Saving the detroit diesel 671 with a $140 repair.

[@BusGreaseMonkey]

Warning- there are some great ASMR detroit diesel sounds in this video ;)

[@urbo42]

That's why I listen! I was walking down the street today and a new full electric Toronto Transit bus went by. It had nice aluminum wheels, but it didn't sound like a big bus!

[@sal3060]

Looking for Detroit sounds is how I stumbled onto you channel 😏

[@lateefcarrere1649]

Challenge accepted (revs up volume)!👍

[@spacecat7247]

Love those detroits. The smells and the sounds. Owned one. It was dirty and bulletproof.

[@stevenrobinson2381]

Yeah. She's clean. Got a bit of the Jimmy stumble but boy put her on the pin. Yeehaw .

[@donmoore7785]

Wow he's lucky to have you to quickly diagnose, resolve and get back on the road. Lucky this was able to be resolved without damage.

[@BusGreaseMonkey]

Fingers crossed it all works out

[@wolfman9999999]

These engines never cease to amaze me. I doubt a modern diesel could survive literally having the entire lubrication system washed down with coolant and frothed into forbidden milkshake like that and come out unscathed like this one did. Amazing old tech and a testament to building something to last.

[@georgiapatriot4575]

And you'd be in for a $20K-30K emissions system repair too.

[@MrWill73]

Those Detroit Diesels literally run forever. If he has owned it since the 70’s I wouldn’t be surprised that it has 2 million miles on the bus and the motor has been running since the 70’s. Maybe a rebuild. Wish we can build long lasting cars, trucks like that again.

[@robertprice7246]

Detroit Diesels are almost indestructible !

[@seancasey2444]

It's nice to see someone who actually takes care of his bus.

[@BusGreaseMonkey]

He bought that bus in the 1970’s

[@sarahdell4042]

@@BusGreaseMonkeyThat’s crazy!!!

[@jamiesuejeffery]

That 671 is older than me (and I am 53). When I was driving commercially, we called the 6/8/12V 92/91, “Driptoit.” But dang! Those Detroits will run forever!

[@itsmephil2255]

Im 53 as well, so same here

[@jazzandbluesculturalherita2547]

I came up on motorbikes in the '70s and the joke was how you never had to change the oil in your BSA / Triumph since you were always adding fresh oil to replace what leaked out. I read in a cycle magazine about some mechanic who worked on British bikes would split the cases during a major overhaul and polish the mating surfaces on a sheet of glass, thus eliminating the molding imperfections of the aluminum cases. Never leaked another drop after that! At least not from between the cases. I wonder if the oil leaks experienced by the Detroit Diesels could be improved by a similar process.

[@garymackey850]

That is a great sounding engine!

[@dcarr5533]

That is a good looking engine. You can tell he loves it and wipes it down! And the sound is golden!

[@BusGreaseMonkey]

He has owned that bus since the 1970’s.

[@gilbertvehicleservices]

His pride of ownership shows through with the clean engine compartment and gauges everywhere.

[@djdogstar7385]

If you need a bus engine fixed, these are the guys to bring it to, the expert mechanics, the guys that stop at nothing to fix things the right way, the people that set the mark for other diesel mechanics out there.

[@ryderphillips4464]

This guy knows his rig.

[@georgiapatriot4575]

Yep--the kind of guy that should own one of these!

[@drlarcey]

Like how we made some oil pressure

[@drlarcey]

Like how he made some oil pressure

[@drlarcey]

Like how he made some oil pressure

[@timothyobrien1850]

A lovely well maintained bus. Elegant diagnostics and repair approach. All the best

[@urbo42]

There is something so beautiful about the way these GM buses were styled. They are perfect.

[@gabrieldimarco9646]

I love the vintage buses too.

[@danielcerrato2795]

Scott is a good Samaritan & the most Jesus like person we have ever met. He is teaching & training Johnathan well and more of what this word needs. We've chosen to title this event "Miracle on the Mountain" We have a deep friendship with Scott & family as he made it possible for us to fulfill our 40 year old bucket list item to go to Alaska back in 2016. Bus Grease Mountain is an awesome place with precious residents. Thank you Scott and family.

