1: 1981 TMC MC9 Detroit Diesel 6V92T Cold Start and drive

[cumminsisldd6050]

6v92 is a v6 diesel the 8v71 is a v8 diesel.

[gmb1ify]

That exhaust clip is so amazing, I would seriously pay you to let me lay underneath that exhaust to feel the smoke blowing all over my crotch and face... diesel exhaust smells so awesome, I love the stuff. Nice bus

[phsycopiano]

6v-92, 8v-71. whats the diffrence in these?

[Mysterio2276]

LOL @ The "Detroit" sign in the front windshield... am I the only one who caught that?

[Mysterio2276]

Nice bus... are you planning an RV conversion?

[dana44s]

Does that bus have the front kneeling feature, or is it naturally low like that?

[yesiamanalien]

If I'm not mistaken you are due for an oil change :P

[maxhauler]

great engine. great bus. great video.

[wafhsecl]

nice bus..love it

[pskittle488]

Great video. It's interesting that they (the engineers) thought the cooling fans were best put way high so you had to install a really long belt to drive them. I like to have been in the same room with them when they decided to use this and what the rejected ideas were?

[SeaDollarsBertram]

nothin like a Detroit Diesel.

[zachdaney13]

gutless engine but i like the noise that comes from the ole 2 stroke

[studpuppy69]

@zachdaney13 Gutless? It's not very quick in acceleration, but it gets the job done. I've pulled 78-80 up certain inclines, most deep grades were doing 30.

[Whug01]

Can any one tell me where there water tank for the sink is on my 1981 tmc mc9 Bus?

[studpuppy69]

@Whug01 It's behind the lavatory wall, on mine its behind the mirror.

[retcan]

which of these are V8´s and which are V6´s?

thought that the 6v series were all 6 cylinders and the 8v series were 8 cylinders, but someone told me that there are 6v series that are V8´s.

[pskittle488]

@retcan

Umm, I don't know who told you that and where they got their info, but they're wrong. You where right, good job.

[dabigboi26]

very nice bus we just got the same kind not too long ago.

[BMAN294]

what does the huge pulley at the top do?

[studpuppy69]

Drives the cooling fans.

[024reredrum]

How come the idle speeds up when you park it and then slows down when you put it in drive?

[studpuppy69]

The caption tells you at the end. You can go in car at high rpm will damage tranny.

[daniel022209]

@studpuppy69

Hey do you know if you can change the horsepower on the 6V-92. Like some have 253HP and other have like 335HP. Is that possible?

[studpuppy69]

@daniel022209 I think the lowest HP is 290 HP, and 350 HP is usually top for a 6V92T. I believe they simply do an injector change. Not sure.

[daniel022209]

@studpuppy69

How much HP is on your 6V92T cuz I love the sound of it when its in idle.

[studpuppy69]

@daniel022209 fast idle or low idle? Mine is 290 hp I believe.

[reducedfat11]

@studpuppy69 your close. the horse powers do change but not by a simple injector change. they change the injectors along with adding a turbo... thats what the T in 6V92T stands for..

[dingus8888]

Damn, this is some hard core bus porn. Love it!

[TheFireman203]

wow shes in great condition

[auaiao9]

that long belt looks verrry dangerous

[remie4494]

I love this video!, The only problem, thats not a 6V92, its a 8V-71. All sound that way and all painted that green.

[studpuppy69]

Sir, thanks for your compliment. But, you must be out of your mind to think this is an 8V71, I own and drive this bus, its a 6V92T. :28. Oh, it's not an MC9, its an Eagle Model 20! ;)

[ClassicTVMan81]

@studpuppy69

This bus is the MC-9. I believe the Eagle 20 had the 8V-71, right?

[ClassicTVMan81]

It had the 8V-71 originally. He (or someone else) changed it to the 6V-92TA.

[studpuppy69]

Yup, had a 6V92T when I got her. Although having an 8V71 would be nice too!

[ClassicTVMan81]

@studpuppy69

Or better yet, an 8V-92TA...

[gopee21]

Hey there, I just got finished buying an MCI MC-9 1987, It has the Allison HT740 Transmission and a 6V-92 DDEC Engine, Now I am trying to get it some insurance so that I could drive it around the block! Any Suggestions?

[grnthmb55]

I got insurance for my bus through Progressive Commercial. Are your plans to convert it into a motorhome? I got my bus registered as a camper, and told Progressive that all the seats had been removed and it would be a camper.

[studpuppy69]

Geico and Progressive should offer, try Statefarm to for RV. They should do commercial policies too.

[13svincent]

cool, so what do u do with this bus???? does it have a jake brake????

[studpuppy69]

No jake brake, just take it around the block once a month and poke around with it.

[13svincent]

aw dang, the jake would sound good if it had one. lol thats pretty cool, if i had the money i would buy a bus too. i drive a truck for a living so that helps get my diesel fix.

[studpuppy69]

I'll be driving a truck to shortly, tractor trailer I mean. I've been driving a bus the last year and a half, the last one I was let go for refusing to drive an unsafe bus. The pay and the headache isn't worth it. I still like buses though, but driving buses for others...

