Scenicruiser bus engine problems detroit diesel 8v71 supposed to be quick and easy maintenance
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- เผยแพร่เมื่อ 20 ส.ค. 2020
- Well this isn’t going to plan on this vintage bus maintenance. The 8v71 is down a cylinder. Leaking wheel seal and other maintenance getting done
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Those old buses are rolling works of art. That Scenicruiser is a sight to behold.
Those early Detroit Diesels LOVED WASTING Oil. The oil made sure nothing rusted. The seals and gaskets leaked badly. The Great improvement was when the 92 series came out. I drove the 6V92 series in the 1980's. It didn't use nearly any oil compared to the 71 series motors.
Great bus. I was a driver for Greyhound in the 1971 year . First bus ever driven in drivers school. Never will be another one like it. Passenger's waited in terminal just to ride it. I retired after 23 years , but will never forget the experience. This type bus went from Detroit to Miami and was dubbed the chicken bone express. Detroit to Chattanooga to Atlanta to Tampa to Miami. All aboard. Thanks for videos from Ohio
As a kid in England in the 60's I could only dream of riding a Scenicruiser - or better still driving one. You had a great job!
Wy "chicken bone express?" By the time you began driving the Scenics were being replaced as flagships for the Hound by the MC-7, right?
I drove them in the late 60s mostly out of Tulsa Ok
@@n9trc Tulsa to where?
Do you remember when the MC-7 with the 4 speed manual came out ?
Used to be a saying in the fishing fleet, "A Detroit will give you a week's notice before it blows up!"
That's a funny statement no joke,
Just love those old busses. They are so different and have character.
Scenicruisers are the most-beautiful bus ever made. Greatest Era of Design!
When I first started driving truck way back in the 70's an old detroit diesel mechanic tolf me to drive them like you are mad at them. Good advice.
Or like you stole it!!
Dad told me. When driving an old Detroit Slam your hand in the door. And drive mad.
my first ride OTR was a 1973 IH 4070B, Detroit 318. The old retired teamster who oversaw all of the fleet vehicles (a non-profit music group from Cedar Rapids) said, "step 1, slam your fingers in the door, you'll do fine after that"
You still have
Yup how all 2 stroke engines should be driven, maximum lubrication at high rpm
I work for Springsteen many years ago and that was our first tour bus 56 Scenic Cruiser
Love the video introduction! Outstanding action footage of this beauty. She's in the right place for an overhaul.
fantastic , love watching the work on the buses , Thanks Scott and Kelly
Great song. We love watching you guys work on these buses, finding the faults. Wish we were living nearby to help.
I LOVE TO HEAR THAT MOTOR GROWL, GREAT JOB. THANK YOU FOR SHARING THIS VIDEO, JUST LOVE IT.
Awesome my friend, I love old busses and diesels. I only have one dream at 60, that's to live in and make a home out of a nice old bus. I've worked hard all my life but broke my neck and back in a few different places and it just took everything of life right out of me. Now I'm lucky to have a pot to pee in. I tell you what, if I could have one wish it would be to travel the 🇺🇸 living in my bus and just enjoy getting lost and fishing for my food.. God I need to feel alive again.. Bless you all. Keep up the 👍 good videos..
On Facebook I am in a group called "Scenicruising" which is about the Scenicruiser. I really like this video and saw that there's lots of good learning about this bus in this video and so I shared it in the group I am in. This is very nice work. Excellent! Well done!
Lots of memories of riding in a Scenicruiser when I was a kid, more than once when the driver had chained the old girl up and a 6 hour run took 10 or more hours. I love those buses for that reason. I sincerely hope he makes it home safely, but were it mine it would be living at your place until she was right. I am a pretty good wrench, but don't know enough to fill a thimble about a Detroit. I never have luck when I push it, LOL.
cool to see that you are taking care of those old girls I drove for the
hound out Vancouver B.C. my first bus was an MC8 loved those old square cut gears!!
Will never forget those greyhound stations.
I’m 70 and lived in the beautiful “greyhound era”
That was one thing I loved about running a 13-speed Roadranger or a 5x4 twin-stick because you could easily gear them in a way to keep rpm's high. Unlike today's 4-cycle diesels like my 60 Series which can run down the road 1100-1400 rpm, the old 2-stroke engines needed to stay high rev'd. As for that towing hitch on back bumper, it's got to go. These older buses were never built nor intended for that use and now there is structural failure which needs immediate remediation. The owners of these buses must be reminded that there is no body on frame in this design, the body of the bus is the frame. Otherwise, this is a nice looking coach.
Well said.
Detroit 8v92. That is detoits V8. Thoes had
A 4 or 5. Speed with a marrage box could have. Been 3 speed or a 4 speed. . They were my. Trannys. Now since this stroke I need aAutomatic.
@@LUCKYB. lol
The bus is built like an aircraft fuselage. Yes it's worse than a unibody. It doesn't do well with high-impact Road vibration. Put some wings on it it would make one hell of an airplane LOL
One cylinder at 0 psi. He's got 7 more- he'll be good. Don't lug it. Rpm's are your friend, just like an air cooled VW!! Great job again Scott!!
