Gm bus 4104 issues detroit diesel 671 missing

Loose flywheel, broken brake drum, bad generator, worn radius rod Bushings etc detroit diesel 671 We found lots of issues today on this running driving 4104. It’s off the road now until it gets some repairs done. He’ll bevback on the list in a few months for me to come back. Not to far from our new property in TN.

[@frankcadillac9151]

There were always two kinds of diesel mechanics A) Detroit and B) everything else. Your average truck wrencher wanted nothing to do with 2 cycle Detroits. The garage superintendent asked me if I ever worked on DD, said yes, he said can you start tomorrow.

[@tomwarner2468]

My brother worked on Detroits in the navy. They were in landing craft ,which he was a machinist mate on in the 70s

[@mikemullay5622]

First this time. I thought at first Scott, you meant missing as in not there! Yeah, I'm an idiot sometimes. This 4104 will certainly benefit from the in-frame you are scheduled to do on it. Looking forward to the rebuild videos.

[@BusGreaseMonkey]

Needs some love

[@crankydavesmylfs4787]

Mike Mullay Detroit 671 missing. Detroit 671 found after short search at rear of bus!

[@jerrykorman7770]

What an awesome interior. “Glow plug in a can” lol

[@BusGreaseMonkey]

I got that one from Tyler

[@inmate666]

I have an extra can of compression if you need it for that low cylinder .

[@robertquast9684]

We call it Summer wind

[@castirondude]

My neighbor said "starting fluid will make it lazy". I said no, starting fluid will make the owner lazy. It's an easy way to get the engine running without fixing the issues.

[@jerrykorman7770]

@@castirondude a lot of older equipment came with ether start from the factory.

[@ronalddavies2488]

This looks like a good job to watch,and see how you improve the engine and transmission keep them coming.👍👍🇬🇧

[@BusGreaseMonkey]

Will do

[@dhyde9207]

I had a cousin from Nashville who lost his drivers' license. Yep. You guessed it. He was a Tennessee Walker.

[@BusGreaseMonkey]

;)

[@gullreefclub]

The first time I heard that joke I was laying in my crib, 💩 my diaper and started crying for momma

[@dhyde9207]

@@gullreefclub ... So that was what, six months ago??

[@WifeBTR123]

^ Hiiyyooooo

[@djaydeved]

dayumn some one got absoloutly RETKED by words

[@jameswhittington4779]

OMG that counter top... I really like that.. And the leather work looks great. Look forward to the rebuild on this one!!

[@BusGreaseMonkey]

His wife is very good at upholstery

[@Viperman200221]

You need to pull those bottom tins off and have someone 3D scan them. Hopefully a shop somewhere could re-create them for other bus owners that want them. Love the puppers!

[@McTroyd]

Good leather working and a troupe of ferocious guard puppies make for an amazing bus! I'm glad to see this one is in such great shape.

[@BusGreaseMonkey]

Ferocious lickers

[@Omegaman1969]

I guess the starter is snagging because of the flywheel movement . Cool bus !

[@BusGreaseMonkey]

Maybe. It doesn’t sound pretty.

[@e.j.s.1357]

$5 gets you $10 that, because of the flywheel movement, the nose cone on the starter is broken. Been there, done that. Put a clutch in a 59 4104, and had the "too many helpers" syndrome. We put a clutch in, and I (who was the responsible adult) was so busy trying to save everyone broken bones and smashed fingers, that the flywheel didn't get torqued. We got it together, and the starter failed on about the 3rd crank. It was possibly the original. Didn't surprise me, but the guy at the small-town auto parts store did. He said "I'll get you a starter, but you'd better check the flywheel, I bet it's loose. See this crack? Those are typical of a badly out-of-time engine, or a loose flywheel". So the next weekend, I and a buddy pulled off the trans, and the flywheel bolts were finger tight. Thankfully, we didn't go anywhere with it, and only ran the engine for a few minutes, as it was almost dark. Live and learn, but I still have bad dreams about what could've happened had we gone for a drive.......

[@silasmarner7586]

Nice fella but a tenuous grasp 'o' the finer points of mechanicin'.. thanks for being there Scott!

[@BusGreaseMonkey]

Lots to see

[@MPWITA]

4:24 Now we know how you diagnose so accurately -- Vulcan Mind Meld!!!

[@BusGreaseMonkey]

I was trying to heal it

[@james94582]

That is a nice clean looking silver side!!!! And absolutely gorgeous Walkers and Akitas!!! Would love to have one of those beautiful pups!!

