Here's The WORST PART About Toyota's BEST ENGINE!! Valve Cover Gasket Replacement TOYOTA 4.7L V8!!

[@evs8383]

As some one who is familiar with these engines…the valve cover gaskets are known to compress after initial installation and then later on requiring another torquing in order to get the gasket to make a proper seal again. That’s how it on my GS400 (1uz-fe) and my Tundra (2uz-fe). The spark plugs on the other hand sound like they were not installed properly. There’s a crush washer on most spark plugs and it seems like whoever installed them did not actually crush those sealing washers. Leaving it not torqued correctly hence them loosening up over time. Hope this helps!

[@Hellcat71782]

Yep even re-tighten them after 30 minutes is better than nothing

[@C-ME3]

I concur. Common issue with the V8 and the V6 as well. My new to me 98 4Runner with the 3.5 exhibited the same condition with loose bolts. Some forums suggested a retorque vs gasket change but I did my due diligence and changed anyway…looks exactly the same as this in the video just minus 2 cylinders. I will say though my dyslexia got the better of me and I over torqued the first valve cover. These things don’t take much at all. I believe the specs on the V6 were like 10in/lb and I went and did 10ft/lb…big difference. Didn’t cause any problems but I did momentarily panic, cuss myself and went through a few other emotions before I threw caution into the wind.

[@StevePaige]

​@@C-ME3 There was never a 3.5 in a 4runner. The 5VZ-FE is a 3.4

[@C-ME3]

@@StevePaige I’m aware. Pardon the typo.

[@StevePaige]

@@C-ME3 Consider yourself pardoned. 😁

[@Art-jw8ho]

A single vehicle subscription to alldata for a little over $100 would do you a world of good working on this truck. Every torque spec, wire color, factory procedure etc.

[@BattleshipSailorBB63]

I'll be looking into this for my old Mitsubishi. Thanks.

[@outlawjos3ywales]

Mine on my 2004 Tacoma with 87k original miles were leaking. I couldn’t believe it was just the bolts were finger tightened. I snugged all the bolts up, the leaking stopped!!!

[@brutusmaximus5380]

They should be torqued to 9 ft-lbs. It should be normal for the bolts to loosen after so many miles. That's why they feel loose. They just need to be retorqued until the next time you need to change gaskets. The valve cover is not a big deal. It's more of a beauty cover that helps keep the oil inside. It's the plenum underneath it that is more important. I'd rather the valve cover crack than the block underneath.

[@Jimmyky77]

As an owner of a '01 Tundra with the 4.7 engine, I will definitely be looking forward to future 4Runner videos Jimmy 👍🏻

[@1RoadGarage]

Awesome! Thank you! Lots more coming.

[@thechuckster6838]

bolts were just as loose as yours. The older the rubber gaskets are, the more they shrink and this is what causes the bolts to seem like they came loose when indeed the bolts have not moved. I re-torqued my bolts a year later and they really did not need it. I also used a felpro kit and asdide from the plug tube seals being blue silicone, my gaskets were also blue silicon and this is possibly why they did not need a re-torque. My engine is the 3.4 V6. You did a great job!

[@lzxray6781]

I just replaced the valve cover gasket on my 2001 Toyota Tacoma 2.7l with 258k miles because onw of the spark plug seals was allowing oil into the spark plug tube. The main gasket was flat as a pancake. I'm sure it was the original gaskets. The plug seals were brittle and broke apart getting the rest of the seals out was pretty easy.

[@reaper352c5]

i am happy to see that toyota went with metal half moons. the half moons on my 22re were rubber till i found some metal ones and swapped them out.

[@ED-ti5tc]

Trained or not, you do a great job! Love the content!

[@dephataznboi]

When I was replacing a valve cover gasket that was last documented in 2012, so 12 years, the bolts holding the valve cover were impressively loose similar to yours. Makes sense why oil loss was at an all time high for that Camry.

[@dontderockmerizz3211]

Looks like a good candidate for the Valvoline restore & protect. Should read about how it works.

[@1RoadGarage]

Sweet! Just commented to someone else that I’m about to put that in it and run it on that for a while. Looks promising.

