to get into that engine and make it bit of a powerhouse, as much as a V6 can be reliably anyway.
@powellmachineinc9 ай бұрын
Ultimately the lifter is the issue, that's what needs to be fixed.
@NebukedNezzer9 ай бұрын
thanks for explaining this problem
@powellmachineinc9 ай бұрын
You are most welcome
@Oheeeoh9 ай бұрын
I've got a 2017 Ram with a 5.7 Hemi. No issues at 54k miles, but my truck does very little idling and I'm religious about timely oil changes. Thanks for your easy-to-understand presentation style. I just recently found your channel and sure appreciate sharing your knowledge with us.
@chrishensley67459 ай бұрын
Good job man.....Dam what a design.
@powellmachineinc9 ай бұрын
I'm glad you like it
@darrinwatts92299 ай бұрын
Oh but they love them hemi boat anchors.
@MorrisBreedlove-wl6tc3 ай бұрын
When the nut twisted off you stated “almost but not quite”. I thought it was pert near but not plumb.😊😅
@watermanone75679 ай бұрын
Good video, what about installing a high volume oil pump with the rebuilds also? Thanks
@powellmachineinc9 ай бұрын
Definitely would help, but it isn't addressing the problem
@larryalexander48339 ай бұрын
Thats the brains at the Dodge/ Chrysler engineer these last decades.
@powellmachineinc9 ай бұрын
Sad
@AyyLarry2 ай бұрын
The problem is the lifter trays are too loose and the sharp edges next to the roller . The loose tray allows the lifter to turn or tilt and the sharp edge catches the cam causing heat and metal slivers to get in the bearing
@brenthamilton13818 ай бұрын
I had a Charger R/T with the 5.7, a Charger Scatpack with the 6.4, and now have another Scatpack with the 6.4. They all ticked, MOST of the time, i did find that if i run in sport mode, which disables the MDS system, i don't have as loud a tick. Odd, but, i hate the MDS. Hemis... if they are not ticking, they are not running.
@patrickwendling67599 ай бұрын
Thank you for your knowledge and video's USA 🇺🇸
@johnwilburn9 ай бұрын
The 1958 Poly engines and descendant LAs oiled the rockers through the shafts and had this figured out no problem, then Magnums oiled through the lifter with no problem. I cannot understand why they then "fixed" something that wasn't broken and ruined it. It's let the LS run away with the whole market.
@DennisJones-xq9yo9 ай бұрын
It's just a bad design bed design in reading it needs to be redesigned
@kellismith43298 ай бұрын
I almost bought one a few years back, so glad I didn’t
@keithbrown19159 ай бұрын
Spot on. In agreement with UTG a Mopar guy. Would not own a generation III hemi. And I am a Mopar guy. There is no engineering anymore. Just technical grab arse.
@RoyMiller-d8y9 ай бұрын
Thanks for the informational video😮
@powellmachineinc9 ай бұрын
Your welcome!
@twinturbocoyoteftw9 ай бұрын
Maybe they get it fixed I love making money but I would like to do more than Hemi camshafts and lifters.
@westwasbestАй бұрын
Watching a video of these hemi issues on other channels indicate that changing the oil pump to a Melling unit or Hellcat unit is supposed to alleviate the issues with oil distribution. I tend to disagree as I did with the person that posted that, it seems to be a delivery problem by splashing through a narrow channel to reach these distant areas, I don't see how any higher volume oil pump would help those issues, please correct me if I'm wrong, but if we are relying on the crankshaft to splash oil up into this distant area, how would a higher volume oil pump help this situation? I don't think it would!
@powellmachineincАй бұрын
Yes, adding 10 or 20 % more volume is not a solution
@westwasbestАй бұрын
@@powellmachineinc You're the first person that has said this and agrees with me, I cannot see how adding more volume or even pressure for that matter would ever lubricate these distant areas, what would be the solution? I was talking to a mechanic friend of mine who owns a shop and he said if somebody could develop a small pump to recirculate the fluid from the oil pan to these areas they would have a gold mine of an invention, however I don't know how they could be injected properly to lubricate what needs to be done. Raising the idle is not a good solution because who wants to slam their transmission around when they're sitting at a high idle, what is the real solution for this I wonder?