[@BusGreaseMonkey]

They are very pretty

[@tommyeugene]

I know you guys get a ton of comments, so mine will go unnoticed, but I'm in northern Minnesota, and my dad had a garbage company for forty-five years, we kept those old Detroit motors working with bailing wire and bubble gum and bowties some days. 671 , the motor of choice. Not a bus guy, but love what you do buddy

[@BusGreaseMonkey]

Thanks! Hats off to your dad.

[@michigandon]

I really dig most of that interior! I think I'd really like a 4104 or 4106 done in wall-to-wall birch plywood (think 1950s travel trailer).

[@BusGreaseMonkey]

Nice! I like that vintage look.

[@tomwarner2468]

My brother used to really like those Fairbanks morse diesel engines with the two opposed crankshafts!

[@davidmueller980]

That is a clean bus. Sounds like the lopping is saying, get Scott, get Scott, get Scott.

[@Seazer009]

I really like the inside of that Bus its so very nice.. Looks like quite a bit of work to do before this one rolls again. I guess the ole Cat came by to lend a helping paw in case a Bus Mouse came out. Good stuff Scott, thanks for the video..

[@BusGreaseMonkey]

You’re welcome

[@jennydiazvigneault5548]

That engine was not missing. I saw it right there in the back of the bus.

[@georgeveghte6459]

Miss Firing When its cold, and then still when warm? means it needs a Re-Build 10K+

[@SeenOrHeard]

I read the title like "The entire 671 engine is missing!!!" Goooot it. Nvm...

[@BusGreaseMonkey]

Not missing literally

[@williamsavage6301]

I didn't understand that title either. Thanks to Scot's reply I understand the "missing" but what or who was issued to whom?

[@carytowncat]

There's yer problem... See that space under the hood? Sposed to an engine there; engines missin.

[@ChrisSmith-nm8gb]

Like the old heads in the shop used to tell the newbies, Son, that engine isn’t missing, its right there. Now it may be misfiring. 😆

[@BusGreaseMonkey]

Something on the inside is missing, probably compression on one of the cylinders.

[@ChrisSmith-nm8gb]

Yes Scott , more than likely. But I just couldn’t resist.😏

[@christopherrasmussen8718]

Looks like Vegas and California to the west. Next. Say you got there just in time. Be looking forward to the big repair!

[@leandalynch975]

was really interesting seing towbar engine out video lately seing towing pullpoints love your videos from nz

[@ericcorse]

You got a big job there when you come back. That is a beautiful bus inside and out.

[@BusGreaseMonkey]

It won’t be too bad. It will probably take about 2 weeks.

[@richardmcavoy6413]

When the engine fired up, it reminded me of an old "hit and miss" engine. They were one cylinder with a heavy flywheel, fired once and then spun 3, 4, 5 or more times before firing again.

[@BusGreaseMonkey]

Yes it did

[@wernerdanler2742]

You and Kelly really need one of those cute puppies! Akitas are such good dogs.

[@BusGreaseMonkey]

We are done with puppies. 3 St Bernards at home are enough.

[@2flyabove]

Puppies and a great looking 4104. What more can you ask for? Awesomeness!

[@BusGreaseMonkey]

Some broken stuff too

[@BossmanEight]

So many buses. So little time!

[@mectechman1]

Beautiful bus, but seems to have a number of minor problem left unattended to that got worse over time. Will be interesting to follow, and see what more you find during the repair. Nice wall painting, could it be a try to resemble the Havasu falls?

[@BusGreaseMonkey]

Early summer I’ll be back

[@davidellison1929]

U should start working with Vintage Glass Company on manufacturing the rear windows & windshields Hell all the Glass! I’m sure they would be interested in doing it with all the vintage busses being restored & being used now! I can get u his name & Number of the Man U need to talk to! I buy all my glass from him for classic cars I fix! & I think he’s located in Tennessee! I love the Tennessee Walker Horses!!!! I’ve had 18-20 of them Throughout my life & I Love their Temperment & Personalities! My Friend has 12 of them now! He has a HUGE BLACK One his name is Lerch!!! Like off the Adams Family!

[@1982MCI]

David Ellison that would be fantastic if we had a supplier for all the glass and rubbers on these things as we restore them. I know it ain’t gonna be cheap but what is in these busses? I’d rather pay a steeper price and have new, stronger, safer glass and not let those areas be the ugly child especially after a new paint job

[@ronaldwilliams5067]

I’m in Love with these conversions!