[@dontderockmerizz3211]

@@1RoadGarage how it works is you use it for 4 straight oil changes to get the result. Otherwise if it cleans to quickly it’ll clog your filter. KZbin channel The Motor Oil Geek has a great video about it. Check it out.

[@C-ME3]

Definitely go check that video. Good content if you’re not already aware and that stuff does seem to be legit.

[@iceman45ification1]

Bolts come lose from so many heat cycles of the engine. It's not that they were left that way. It's just a typical thing that happens. You did great though. Nice work Jimmy!! 💪🔥

[@bretthibbs6083]

I had a 85 corolla with the 4 cylinder and I had to replace the valve cover gasket on back in the 90's and it was really easy.

[@BattleshipSailorBB63]

I own an old Mitsubishi and not a Toyota/Lexus, but I find the issues and component placements are close enough that I can recognize and apply what I see in your videos.

[@stevec5657]

My very 1st timing belt and water pump job was on my 4.7L. I went ahead and did the valve cover gaskets at the same time. The driver's side gasket is a real p.i.t.a. btw 😁. Oh and I think your wife is going to 100% fall in love with that vehicle.

[@1RoadGarage]

I’ve already done and filmed the driver side and it was NOT FUN! Broken bolt!! It’s all in the next video.

[@bmcculloch97]

I did this “simple” task two years ago on mine at 250k miles. Whoever owned it before me, cross threaded those bolts on the driver side down near the brake fluid reservoir. They snapped right off and I had to get it towed to a mechanic to remove the entire engine head and have those shafts drilled out, retap the threads, and put it all back together again. Good thing my timing belt and water pump were due for servicing! Plus I had the alternator, starter, and powering steering pump all replaced while things were out.

[@1RoadGarage]

Wow, that’s exactly what I’m trying to avoid! Thanks for sharing. 👍👍

[@sat_sonic]

Honda and Toyota spark plug tube seals go in the opposite of the way most people think that they go in. Unfortunately, you put them in backwards. You can confirm what I’m saying by reviewing the orientation of the original seals at time mark 9:38

[@tonyseptember7091]

You can see it even better at the 7:31 mark.

[@ml.2770]

RIP. The lip faces the oil.

[@dwilley3754]

I agree. They are in backwards. The valve cover will be easier to install this way since the lip is facing up. But it’s wrong. The lip faces the pressure side.

[@dukedixon3192]

@@dwilley3754and I would imagine that is exactly why it goes in the other way around; because of the pressure.

[@Sci-Mon1]

It doesn’t really matter. It still seals the well really tightly. It does however make it easier to remove in the future.

[@emmettturner9452]

The bolts weren’t tight because the gasket failed. Think about it: If the gasket completely disappeared then you would have to close the gap under the valve cover by tightening the bolts. While the gasket didn’t disappear, it did flatten and go hard so it wouldn’t compress under the valve cover and spring/push back. That makes the cover loose.

[@micahbeadel6899]

I love my 04 v8, same issue, always have to retighten vc bolts every couple of months because of getting loose and seeping in the back on the downhill firewall side. So when you start smelling burnt oil just tighten your bolts. Just toyotas way of making sure you always keep fresh oil in the motor

[@stevanrose7439]

Yep you Ut the plug tube seals in backwards

[@GD3Media]

I think between the gasket compression, heat cycles and vibrations, the bolts back out over time. I did the valve cover gaskets years ago on my dad's v10 Ram 2500 and it was the same thing. The bolts were not even tight.

[@DonziGT230]

Before replacing gaskets I always check for loose bolts, sometimes all you have to do is snug them up to stop the leak.

[@BradWillimont]

F all the haters up there. I found it informative and well done. Both of which I don’t have the patience to do.

[@rickmoulton6337]

have you ever tried amsoil products? i use it on the several fords i have owned over the years and have had very good results from it. they also have a engine flush that i think works well. its on the expensive side but its well worth the money for keeping the engine clean and better gas mileage.

[@1RoadGarage]

Never used it. I hear good things. I just picked up some Valvoline Restore and Protect and gonna run that for a while. Look it up. Seems like good stuff.