[@VinceWaldon]

Given that the oil pump pickup must have been picking up coolant preferentially it's amazing to me that that no bearings spun. Buy a lottery ticket or two buddy!!!

[@BusGreaseMonkey]

Oil pressure is good. It was a concern

[@sarahdell4042]

I’ve ran a motorcycle 5 minutes down the road with zero oil. No bearing damage. I still don’t know how they survived it

[@ytrade469]

Scott, you & Johnathan are great honest man, you do great work & don’t take any customers for ride (you never Robb customers) God has his mercy on you guys. Watching from Calgary, Canada

[@desiatohotblack]

That is one beautiful bus. And an engine compartment that clean is a wonder to behold. It’s not just an OCD fixation or aesthetic thing either: when things are that spotless you have fifty percent better chance of seeing when things have gone wrong (or soon will). Warms my aircraft-mechanic heart.

[@paulravitsky2898]

Once again the Detroit Whisperer saves the day. Great diag and fix.

[@roadtested9009]

One the cleanest, best looking engine bays we've seen in a long time especially after the recent run of neglected buses. Love it.

[@jamesallen712]

Guy should buy a lottery ticket after that. He has a lot of knowledge and love for his own bus. A real enthusiast.

[@normmcrae1140]

Getting the oil system cleaned out sure helped the idle hunting problem, too! So glad for the couple that there's no REAL Damage - such an easy possibility when you use coolant for oil! And only $140 for the repair!!!!! He NEEDS to buy a BUNCH of Lottery tickets! Safe trip home!!!!

[@desiatohotblack]

That is one beautiful bus. And an engine compartment that clean is a wonder to behold. It’s not just an OCD fixation or aesthetic thing either: when things are that spotless you have a fifty percent better chance of seeing when things either have gone wrong, or soon will. It’s the smart move. Warms my aircraft-mechanic's heart.

[@thomasrodriguez3868]

Your experience , led to a fast diagnosis & cheap repair 🇺🇸👍😎🙏❤️💙😇💋

[@thereissomecoolstuff]

The old Detroit’s are tough. You did it exactly right. Going to be lots of busses with milky oil after the hurricane. Save the change oil.

[@kevinhamling1963]

This gentleman really knows his bus inside and out. This is probably what saved his engine. ✌️ Peace.

[@nimbly1693]

That poor ol' Detroit. I'm glad y'all are going to fix her up. My whole family were truckers, and my grandpa used to say the 318 Detroit was the best engine.

[@ATF1985]

That Detroit sounds perfect , I can smell it now ❤

[@olduhfguy]

Nice clean motor, well maintained. Those 2-stroke diesels sounds are unmistakable ! They still sound like they are trying to tear themselves apart by over-revving, but that's because they have 2x the power strokes.

[@JohnnyCarroll-wi6tx]

i never get tired of the sound of detroit.

[@13699111]

Thank you for posting this feel good video. This really makes everyone's day when you get lucky and it benefits good people.

[@jeffhenderson7462]

A really great channel, thank you ! My dad was a locomotive engineer on the CNR and then he was senior engineer on the Via rail passenger route from Ottawa to Montreal and back! That locomotive was equipped with 2 jet turbine engines,so he didn’t have to do much repairs to it ! He started way back on steam locomotives then diesel- electric. He once took me to the repair yards in Montreal ! It was amazing to stand there and watch a locomotive being moved over your head. I find diesel engines are very interesting! 😊😊😊

[@RobsNeighbor]

Thank you! Part2 I was talking to Rob about this. You are an asset to the community!

[@jazzandbluesculturalherita2547]

Super Save on the classic bus! Well-done. I want a 4-71 to put in a ton truck and customize it!

[@obsoleteprofessor2034]

My buddy did 53's in his. Had a Suburban coupled to a THM 400. He called it "Sniffy"

[@drlarcey]

I used to drive buses at the Ohio State University. We had these Grumman metros and we had these engines and 871 I believe and we have to degrease those things once a week. This engine is absolutely gorgeous.

