Low on power detroit diesel 8v92TA bus can’t climb the hill

Рет қаралды 42,055

Күн бұрын

Пікірлер: 106

@jamiesuejeffery 2 ай бұрын

I am not a mechanic! I have, however, turned my share of wrenches. I am glad you did your diagnosis first, because in the first clip you gave to us, I would have immediately replaced all of the belts, then we would go from there (they have to be replaced anyway.) Great job, as always!

@BusGreaseMonkey 2 ай бұрын

Yea all that will get done before it goes back on the road. Cart before horse

@BlackPill-pu4vi 2 ай бұрын

The BGM dynomometer is the first diagnostic for every bus.

@BusGreaseMonkey 2 ай бұрын

The hill is a beast. In real life much steeper than it looks on camera

@rutledgefuller2668 2 ай бұрын

Glad to see a new video. 🎉

@BusGreaseMonkey 2 ай бұрын

A few more new videos coming this week.

@transmaster 2 ай бұрын

It just amazes me who tough these Detroit 2 stroke Diesels are. This remind me of a person in a bagger Harley electra glide he came into the shop I was at complaining about a rough running engine. Turned out he had a broken connecting rod and the wrist pin. The piston forced the rod down and the other forced it up. The Mechanic was amazed. The person with the bike was also amazed when the mechanic rebuild his engine in 2 hours. It took longer for him to pull out the engine than to rebuild it.

@BusGreaseMonkey 2 ай бұрын

Nice

@joebeach7759 2 ай бұрын

The outside of that bus is beautiful. I love the color. The inside is a blank canvas. That's what I need. Only a good drivetrain would help otherwise it's just a weird looking cabin.

@bat__bat 2 ай бұрын

Watching a 3000-pound ugly chunk of iron suddenly gurgle to life will never get old. What a hideous piece of sh*t. But it will always be amazing. And loud.

@Thuddster 2 ай бұрын

What a great 'before' picture for an air bag replacement! I'm hoping he can find a way to get those repairs done and gets some good miles on it.

@BusGreaseMonkey 2 ай бұрын

The fact that it still holds air is amazing.

@shrconstruction 2 ай бұрын

I'm a sucker for those older rivet sides prevost. sharp timeless exterior.

@BusGreaseMonkey 2 ай бұрын

Best style in my opinion

@shrconstruction 2 ай бұрын

@@BusGreaseMonkey I agree......never have to worry about the panels coming loose like the glued on ones either.

@calgarytek 2 ай бұрын

I don't own a 2 stroke diesel bus, hopefully someday I will, but I've been watching this channel for 3 years and it always motivates me to get off my butt and fix something (house, cars etc).

@DonRRicks 2 ай бұрын

Scott, y’all batten down the hatches, looks as if your part of Tennessee will get the remnants of the hurricane. I pray that the “bug” misses you and the family this time around.

@BusGreaseMonkey 2 ай бұрын

It’s going to help our drought conditions

@legend7ify 2 ай бұрын

.............G'day Scott, I hope you brought a note, you have been missing here in Australia for ages. I checked, I am still subscribed but no notifications until today. Glad to have you back! Cheers and God bless, Malcolm.

@BusGreaseMonkey 2 ай бұрын

Well you should have a long list of videos to watch because we post about 10-20 videos a month.

@legend7ify 2 ай бұрын

@@BusGreaseMonkey yes, found them!

@itsmephil2255 2 ай бұрын

Much respect for you guys not running the bull up, lots of others wouldn't do that Nice 1 Scott 👍🏼

@BusGreaseMonkey 2 ай бұрын

I try but this one is going to be a bit more involved than 1st anticipated

@itsmephil2255 2 ай бұрын

@@BusGreaseMonkey that happens, but then again it's at the best place to be looked after 🫶🏼

@Fixingeverthingwithaengine567 2 ай бұрын

It would be awesome to see J.C help you guys make a big rig multiple axle tow truck from a old bus and a cab from a peterbuilt or build a custom bus cab.

@northwoodsguy1538 2 ай бұрын

Thanks for the video. I enjoy your work. 😎

@BusGreaseMonkey 2 ай бұрын

I appreciate that!

@daryl2328 2 ай бұрын

THAT PROPANE TANK IS BANANAS

@timaz1066 2 ай бұрын

He definitely got all the miles out of that fan belt

@BusGreaseMonkey 2 ай бұрын

And the suspension airbag ;)

@who2u333 2 ай бұрын

That bus is a good looker on the exterior.