[@flavrdPnut]

Just did one of mine and I thought it was pretty straight forward and of moderate difficulty for DIY guy.

[@mattclinch1976]

I have a 2tr-fe. It was flawless u til it wasn't. I also live in the Canadian rust belt. 215k on it. Now the head gasket went. I'm getting it done. 6k canadian.

[@williamclick9771]

At least your able to work on your Toyota. I'm having issues with my upstream O2 sensor. It take a wideband air fuel ratio O2 sensor. All Toyota's do. I wasted money on the wrong O2 sensors they were narrowband. Next is the hook up the pattern they use is different now days. I'm worried I won't beable to get the right sensor for the Camry because of this age of the Camry. Enjoy your journey with the Toyota you now have.

[@1RoadGarage]

Sorry to hear about that. Thank you for the encouragement! 👍

[@victorbaird8220]

Great video 😊 I appreciate your work 😊

[@damienbell3155]

Dude it’s not an issue for valve cover gskt seeping. It’s normal wear and tear,,,,,,, there isn’t any vehicle that can go longer than the Toyotas. My Lexus rx350 aren’t seeping. My 04 es330 were seeping. It’s normal. They can’t last forever lol Yes valve cover bolts are like that. I just did my es330 and several were so loose that I could take off with my fingers. When I put them on it was 8 ft lbs On the 4.7l engine u should replace the grommets also. The blk river is called FIG like the fig cookies lol,,,,,, you can get off eBay or Amazon.

[@JonFox1945]

Can't wait to see you do a video on changing the fuel filter on this car

[@obs_vell439]

I have a 01 Sequioa i just purchased and the bolts were the same...only ones tightened were the 2 towards the firewall. Unfortunately both sides had 2 bolts break off. (Closest to firewall)

[@ml.2770]

Looks like a good anti corrosion feature. I'd top up the oil and leave it. 😅 FYI you put those lip seals around the spark plug tubes backwards.

[@koomo801]

If it leaks at the front driver’s side, it’ll get on the a/c compressor and create a contact problem with the compressor ground wire. A retighten after 25 years (my tundra was made in Aug of ‘99) and it stopped the leak. I’m very disappointed I had to do that with what is supposed to be such a great engine 😊

[@aaronbrown6266]

53 in-lbs is the correct torque value for the valve cover bolts.

[@Ungovernable74]

Both me and my buddies 4.7 had loose bolts on valve cover. Known issue, I guess.

[@RonRussell-sj1zf]

If they are leaking like your's it's probably a good thing as far as changing VC gaskets as it appears your lower cap screws are well lubricated and may come out without breaking. I did mine because I wanted to paint the covers as they were corroded and ugly ... broke 3 cap screws and I soaked them everyday for a week before with liquid wrench. Not fun then!

[@kevinkinsler]

Jimmy,Go Purchase 2 bottles of STP Pro Intake Valve Cleaner. Excellent Stuff!!!!

[@kevinwashington7311]

I gotta do this on my Gs400.....not looking forward to it, but I gotta change the spark plugs anyways.

[@Caf1972]

Great job, Sir! Enjoy your channel.

[@z28tcs100]

The OEM gaskets are cheaper in price than the aftermarket and better quality. Always check with Toyota parts online and pickup at a close dealership!

[@Mike-Capz83]

you should add some sea foam high mileage to the oil before you change it, to get rid of some varnish in it! drive 300 miles before changing it!

[@Tacosauce22]

Conversion from inch pounds to foot pounds is 12 to 1

[@tmph1814]

I find it very strange and wrong for him to install the oil rings for the spark tubes the way he did and referencing others that is the correct way, when they're opposite with ones original he took out and the new ones he installed🤷🏻‍♂️

[@brutusmaximus5380]

Toyota Valve cover bolts are supposed to be torqued up to 90 in-lbs. Newer valve covers are made of plastic. The engineers figured it would be better to sacrifice the valve cover and let the leaks happen instead of a catastrophic failure in the more critical areas. Just retorque to 90 in-lbs till it stops leaking. The valve cover is not a big deal. It's more of a beauty cover that helps keep the oil inside. It's the plenum underneath it that is more important. I'd rather the valve cover crack than the block underneath. Spark plugs should be between 12 to 14 ft-lbs. Mine are at 13 ft-lbs. For me 13 ft-lbs felt too much for aluminum.