[@jplumbob]

I took diesel mechanics in high school votech. I ended up doing a career in aircraft but always have and always will love the Detroit diesel sound.

[@BusGreaseMonkey]

Diesel aircraft engines are a thing of the future i hope ;)

[@bigtruck57h25]

They tried diesel air craft engines in WWII (germany) didn't work too well -weight.​@@BusGreaseMonkey

[@obsoleteprofessor2034]

A&P 1976 Reedley College Calif.

[@gtr1952]

I'm happy for him that it all worked out so well! That's a beautiful bus, and looks very well loved and cared for! It sounded strong going up the hill too!! Congrats!! 8) Peace --gary

[@DrewFixIt]

That is one healthy sounding Detroit!! Cheers Drew

[@hotpuppy1]

Got very lucky. When I was in school (diesel tech program), one class pulled the injectors out of a 8V71 in an old semi tractor to test and put back. They left the fuel lines loose for each injector under the valve covers. It passed enough fuel to run though. When my class drove it around the practice lot and stopped to switch drivers, we saw fuel pouring out of the front and rear mains. Oil pressure was a LITTLE low!

[@timc9893]

You might want to consider using a retaining compound such as Loctite 609, 620, or 660 when assembling items such as this.

[@BusGreaseMonkey]

I just wanted to make sure the coolant didn’t find a gouge or something to leak around it since the hole was slightly damaged. I didn’t know how good it was going to pound in but it did great.

[@timc9893]

@BusGreaseMonkey I get it. I use 609 or 620 to bond and seal wear sleeves onto pump shafts (same material used when installing a lipseal repair sleeve). They make several formulas to choose from, depending on the gap size and heat tolerance required. Some are even wicking.

[@jimwilloughby]

That is one sweet looking 4104. It's one of the best ones I've seen in a long long time.

[@robertquast9684]

Some of the different brands of stop have silica in them that really do a number on engine bearings. Dan got lucky

[@dedubh8016]

He is fortunate the engine isn't ruined. My first guess was possible oil cooler failure. Never seen a bridge pin come out. They have the right guy repairing the bus. Good looking bus Thankfully storm didn't get you.

[@BusGreaseMonkey]

Oil cooler fails the other way usually. The oil pressure is much higher than the coolant so it pumps oil into the coolant. 40psi vs 7psi

[@grabasandwich]

Can't believe nothing in the bottom end was damaged! Especially if it actually got as high as the bottom of the pistons!

[@BusGreaseMonkey]

The crankshaft was like a boat propeller churning through a swamp

[@terryreeves4308]

Diesel in the oil is a fantastic cleaner ,I learnt th8s back in mid 60s when doing my apprenticeship even great on petrol engines.

[@rudycarlson8245]

This is one of the best sounding Detroit Diesel 671 that I’ve heard!

[@sheelakarsten4679]

Straight to Vegas after that one, a great repair and a owner that realized something was wrong and shut down asap, another great video !!!

[@drlarcey]

I gotta say it again that engine is clean inside just the same. That thing is gorgeous. They are great design for their time.

[@brucelamay8977]

I had the same thing happen to me on a 454 Chevy motor in my situation I ended up having to replace the crank as the coolant ruined many of the bearing inserts on both main and rods. A lesson learned hard 😮

[@steveowen5143]

I fast forwarded to hear the startup and idle if this beautiful engine.

[@Mercmad]

No smoke on acceleration 😊 I have found that running a flood bound engine until steam comes from the crankcase vent and eventually stops, is the best indication that all of the water has dissipated . And that steam can get hot!

[@okiedoke6373]

You know I know you're not making what you deserve very few people in this world know 2-stroke Detroit peace and blessings man it's an honor to see the videos

[@marknagle-vi7og]

Love the sound of a diesel engine grew up with my dad owning a truck garage

[@mdouglaswray]

That engine looks and sounds wonderful.

[@trainnerd3029]

It’s always enjoyable, watching a master at his trade… Fun little video!