[@Mercmad]

I see a linerset and bearing change is going to happen there. A head rebuild too. The belly pans were a popular addition to hot rods in the 50's. especailly louvered ones. There are potential horses waiting to be unleashed in that engine, i can hear them.

[@BusGreaseMonkey]

Yes, they are factory and very rare

[@siaripop7]

If you can take photos and provide measurements for those pans under the engine, there is a fantastic fabricator in the Nashville area that can reproduce them, even with modifications if needed! Looking forward to that rebuild!

[@BusGreaseMonkey]

People like them for free much better than custom made

[@derekbiggers694]

Shoshone Falls is a large waterfall in Twin Falls ID. my hometown. Also home to the perrine bridge. you had a video here once. (craters of the moon).

[@melvinschmecklebak3766]

Those belly pans were designed to keep the engine oil pan warm in the winter. Reason they don't get put back on is that the Bulkhead holders get worn down and if they arent' repaired properly, those pans will fall down and catch on the road. JUST saying

[@rodneymiddleton9624]

Makes you wonder if the alternator mounting adapter cracked when the teeth broke off the driven gear. There is no extra room for something that big. He is so lucky it didn't destroy the geartrain. I'm sure there are someone out there or BGM that can help him out with spare parts. Will a 50dn geardrive off a 8v71 work? If so I have 2 spares.

[@rodneymiddleton9624]

It may have bent the end of the alternator shaft when the pieces broke.

[@BusGreaseMonkey]

I think it has 18 teeth about 2 inches in diameter

[@emsguy486]

You're like the Subaru commercial. Dog tested..... Dog approved. Good thing you'll be on the road for awhile. Clyde might get jealous.

[@ThriftStoreHacker]

Gotta take it all apart, but its gonna be really good when done. Really neat interior.

[@macbeth2354]

This engine wants to live, I can feel it, I hope it'll get all the special treatments and love it deserves :)

[@BusGreaseMonkey]

Hopefully

[@SrRaV1981]

Beautiful Akita (the dog).

[@BusGreaseMonkey]

And a sweetheart too

[@outfitsgarage88]

Nice condition. Looking forward to the rebuild.

[@cwgreen1938]

Scott, when you get finished working on that 4104 ask the owner if he can deliver it to central Texas? That is just what I've been looking for. lol

[@BusGreaseMonkey]

Maybe make him an offer now.

[@galegregory97comcast]

Well that countertop look beautiful and the freehand art in the rear of it it was nice also

[@BusGreaseMonkey]

Coming along nicely

[@jamesshanks2614]

Did I hear you say the underside panels effect cooling? If that's correct you definitely need a complete set of them to improve your cooling system. A little bit bit of help can make a big difference.

[@HandyManDM]

You'd said in the previous video that the bus wasn't too far away from your property... was wondering how far they drove it to bring it to you? Looking like the new owner may have a few surprises ... ooof.

[@johnbereza7782]

Take that hippies, here's some greenhouse gasses for ya.

[@BusGreaseMonkey]

Smoke

[@1dollarten]

Scott , I noticed you used two wire hydraulic hose in some replacements One wire is more than adequate in medium pressure applications. Better bend radius in tight applications and less strain on components. OE applications are reusable fittings which can be field fixed . Just need the hose to make repairs or replacements

[@BusGreaseMonkey]

Is it rated for 250 deg?

[@1dollarten]

Standard operating temperature is 215 and up to 275 degrees . Most hrdraulic lines have a least a two to one saftey ratio. I'm sure there isn't any hydraulic lines on your bus that exceed those temps except the stainless braided line on the air compressor. That has a high temperature liner stainless braid For truck and bus hydraulic lines/ hoses , one wire hoses are adequate Two wire is normally used in construction equipment One wire , two wire and fabric covered hose would have the same liner suitable for hydraulic and engine oils. Hope this helps

[@stevemccoy8138]

Very Nice Bus.I would love to have one.

[@kevinhornbuckle]

Your customer is wise to put the time and money into getting the engine running right. Moving to spring brakes is a solid decision. By the way, when using ether, if you have a helper, get the engine spinning BEFORE injecting ether. Too much risk of broken rings.