@deweydecimal14469 ай бұрын
I've got a 2013 ram that I parked last year because of this exactly. Number 5 cylinder is dead. I would be glad to send you my engine as a guinea pig to try your idea on the lifters with a groove cut. Sucks, it's a great truck otherwise. By the way, it failed at 120k miles. I could bring the truck if that helps, it's not doing anything sitting in the driveway.
@davidmitchell71839 ай бұрын
The only 3rd gen hemi oiling diagram I can find on the Internet shows a separate galley feeding each side of the lifter bores. I don't know if that is correct but why would they send oil down the pushrods if the lifter bores are fed? Maybe I'm missing something as I'm not a Mopar guy.
@powellmachineinc9 ай бұрын
Yes all engine are that way, the problem is the lifter, not the oil gallery
@overbuiltautomotive12999 ай бұрын
add a bit of plumbing side oiler for lack of better term old racing tricks
@powellmachineinc9 ай бұрын
The oil is already at the lifter...the lifter has no provision to take the oil, it's a lifter issue
@joshkrause2977Ай бұрын
So add some cam oiling, I am no expert but it doesn’t seem like it would be hard with the design of the hemi block. Have it feed off oil cooler or a remote oil filter set up. Then add a high volume oil pump as opposed to high pressure.
@powellmachineincАй бұрын
That does zero to fix the problem
@donkimes21359 ай бұрын
Daniel I once was looking at new pickups I stopped at a Dodge dealer I was looking at the new Hemi had just came out I turned the key and started it up and it had a lifter ticking the salesman told me it would quit in a few seconds and that it wasn’t no big deal I got out of the truck and drove off .
@powellmachineinc9 ай бұрын
Absolutely
@SHADOWBLACKs6509 ай бұрын
Good video, probably because internal combustion engines are going away they didn't want to invest any more money into a proper lifter, I guess the Ford guys are fortunate they don't have these lifters due to the overhead cams maybe.... the ls and the Hemi are too nice engines until the cylinder deactivation nonsense damages everything.
@shepherdguy9 ай бұрын
The OEM non-MDS lifters on the 5.7 Hemi do not even have that little hole you are showing on your brand. I just recently repaired my Hemi earlier this month. I replaced the camshaft with a Mopar OEM camshaft and OEM lifters. Only the #5 intake was froze up and chewed up but I replaced all the lifters just in case. I took one each, MDS lifter and non-MDS lifter, apart to compare and see how they function. The non-MDS lifters have absolutely no oil passage inside the body of the lift to lubricate the roller. The roller can only get potential oil from the oil slipping between the lifter and lifter bore, or from oil sling from the crankshaft - that's it. It simply has the hole where the pushrod seats and pressurizes that oil through a check valve, where it pump up the lifter, but can go nowhere from there. The MDS lifter on the other hand, from what it appears to me, gets pressured somewhere between the bore and lifter body, where two pins are pushed in from oil entering through two large holes in the body side. Those pins unlock and the assembly glides into the body where a three spring combo compresses to take up lash rather than allowing the pushrod to push on the rocker and valve spring. The spring set inside the lifter has far less compression than the valve spring. Interestingly though, there is a passage in the body on the other side of those springs with a hole about 1/4" or so and oil can run down to the roller from that hole. Why the non-MDS ifters do not have a similar hole and setup is a mystery to me. I have heard people say that the failure has occurred on both MDS and non-MDS lifters, but I cannot confirm that. Every video or situation I have seen where someone posted the failure, it always seems to be a non-MDS lifter. With the 1/4" hole that oil can travel through to the roller, I'm guessing very few, if any, MDS lifters see failure.