[@craigroberson8757]

When I saw all of the coolant, I had a hard time envisioning a happy ending. Those Detroit Diesel's are more forgiving than we give them credit. There is an ending to today's tail that included a blown engine. Calling your parts vendor and ask about expired product as a flush.

[@BusGreaseMonkey]

It’s a miracle so far ;)

[@BusWithUs.]

Dan dodged a bullet on that one! I wish I could run my bus that hard in the driveway, I think the neighbors would complain. :)

[@BusGreaseMonkey]

Do it a few times and you might get new better neighbors

[@deanh7190]

@@BusGreaseMonkey 🤣🤣🤣no need for a fence 🤣🤣🤣

[@louk231]

What a fantastic save. Great work Scott & Jonathan.

[@GregMosley-l7b]

Beautiful well maintained Bus!!!

[@claytoncomeaux414]

Man & Machine, a special kind of Love.

[@sheldonhall4572]

Very lucky he caught that coolant leak issue in time and had it towed in. Never would have guessed a broken valve guide would have dumped that much coolant inside the motor, absolutely crazy! I'm sure $2,140 isn't a bad price to pay to avoid having catastrophic engine failure and spending substantially more for a complete rebuild.

[@BusGreaseMonkey]

Hopefully we can educate others to avoid the tow and repair it themselves in the future

[@andysaunders3708]

That is a beautiful bus. Looks great, sounds even better.

[@rick3914]

I love the sound of this old 2stroke diesel unfortunately here in Europe wasn't usual this kind of motor ps this bus is wonderfull !

[@Marshall7302]

that engine is CLEAN! i love it. good thing it was saved.

[@majorseventh2699]

Never had that happen. 70's had many 4104's, used for charter work, great buses.

[@michelbrodeur6055]

Doing that flush reminded me of when I replaced blown head gaskets on the 2.2 and2.5 liter engines in the Chrysler K cars. They were notorious for blowing the head gasket at the #1 cylinder. I would save old oil and filters to use for flushing worked great. Nice catch on the Screamin' Jimmy.

[@deadtreebark]

You're doing amazing work as usual

[@davidbarnsley8486]

The man knows his bus and it sounds great And a nice easy fix Nothing is cheap

[@ineverhadthemoney7857]

love the sound of the 671 M diesel and I love the sound on Henry Fordm - flat head V 8 with the Hollywood Muffler back in the 1950

[@billbeck47]

Wow, what a lucky guy to have brought that bus to you.

[@dcwebb1]

Fabulous engine!..... let's hope it's runs well for a VERY long time!

[@harveynailbanger]

Boats often get a little water in the oil through condensation. The oil will get that way but will clear up as the heat from the engine basically cooks the water out of it. In this case though that stop leak would complicate things for sure. Id hope the oil filter would catch it. Good job with such a quick diagnosis...

[@stevecaton1595]

I love the ol' gm two strokes, the twelve seventy one sounds even better.

[@robertprice7246]

I Love The Sound of A Good Old Detroit Diesel !

[@ivanmccaffrey316]

Great job again scott. Give Dan my regards.

[@bigtruck57h25]

For future situations like this(coolant/water in the oil) you could use water detecting paste( most gs stations use it) to test the oil. Great repair, experience matters!!!👍👍👍

[@MikeDudley-b4b]

Good save Scott. sounds happy now.

[@davidowen888]

Engine sounds great one of my favorite busses he definitely scaved a large bill on that one phew 😮

[@bill8by5]

Really clean looking Detroit!!!!

[@albertcoburn5674]

That ticking compressor is driving me crazy!

[@BusGreaseMonkey]

Tell me about it! I’m listening for engine problems or noises and all i hear is a strong loud tick tick tick that if i didn’t know it was the air compressor i would swear something bad was happening inside the engine ;)

[@petetibbs6103]

A great outcome thanks to honest people.

[@dewaynem559]

My dad had a dump truck with a 671 man those were gutless motors sounded great but short on power😊

[@pilhoney10]

Thats a very nice bus. If it was new with all the DEF it would be $5,000.00 I like all the polished aluminum.