[13svincent]

wow, i hope it wasnt grey hound, thats scary. Well you did the right thing, its nice to know there is still some drivers out there that care for safety. Ya i have never thought about driving a bus b4, i would think the ppl on the bus would get on my nerves lol

[thenewmadmax]

What's that belt turning up there?

[Andewsfarm]

blowers

[studpuppy69]

If you liked this video, check out a cold start in the low 40's in my other vids.

[Kenster1025]

A lot of the NFI D40's have that engine.

[ClassicTVMan81]

If you mean, from 1987 to 1994.

[asulca593]

which of the rear axles is the drive axle? and is the other one for better weight distribution?

the vertical engine belt (whatever it is for) appears very wobbly; any reason to worry?

did these have a proper frame or were they monocoque?

i know nothing about this so i thought id ask.

[studpuppy69]

Center axle is drive axle. Tag axle is to prevent other axles from being overweight when bus is loaded, only rated at 6k though. Newer buses are 12-16k I believe. Wobbly belt is normal, once the air cylinder fills with air its tightens the belt and no slack to wobble. Its monocoque construction, very strong heavy duty frame, very clean underneath. Thanks for watching.

[11xr1east]

Have you had any major issues with this bus, as far as repairs that cost you alot of money?

[studpuppy69]

No major issues. Just items that need maintenance, or lack of maintenance by previous owner.

[11xr1east]

Ok im anticipating purchasing a mci. I had a very bad experience with a eagle i owned and i don't want to repeat the same mess with the mci.

[asulca593]

i do enjoy listening these engines. certainly simple and rugged engineering.

im also wondering...there seems to be a little bit of a "flutter" (for lack of a better word) from second to third gear. i've heard it on buses i've ridden before.

btw, what do you plan on using it for?

[mahatma171]

@asulca593 I always thought that "flutter" was the heavy duty torque converter engaging. Perhaps someone can correct me if I'm wrong.

[mc9man]

Great video, my man!!!! It takes back to my days when I was working with the "Hound" having to do this process everyday to get em' ready to roll.....LONG LIVE THE "9'S"!!!! DEATH TO THE 102D3'S, 102DL3'S, G4100'S, G4500'S, AND THE NEW PREVOSTS!!!! PLEASE RESPOND!!!!

[studpuppy69]

Thank you. I like the 102DL3 one of my favorite coaches along with the MC9.

[ClassicTVMan81]

The only Prevosts I'd admire are those built through 1994, those that also employed the 6V-92TA, 8V-71N or 8V-92TA Detroit Diesel engines.

[studpuppy69]

@ClassicTVMan81 Both the 2 stroke and the Series 60 are great motors. It's nice to drive both time to time.

[rell9216]

can u make a video of how to start the bus from the inside

[Farout397]

remove the muffler!

[burghill1979]

can u control the fast idle speed?

[studpuppy69]

no.

[hustlaoftheyear1212]

it sounds exactly  lyk a rts tmc and orion 1.......i came from urbana on one of these buses in 2002

[w5pda]

Nice touch with the metal polish :-)

[abyssunderground]

How come the engine speed picks up when its at idle?

[studpuppy69]

Fast idle, there is a switch that raises the idle from 600 to about 1,000 RPM. This is a mechanical engine, an air cylinder fills with air, pushes the throttle and raises it to a preset level. It keeps the electrical system charged, oil pressure up, and builds air pressure faster. In the winter it keeps the engine warmer.

[abyssunderground]

Cheers for the reply. Makes sense I suppose. Bit annoying though!

[hondaxr8013]

i wuld love to drive 1 of thos

[gsm19911]

Also, are the newer MCI's like the j4500 using the "squirrel cage blowers" or the regular fan blades? Im assuming they use regular fan blades but dont know for sure.

[studpuppy69]

I believe the J4500's use a 'gear box' that powers a PTO style fan blade, I think there is a fan clutch with two speeds.

[gsm19911]

Do these buses have regular cooling fans at all hidden in the compartment or are the "squirrel cage blowers" (similar to a furnace fan) all that these buses have?

[studpuppy69]

Squirrel cage type blowers.

[dieselchevette]

What is that very long floppy belt running up top?

[studpuppy69]

It drives the 'squirrel cage' blowers, they pull air through two radiators, one on each side. The air is pushed down on the engine and exit's below the coach.

[6V92TA]

@ 2:11 ....YOU BASTARD!!! LOL!!

lovely ole 9 there. I remember ride'in a couple 9s back in the early 90s on Greyhound.These were the last 8V71 powered buses Greyhound optioned for. All other coaches came with 6V92s. BTW...how much did this old beast cost?

[RDG484]

It is quite possible that the coach came from the factory with the 6V-92. I remember SEPTA RTS II coaches that had 6V-92's when new in 1980.

[ClassicTVMan81]

I'll bet the 6V-92TA replaced the original 8V-71N engine.

[studpuppy69]

Yup, that's a big 10-4. This used to be an old Greyhound, 4905 was her fleet number. Then spent some time in Miami.

[dynamicleverage]

You need a tripod, my friend. Good vid though. - Daryl, '69 MCI MC7 & '77 GMC 4905A

[studpuppy69]

I have a tripod its really crappy, first time shooting video, and first time using the tripod. Thanks.