@ronbo4229 ай бұрын
Skylar (Reignited - Cycle and Automotive - youtube channel) had a M6 Challenger in which he was upgrading with a 392 cam swap and some other parts. He found a failure on the cam and a lifter or two. The car had 120K miles on it. So, it affects the M6 cars as well, but not as bad as the MDS-equipped cars/trucks. I want to upgrade my cam in my 6-speed Challenger. It has 83K miles on it now and is 10 years old last month. My latest Blackstone Labs oil analysis found my oil to be absolutely spotless. No debris, no metals, etc. In fact, I change it once per year (Castrol full-synth and Wix filters) but only put about 8000 miles/year on the car. Blackstone said the oil sample still had over 50% of life left in it!! So, I'm expecting to find a pristine cam and lifters but will have a new set on hand...just in case! It might be smart money to just replace them while I have it apart. But, to do that, the heads must come off. I'd rather not do that, if I can avoid it. Definitely have some thinking to do. 🙂
@eriklarson91379 ай бұрын
Pssst. He literally says that in the video you are commenting on.
@shepherdguy9 ай бұрын
@@eriklarson9137 I'm commenting on the difference between the MDS lifter and the non-MDS lifter, so not sure what your point is.
@stacy60149 ай бұрын
You know there was an engineer sitting in his chair staring at the computer screen and said,"I have a better idea boss" , and its cheaper. Joe
@powellmachineinc9 ай бұрын
Lol
@krugtech9 ай бұрын
I think oil pressure in the galleys by the lifters release the MDS lifters. I think you can put non mds lifters in, put 6.1 MDS solenoid blockoff plugs in and I think the lifters will get oil through the pushrods and the galleys all the time, not just the pushrods. I wonder how 6.1 lifters are holding up?.....
@powellmachineinc9 ай бұрын
No hemi lifter has a provision to oil through the lifter
@shadetreemechanicracing229 ай бұрын
I watched a video that said excessive idling was killing the cams. Not enough oil splashing around.
@d.l.horton20936 ай бұрын
That's a bleed off hole for the oil to get more on the cam shaft I think. And the lifters get too pumped up full of oil that they push too hard on the cam and valve stems. Like a chain that is too tight. It breaks the bearing its on. The lifter pushes too hard and kills the rocker and cam and lifters too.
@powellmachineinc6 ай бұрын
No....
@d.l.horton20936 ай бұрын
@@powellmachineinc My mushroomed valve stems tell me a different story.
@peteormond28288 ай бұрын
First off, I like your videos - Thank you. I'm not a mechanic, but just wondering if a Hemi lifter was disassembled and a hole drilled into it - like the LS lifters - Would that extra lubrication help the lifter live longer, (provide extra oil to the valve train) and "cure" the tick ?
@powellmachineinc8 ай бұрын
Little more involved that just drilling a hole
@peteormond28288 ай бұрын
@@powellmachineinc I accept your point, but as I wrote, I'm not a mechanic.
@DependableAutoTruck9 ай бұрын
what i don't understand before the mds most didn't give trouble. i service a fleet of hemis from when they first started these trucks haul a lot of weight some have gone 600,000 miles no problems most have gone over 400,000 but they are road miles and run Amsoil for engine oil. the only ones that have given trouble were the ones that were in town miles.
@Alfvaldez9 ай бұрын
Dodge says the mds block off plugs increase oil flow to the lifter side bodies. Also hellcat lifters have a heavy duty bearing and bigger wheel on the lifter roller. They fit on all the years are a direct upgrade
@pushhrodd016 ай бұрын
Bro please stop spreading false info. All non mds lifters from 2015-2023were identical. Whether from a hellcat or a manual trans challenger or 2500 truck. There is no such thing as a hellcat lifter. Now In 2019 it’s been documented they updated the lifter with bigger needle bearings which is true. But yet again a hellcat lifter and a non mds lifter are identicle. Now I’ve never seen or heard on forums of hellcats getting lifter failure even tho the blocks are the same. I believe it’s due to them having a better oil pump
@Alfvaldez6 ай бұрын
@@pushhrodd01 yea that’s what I meant a hemi non mds like the manual and the hellcat they don’t charge any more for saying you need hellcat lifters so it’s easier to go to dodge or a hemi performance parts online and just order hellcat lifters instead of trying to risk saying a challenger manual and they send you the wrong one. All the hemi performance parts stores online simply just call them hellcat lifters for simplicity
@gboy1298Ай бұрын
Need to patent that and start making aftermarket ones.
@acurarl99294 ай бұрын
When rocker arm bolts are tight how does oil get through the hole at all at that point