[@alekjuskevice]

Nice save! Lovely bus!

[@chrissmith513]

That guy's sure lucky he didn't have to another engine 😊😊😊 Thankyou

[@Hat9757]

The old Jimmy sure sounds good!

[@larryschmidt977]

in my experience as a mechanic for 40 years, if that engine ran any time at all with antifreeze in the oil it ruined the main and rod beariings and if it didn't that's the luckiest guy i've ever heard of. I've sen pleanty that had a cheap fix of the water problem but after the fix when you run the engine up to normal operatiing temperature it had almost no oil pressure because the antifreeze washed out the bearings

[@alconk7129]

Very clean engine compartment!!

[@wazza33racer]

very puzzling why GM made the the bridge shaft stud hole such that it goes all the way through. My guess, is that the engineers never envisaged a situation where the component would do so many hours that it would eventually crack the valve bridge stud. Which is a credit to these engines surviving long past even the loftiest expectations of their life span! ))

[@icenijohn2]

If it were a blind hole it would be impossible to drive an interference-fit solid pin into it with without slight risk of cracking the metal around it due to pressure buildup. Drilling a vent hole through the length of the pin could weaken it.

[@wazza33racer]

@@icenijohn2 the stud might also protrude slightly into the coolant jacket to help lock it from that end.......its an intentional design.

[@lleavell92630]

It is absolutely heartbreaking to see the damage other mechanic and tow companies do to these rigs. Perhaps you can locate a local rig to recommend for towing a rig to your location when necessary to ensure they do it properly. There is a yard full of custom coached in Nashville and I am certain they know who and how to tow these vehicles.

[@lookylook570]

That guy takes very good care of that bus, very clean…..

[@erik_dk842]

The only thing stop leak is good for is plugging up the heater core

[@frankgraczyk6491]

Far be it for me to question your repair strategy, but I couldn't help but wonder why you didn't use a Loctite bearing retaining compound to retain the stud in place or the GM cup plug adhesive to retain and seal it? You've established quite a network of supporting suppliers in Nashville. Thanks.

[@kilroybus3989]

All those people occasionally talking smack about BGM., just imagine that this his gets towed to a diesel shop somewhere and they find all that coolant in the oil., I bet all the money in Vegas the verdict would be a 25K rebuild 99% of the time., the other 1% would decline to work on the 60 year old 671 …

[@jbj27406]

Even the best of skippers puts into port from time to time. The vessel comes first.

[@AllianceB95]

The stuff this engine has been trough would be enough to easily kill a Cummins/Cat or what ever brand engine... Detroit Diesel easy repair with oilchanges and it runs asif nothing happens. One cant beat that golden status!

[@shaukat0077]

Wow what a good looking Bus❤

[@ferraritoybox]

I also put transmission fluid in 2 help clean the engine cuz it has high detergent in it

[@Charger1908]

I used to work for a marina as a mechanic and we would take boats that had sank and do what we called pickelling the engine. We would change the oil and put this extremely toxic chemical which I can’t remember the name of into the engine and run it. It smelled just like fantastic cleaner but you had to use elbow length gloves and after the engine ran and got nice and warm we’d change the oil again and no more moisture. Then of course we had to change anything electrical because even though it worked when we started it later it would rust and not work. I wish I could going out the name of that chemical we used.

[@billiardballs]

Hi - I'm relatively new to your channel. I want to thank you for buying video recording equipment having the capability to actually focus on close up shots. Great channel, you know your stuff.

[@borysandreyev9717]

Красотка. А мотор можно слушать как любимую песню - бесконечно. Молодцы, мужики.

[@elirenigar9357]

I would dump like a whole gallon of seafoam in that flush oil, let it idle for like 30 minutes. Drain it, then run a full dose of seafoam on a regular oil change and drive it for a while (about half an oil change interval) and then change it like normal and carry on from there.

[@woody95124]

After all that she runs darn good! no smoking at all....Good job ! Runs up tht hill like a horse...Go lil 6 ...