@BusGreaseMonkey 2 ай бұрын

That’s always a warning sign of problems underneath or out of sight. ;)

@jetdriver 2 ай бұрын

The interior is a mess though even accounting for the fact it’s gutted.

@billsrq1788 2 ай бұрын

A Dimond in a goats butt lol Will be a nice bus when finished. Outside looks sweet. Another butt load of money and she'll be ready for the road. Hello from Siesta Key Florida

@BusGreaseMonkey 2 ай бұрын

It will be require some investment.

@h5mind373 2 ай бұрын

Seeing the condition of that Prevost reminds me of something a car dealer friend told me: "You make your money when you buy it."

@simonrussell6884 Ай бұрын

Buses always look way more impressive than they really are.

@Bruce-i1j 2 ай бұрын

That propane tank needs anchored down or just plain removed. Old girl don’t look bad on the outside but she’s definitely rough underneath. Keep up the great work. Bruce in Wv!!!

@timf6916 2 ай бұрын

Nice, good job

@lloydrobinson7081 2 ай бұрын

keep the clips coming

@BusGreaseMonkey 2 ай бұрын

At least 3 more videos coming this week

@m35a2ww 2 ай бұрын

If that valve was closed 1/2 way, that was an issue. Also another easy thing to check on a mechanical engine is to check for full throttle at the engine.

@SuperApplefan1 2 ай бұрын

Awesome video man!!!

@davidowen888 2 ай бұрын

CHA - CHING BUS 😮 Scott 😊

@charlesroer972 2 ай бұрын

Seeing that chunk of crap , like a rubber line used for fuel , not fuel line , is coming apart after swelling almost shut . See this a lot the wrong stuff being used . AZ is a nether world though .

@donnatanner359 2 ай бұрын

I heard a well raving engine and not a lot of movement . ok it may be low on power but it didn't sound like it loaded the engine ..slipping trans?

@michelbrodeur6055 2 ай бұрын

Detective Scott at your service.

@pynetripp9323 Ай бұрын

Detroit sounded like it was screaming and the transmission was slipping. No load= No smoke.

@BusGreaseMonkey 2 ай бұрын

I can’t believe nobody commented on the propane tank yet ;)

@donh6416 2 ай бұрын

I think that's because you covered the foolishness of transporting it in the passenger area as well as it being unsecured.

@h5mind373 2 ай бұрын

About the only way to one-up the propane trick would be to route the engine exhaust into the cabin to supplement bus heat.

@zahidandrewwadhawamall4921 2 ай бұрын

I think it would be a gearbox problem or the torque converter. 😊

@hamentaschen 2 ай бұрын

"I'm gonna go get the papers, get the papers."

@BusGreaseMonkey 2 ай бұрын

2 times

@waynep343 2 ай бұрын

Do you have a spin on adapter for those sizes of fuel filter threads. Allowing you to remove the filter. Spin the adapter on. Hook up hoses to a fuel container. To check for max flow rates. If that does not exist your machine shop buddy could knock you out one quickly. My friend had a nurf ball with a hole for an air nozzle to pressurize fuel tanks to prime diesels. But that could also check for max flow.

@MaynardCarl 2 ай бұрын

I think some belts need replacing and tightening, among other things. I would refuse to drive until things were fixed

@arthurbiringer5676 2 ай бұрын

That coach is scary!

@BusGreaseMonkey 2 ай бұрын

Everywhere we looked

@Charger1908 2 ай бұрын

Sounds like the trans was slipping, the engine was revving but it wasn’t going anywhere.

@BusGreaseMonkey 2 ай бұрын

Automatic torque converter

@nspro931 2 ай бұрын

I agree, if it makes full RPM it seems like it should be OK on power

@Thuddster 2 ай бұрын

Seems reasonable to assume there's considerable wear in the transmission, given most of the other running gears' condition eh?

@avioncamper 2 ай бұрын

Another Diamond in the rough. I am a human, not a bot, lol..

@vayabroder729 2 ай бұрын

Poor thing has been neglected for many years.

@BusGreaseMonkey 2 ай бұрын

I think it’s about to get a second life of good maintenance and upkeep

@rhett5914 2 ай бұрын

You can almost see the air inside….. priceless Lol

@davidroberts6594 2 ай бұрын

Wouldn't seem its a power issue as much as a transmission issue, it running full bore trying to get up that hill but not moving- if the power was low it would have bogged down and tried to stall. Transmission and so many other problems

@chrisstoddard1144 2 ай бұрын

I wholeheartedly agree. If the engine speed is up against the governor, it's not the engine that's holding things back--it's the drivetrain.