[@BusGreaseMonkey]

He starts it, he says he’s going to use some either i say ok if that’s how you do it just use a little bit. This is how he always does it. He then sprays a lot and starts it.... I’m like am i still hearing it spraying???? Guess so

[@kellyjohnson9394]

Great looking bus !

[@224chingon]

Love the engine sound. Beautiful bus.

[@camelmanjd2671]

Singing Deep Purple's "Smoke On The Water."

[@rjc862003]

glad to see hes gonna give it the full overhault that motor is got more problems then a cat in a room full of rocking chairs

[@bartismoellis1052]

Hi Scott I saw your video about Tylers new bus project. Something that might help with the conversion check out Copart.com they are a nation wide salavage pool I was thinking you guys could pickup a damaged travel trailer or motorhome to use parts like holding /water tanks pumps generators A/C units some furniture etc for a very low price. Just an idea Iam looking forward to watching the conversion take shape.

[@96chevydually6.5L]

Another 4104 needin' some lovin'👍🚌🔧🐵

[@BusGreaseMonkey]

I am going to use my magic fingers on it;)

[@buildingwithtrees2258]

This one looks like it's gonna need more than finger lovin!

[@pocketchange1951]

Oh ya I am here, lets go Lenny, ride time,👍👌❤🇨🇦

[@BusGreaseMonkey]

You won

[@josephheston9238]

When I saw the needle bearings fall out, I thought we may see another V730 install.

[@jamesshanks2614]

Those weren't needle bearings, they were gear drive teeth.

[@sea97stroker]

Shoshone falls is near twin falls Idaho on the snake river

[@jimjonrs3932]

Well.....at least the blow-by is within spec's.

[@Digital-Dan]

Diesel engine missing! Don't nobody leave this room.

[@awesomeguy8392]

Are we going to come along on the tear down and rebuild?

[@djaydeved]

from what i could tell it might be wise to pull the had and drop a piston to make sure you dont have aligned rings because (for gasoline engines) if those rings align, it gets loads of blow by. you already probably know that but just wanted to mention it to everyone else, also the hunt on that engine is baaaddddd

[@richhiway]

Seem like it vibrates a lot. I geuss because it is running bad. The drive line vibrattion may have loosened up the flywheel. The loose flywheel may be holding the starter drive engaged. Good luck. Nice old bus.

[@BusGreaseMonkey]

Possibly

[@SBrown-ov9lz]

So, were 471's used in earlier GM buses? I know inline Detroit 671, also later v 92's...I guess prior to 47.

[@donaldswink6259]

I love the 4104, best looking bus I think.

[@fillg]

Looks more like Tennessee Laying Down Horses to me 😃

[@BusGreaseMonkey]

Hehe

[@kevinbarry71]

This looks like quite a project. Only fitting that in Tennessee, some teeth are missing

[@BusGreaseMonkey]

Except we are in Arkansas

[@brianfoley4519]

exucse me while i fog some skeeters!....an old gmc joke.....

[@BusGreaseMonkey]

He was a magician making my bus disappear

[@mikemullay5622]

Shoshone Falls is just out of Twin Falls Idaho.

[@KrzyKanuck81]

Little Cosby in a can never hurt anybody lol

[@MakinEndsMeet69]

Wow that bus is really straight what a beautiful ride

[@BusGreaseMonkey]

Yes it is

[@kevedamanyo]

How long can something sit, outside before injectors get stuck, very general question. My 6.5 Detroit Chevy craigslist bargain sat ten years...I just put new injector pump on it and am afraid to try to stay start....if injector stuck couldn't it hurt the injector pump? And I see twenty year cold starts on KZbin all the time, I'm hoping I get lucky?

[@thisnthat3530]

"... detroit 671 missing". Found it! It's in the engine bay!

[@greenbeenie2]

Hey from Crossville, why don't we publish a list of all the buses in Tn so we can meet and greet Thanks Lenny in Crossville 1981 MCI9

[@BusGreaseMonkey]

This ones in Arkansas

[@fastcoffee9878]

Wow. Is he selling the pups?? I have an Akita mix and had a 50/50 Akita/American Staffordshire mix...miss her tons

[@BusGreaseMonkey]

Pups will be forsale

[@Shane-Singleton]

Aww I love pups. So he's doing to have you do a full in-frame complete with a head swap? That's pretty extensive but it sounds like she needs it. I really like it. Nice 4104

[@BusGreaseMonkey]

Yes it’s an investment

[@kevinhamling1963]

G'day Kevin from Australia. The back wall of the bus with the painting on seemed to have some kind of concealed door. Any ideas. ✌ Peace guys.