[@PDieckmann]

It would be good to plan on seeing your brake booster fail around 250k miles (if it hasn’t already). Also, oil leaks from the bottom of the timing cover are probably the oil pump seal (not main seal) - expect them around 270k miles

[@Slasher4446-q3e]

I think my brake booster failed at 250k it makes a very loud squeak every time I release the brake pedal. I’ve been driving with it for the last few thousands miles.

[@johnmclean8421]

Yes the spark plugs are 13 ft lb torque and the valve covers are 7 ft lb torque for the 4.7 Toyota V8 engine

[@05Elantra98GSGang]

Idk bro I would say personally the 2JZ is their most reliable engine ever made by Toyota that were in the Lexus GS300 SC300 and Supra exc and the UZ v8 is a close second but as of now the 2.5l i4 in the current Camry is being voted in as the most reliable motor ever made worldwide so we’ll see

[@BradWillimont]

I’m about to do it myself. $1200 vs $100. 07 tundra. 400+k.

[@asadb1990]

This owner really ran the car hard. Im sure i have seen examples that are in way better condition for a little more.

[@dukedixon3192]

He wouldn’t have put the spark plug seals in backwards if he would have paid attention to the way he took them out. He did the other side before this and also put them in backwards so at least everything was done uniformly incorrect.

[@victorbaird8220]

When will you replace the spark plugs on the 4Runner? 😊

[@charlespaluha1247]

You did the entire job correctly. But instead of using felpro. You should have used mahle . Not sure if I spilled that correctly but yeah those are factory

[@lzxray6781]

I got a Beck/Arnley kit for my 2001 Toyota Tacoma 2.7l valve cover gasket with plug seals and new grommets. Made in Japan.

[@ahmadghosheh3104]

Those bolts are like 18 ftlb torque. Almost a little bit over hand tight. Over time and with compressed gasket they will loosen up a bit

[@ramonpagan695]

I took my car to a Toyota dealership to fix a small oil leak and they tight one bolt and let the other three half way in. The undercover cove of the car was missing bolt, so I took it back and told them to tight the bolt they let lose and install the undercover bolt.

[@hypocriticalharambe8274]

oh not inline 4 its not the one i think of being a 500k car and all valve cover gaskets suck on v8s and wait until you find out where the starter is on some of toyotas v8s there behind the exhaust manifold not this model year (i think it was a 2014ish) but its a lovely job that calls for 10 hours and can be done in 5 if it all goes well.

[@andyZ3500s]

My guess is that the valve cover bolts were that lose because the gaskets are that dried up and shrunk.

[@1RoadGarage]

Same here. I mentioned that in the video. 👍

[@andyZ3500s]

@@1RoadGarage Yes I caught that later on. I been subscribed to your channel for awhile and get some good ideas from you, thanks.

[@ballisticcam3277]

Just did my spark plugs 2006 tundra v8 . They were all loose

[@1RoadGarage]

Really?? Was there combustion soot on the ignition coils like mine? When’s the last time you checked/changed them?

[@balderrama25]

i did mine yesterday and 2 were loose i took them off by hand no tool

[@buckandbrandy]

Car care nut, is a you tuber who is the man when it comes to lexus toyota engine, unfortunately he said blue gasket is the wrong gasket and only original factory gasket should be used, I watched him do this job on a 3uzfe and the spark plug gasket looks totally different. I would use his knowledge on any toyota lexus project I was involved in. In short, he is the man.

[@donreinke5863]

LOL I will match my 52 years experience in automotive repair against his ANY DAY, although much of what he says does make sense, and he IS honest. I dont always think factory parts are the best. A (very) few manufacturers are superior to factory parts. Standard Motor Products (Standard plus/Blue streak) is one of them. Fel Pro gaskets were often used by the factory, I tore down a 1964 Ford 390 in the early 90s that had both Ford and Fel-Pro brand markings on the steel-shim type head gaskets.. Aisin water pumps and timing components are factory equipment in most Toyota vehicles, although Gates components ( Gates is the inventor of the automotive V-belt) is equal or superior to Aisin.