@darrelldroke7188 2 ай бұрын

i thank the transmission is slipping.

@BusGreaseMonkey 2 ай бұрын

When i added my propane boost to my fish bowl bus with the allison automatic the torque converter will then start to accelerate the bus when it’s about to start going backwards up a steep hill.

@yeller95vette 2 ай бұрын

Those those rusty pitted pulleys are gonna keep eating the belts right off, they are as bad as I’ve seen on an engine,

@BusGreaseMonkey 2 ай бұрын

They usually self polish up a bit.

@18robsmith 2 ай бұрын

@@BusGreaseMonkey And if they don't a a quick run round with a wire brush will get things started (provided what the pulley is bolted to will spin).

@PaulWannenburg 2 ай бұрын

Great another BGM video

@BruceBergman 2 ай бұрын

The magic Bands might be good for Disneyland or WDW if they're paid up on Annual Passes... 😊 4:27

@davelowe1977 2 ай бұрын

Looks like transmission problems to me.

@donpampel3332 2 ай бұрын

I thought it would have dropped RPM when it stalled out. Is the torque converter not pumping ? Just wondering

@BusGreaseMonkey 2 ай бұрын

It should have spooled up much faster and carried much more momentum into the hill. I knew one second after i mashed on the pedal what was about to happen.

@BruceBergman 2 ай бұрын

Checklist: Airbags, shock absorbers, brake leaks, Turbocharger center section. 15:06

@pryncemuneabdlmiddle 2 ай бұрын

Sounds like an air leak in the fuel line

@BusGreaseMonkey 2 ай бұрын

That is a possibility i mentioned that it’s sucking in air.

@PaulWannenburg 2 ай бұрын

Lenny has a nicer looking air pressure gauge

@MrWoodshoes 2 ай бұрын

Never heard the engine lug down, are you sure the torque converter or trans isn't slipping ?

@BusGreaseMonkey 2 ай бұрын

The turbo boost is way lower than it should be by like 50%. Yes the torque converter will let it keep up pretty high rpm but not go anymore. A bigger run at it let it up shift into higher gear then lug back down to torque converter.

@tomflanagan8924 2 ай бұрын

That is a tired engine and a big steep hill.

@jerrybohringer4894 Ай бұрын

The fuel lines need to be replaced.

@jerrybohringer4894 Ай бұрын

Then you check it for leaks boost.

@MrCalorchard 2 ай бұрын

Some AI BS going on in the comments. 😅

@BusGreaseMonkey 2 ай бұрын

They are unrelenting

@ricksmith4736 2 ай бұрын

@@BusGreaseMonkey Big Brother and SkyNet are here

@grabasandwich 2 ай бұрын

5 comments so far. All bots 🙄 PS. I'm not a bot! Also, a 92 that can't climb a hill?! Wonder how much HP it's down on? Edit: 6:18 answered my question lol

@BusGreaseMonkey 2 ай бұрын

It’s a constant battle removing and blocking the bots

@erikkovacs3097 2 ай бұрын

Wrong boost gauge. It's a combo vacuum/boost gauge for gasoline engines. Diesel's don't see vacuum... at least they shouldn't.

@andrewdonohue1853 Ай бұрын

i actually wasnt aware of that. i am a truck driver and i own a diesel sub compact. i always thought they produced vacuum, it's higher compression no spark plugs and a different fuel but i assumed the vacuum was created by pistons moving up and down. they are still "air pumps" arent they?

@erikkovacs3097 Ай бұрын

@andrewdonohue1853 I suppose if you want to be anal, you could see a slight vacuum with a dirty air filter going downhill and engine braking, but you'll never see the vacuum that a gasoline engine with a throttle plate sees. That's where the vacuum comes from; a restricted intake path when the throttle plate is closed and the pistons are trying to pull air in. Diesels have no air restrictions (although these detroit diesels have an air cutoff plate for emergencies).

@andrewdonohue1853 Ай бұрын

@@erikkovacs3097 i think i remember that now. diesels simply regulate the fuel, where a gasoline engine regulates the fuel AND the air. for example i look at my little kubota 3 cylinder, the throttle linkage hooks up the injection pump and nowhere else. is this why you never hear about a runaway gasoline engine? it simply cant happen because the throttle plate is regulating the air charge, and it would simple go extremely rich and stall? is diesel runaway still a thing on modern diesels? you dont hear about newer diesels running away anymore.