[@BusGreaseMonkey]

It’s a closet

[@richardlazarski4553]

@@BusGreaseMonkey doesn't it also allow some acess to the engine bay too? I wonder how the bed was oriented too.

[@lateefcarrere1649]

Reading the comments, it's reassuring to know that I'm not the only one that thought the engine had taken an unscheduled trip - w/o the bus it powers. But, given the number of issues this bus has, that engine would've been missing for sure, as it would've shaken itself to death. But, much like a #SOS pad, Bus Grease Monkey will clean this mess up, & make it right again.

[@cjmarsh504]

10:18 The horse agrees

[@BusGreaseMonkey]

;)

[@jaquigreenlees]

Hmm, I wonder how many of the buses with no bottom plates had them fall and drag along the road for a few miles before they were taken off. When you can see people driving down the road dragging the exhaust on their cars and pickups I have no doubt the bottom plates had some going that way.

[@BusGreaseMonkey]

They are spring loaded on there. I doubt they fall off.

[@mtvjackass74]

What about an air starter?? Those are super cool!!!!

[@paulp4232]

Mack had "start-air"

[@ralphballtrip2214]

Do you have any that’s for sale that’s in good mechanical shape I’m looking to buy a Provo, but these are nice Kentucky

[@johnspecht72]

The best thing about all that space is having animals. The second best thing is just all that space.

[@MacGyver-1]

That bus needs Iceman

[@datawasteland2287]

sounds like there is a spark plug wire shorting scott :)

[@castirondude]

He forgot to pull the choke!

[@datawasteland2287]

@@castirondude WELL THAT AND THE DELAMINATION OF THE CHROMEMOLI TRIPOD RODS MAKE THE MUFFLER BEARINGS RUST AN RATTLE

[@rustymullins6623]

DataWasteland I bet its never had the spark plugs changed on it!! Lol!

[@johnbass7551]

But the engine isnt "missing" ;). This will be fun. Big project!

[@BusGreaseMonkey]

It’s only missing when it runs;)

[@dcallan812]

so is it just me thinking the engine has been out worked on and then just stufferd back into the bay without checking the torque settings. Still got a chance to fix it now.

[@christophermarsh6983]

Whew that was a healthy shot of ether!

[@BusGreaseMonkey]

Yeah, my definition of a little bit and his is clearly different

[@ethanpoole3443]

Always anesthetize the patient first!

[@hendersonjp]

Start of another great video ace . Keep them coming John in the UK

[@prevost8686]

I’ll be honest and admit that I didn’t expect that bus to look as nice as it did on the inside.

[@BusGreaseMonkey]

It was nice

[@wi11y1960]

I am curious what is behind the mural. I see a door in the mural you didnt bother to open. A closet? Also no fridge? I could see Kelly complaining about the fog bank that enveloped Lenny.

[@BusGreaseMonkey]

It’s a closet

[@cjmarsh504]

That bus looks great

[@BusGreaseMonkey]

Yes it does

[@robertbrady9597]

hello to all on here now Danville pa

[@jeffmitzel9862]

Dogs make every video better..what breed were the pups?

[@BusGreaseMonkey]

Akita

[@erich9244]

Nice video Scott, is the surging a normal part of a Two-Stroke Diesel? Might that just be the fuel lines? Gorgeous Akita Puppies they look awesome! Really nice condition and fantastic interior.

[@slateslavens]

I sooooo want a set of belly pans!

[@BusGreaseMonkey]

They are cool to see

[@ronaldbertin9455]

I never put either in a motor unless its already rolling over

[@patzke]

That waterfall is outside of the Hualapi Indian village inside the Grand Canyon.

[@BusGreaseMonkey]

Never been there but makes sense

[@patzke]

Only way in is walk or mule. It’s beautiful down there.

[@kevinoscarson2941]

That starter is not to rebuilt!! Wonder how fast the bendix is turning when its stuck to ring gear!! Perhaps its a hybird two stoke!

[@BusGreaseMonkey]

Fast

[@kevinoscarson2941]

Normally they make it about a mile before the nosecone goes flying, bet that wobbling flywheel is the culprit

[@poogan1239]

Tennessee walking horses...:(

[@andrewkiwi1]

I hope the crank is ok. having a loose flywheel doesn't do the crank or flywheel any good.

[@BusGreaseMonkey]

It usually is fine