[@buckandbrandy]

I would never speak against 52 years of experience when I have only oil changes and break jobs as my experience, I respect ccn for his experience and making quality videos I can follow and learn with. Wisdom should always be listened to and considered, now I have your opinion and his to hopefully make a good decision. Thank you!

[@donreinke5863]

@@buckandbrandy Youre welcome. I started doing repairs in high school in 1972, and have done it ever since Ive worked on everything from Chevy Vegas to Jensen Interceptors.

[@THISLOVETHISHATE99]

literally installs a spark plug seal in upside down

[@itsdoncartagena6485]

He definitely installed it the right way

[@doctorwu1303]

No, they are installed correctly. I’ve seen several of these videos where guys installs them upside down. When you try to tell them they did it wrong they get butt hurt.

[@Sci-Mon1]

The only difference it makes is that it’s slightly harder to remove when it’s time to replace them but they still seal the spark plug wells tightly.

[@itsdoncartagena6485]

@@wojtek-33 the factory and the after market is not the same, have you actually done this job yourself cuz I have and if you install the aftermarket one the way youre saying it should be install, it doesnt fit/sit right so yea your wrong and he installed it right

[@lzxray6781]

I've seen other videos on the spark plug seals and they installed them the opposite way he did. Maybe that's why it was so easy to get them set. I don't know. Will it cause issues? 2001 Toyota Tacoma 2.7l 4 cyl about to replace the valve cover gasket, got the far back plug seal leaking oil into the spark plug well.

[@fortis619]

Toyota experts in the comments , like clock work 😂

[@dwilley3754]

You put the spark plug tube seals in upside down. The lip always goes towards the pressure side. That way when pressure is applied it pushes the lip seal out helping seal even tighter. Look at the before video and u will see it. It will be easier to install the valve cover this way but it’s wrong.

[@seanallen4559]

I have replaced many spark plugs tube seals on all kinds of different vehicles and they are always installed the way he did it. If you install them per the service manual he’s correct. I’ve only seen them installed the other way when someone doesn’t know what they’re doing

[@remmrott]

valve cover bolts are like 15ft-lb or less most of the time.

[@RicFlair-yn1mm]

Just a guess and I'm no mechanic but maybe the bolts just loosened over time

[@tiorange1235]

I read or seen somewhere it's said they're supposed to be not too loose but not too tight. They were loose on a sienna I had as well but I tighten them all the way down to stop the leak 🤷🏽‍♂️

[@chesterossa]

Torque specifications make a world of difference

[@robertmailhos8159]

Valve cover gasket s are only as good as the material that is used to make them

[@ChevyCitation]

Here's why YOU NEVER MESS with you factory valve cover gaskets 👍

[@justascrub8855]

And that's why I never mess with my factory oil.

[@thebeddoctor4273]

Change the timing belt and after 500 miles retorque the valve cover gaskets

[@1RoadGarage]

You may have noticed only one sticker for the timing belt but it has indeed been changed just 30k miles ago.

[@thebeddoctor4273]

​@1RoadGarage awesome. Sorry i didnt see the sticker. Thats great

[@Taher81]

Don’t forget to replace the VVT filters it’s very very important parts to replace in Toyota engines

[@omarkhan9966]

13:27😆

[@heymanoutdoors7752]

236k you should worry about the timing belt..

[@jamram9924]

Stay away from Felpro. We utilize Mahle or factory OE. All that work to only use cheap materials.

[@AgentLokVokun]

sounds like bro here is going to end up getting a welder and learning to booger weld.

[@1RoadGarage]

I went to welding school for 3 years and learned every discipline of welding. Started with Oxy acetylene then stick then mig and ended with TIG. Super fun and rewarding.

[@AgentLokVokun]

@@1RoadGarage Sounds like you have the know how and tools to weld on a nut and get this bad boy out.

[@donreinke5863]

Toyotas best engine was the 22RE.

[@safffff1000]

You look like Burt from Tremors

[@Robert-yb8is]

Stop crying, what do you expect after 200,000 miles.