Great looking bus. My sister and I would catch one of those Greyhounds in Tallahassee Fl. and take it all the way to Ft.Pierce Fl. We were7and 8 years old.It was an all day trip. With no adult supervision 😂😂😂.
I went alone wv to Dallas when I was 16 it was alsome the freedom was amazing
I Love this Video of these old GM Scenic Cruiser Buses, these were my favorite buses to ride. when I was a kid. We used to ride buses like these with my mom when I was 2 to 6 yrs old, back in the early 70's from San Francisco,ca to Reno Nevada we used to go up to the Casinos on the weekends once a month. to have fun.
Beautiful machine. Probably my favorite busses.
hello scott i do apolize for being a few day late watching and commenting on this video good to see the scenicruiser bus and yes i notice the problems as you where showing is with the detroit diesel 8v71 and and a few others you showed and i know you will do everything you can to help fix it like your the man i say can do the job and my opinon your the best so i enjoyed watching this video and until your next video i say so long for now and take care from Randy from ontario,canada .p.s please stay safe out there .
No need to ever apologize for not watching videos right away
I worked bus and truck from 1970 until 2009 after I got out of the Army as a helicopter repairman, 25 years at Chicago transit authority, and 10 1/2 at USPS, with a 4 year stint at a truck driving school in between the two, I love buses, I believe that the scenicruiser is an automotive masterpiece, an absolutely profound statement of automotive perfection,it may have had it's short comings but just like a pretty girl it looked good coming or going!
Well done Brother. Like the 4 strokers better, 60 and 50 series. The welding shop I worked at in the 70's had a pair of 30" by 10' by 3/4 channel off of a 4 foot hill on concrete pilings. They did all their bus services, air bags and rewelding standing up under the bus. Your property screams service pit. Wrench until you can't. Still runnin coast to coast with a 50 series. Thanks
The way it runs is like a burnt valve with the way it spits in the exhaust. Too bad you don't have a bore scope to look up in the cylinder and check them out. Great video!!
Rodney Middleton
, On a Detroit you can remove the airbox covers and shine a light at the liner to examine the rings and even see the top of the piston by looking through the liner ports.
Most common repower on the old dodge power wagon is a a 5 speed from a 2 1/2 Army truck hooked up to a 3-53 Detroit. It's a tight fit but works very well. 5th gear in the Deuce and a half is overdrive.
Food for thought.
I heard of your channel from "Beginning From This Morning" and just learned you're in TN! :)
Well, keep learning something new about these old busses everytime you get one to work on. The owners too! Anyway it will make a good video in the fall working on it. Plus getting help by then. What the heck with the chain and structure cracks? Not good. Looks like the whole back end needs work. The extra radiator is a great idea but needs to be attached to the door so it's not in the way for engine work. Really cool bus but needs updating by the Grease monkey👍
I didn't know about multigrade oils being no good for DDs, I wouldn't have known any better myself. I learn from every video! Thanks so much
2 Stroke Detroit , 4 Stroke is different.
I know, that's what I meant to say. I have plenty of experience with 4 stroke diesels. 2 stroke is a different learning curve for me
Yeah buddy!
My dream home since I first saw these busses in early 70s!
I’d say looking at that piston it’s been leaking by the rings a bit ,lugging washes away the lube in the cylinders and it probably wasn’t far from taking out a liner as well
Awesome 🖤, Your family who drove that rickshaw had a lot of fun,👏
Hey Scott. Been following Jeff Bradshaw at the elderly Iron channel. Hes a down home gentleman like yourself. Hes a farmer and a mechanic. Found out that he was in a verrrrry bad car accident and hes in the hospital in critical condition. wondering if we all can send some prayer 🙏 his way on his recovery
Love your theme song, listened to it 3 times after watching the video. Love that Bluegrass muzak!
That's a pretty clean rack... Actually, that's an amazingly clean bus.
Glad you said it cause first thing I noticed when you were back there, all I heard was exhaust leak.
Great Video
Thank You.
Blue Collar Workers
Still in Demand.
First Time seeing Your Videos.i have some relatives in Kentucky.
Take Care and Godspeed!
Scott
Good nights
Thank You for sharing this great video
You did great by telling about the oil
Being a Bus owner is a busy task
A lot to learn
Great video
Actually, the very first of these scenicruisers, had twin (2) 4-71 Detroit’s. The 8v71’s did not arrive until about 1958. The first 8v-71’s were built as “no water below the ports” ( the lower part of the cylinder had no cooling) those engines are not desirable as they lead to uneven expansion of the cylinder walls. They might have had “2 valve(per cylinder) heads also. Not sure what year they started to build the “water below the ports” engine. If you ever had to pull out the first design, junk it and put in the later version. All the twin 4’s were swapped out (?)as they had a hard time synchronizing the engines and were gut less. If there was still a twin 4 in existence, it would be super rare.
I think the early 8-71’s with no water below the ports had a different air box “door” kinda like a 6-71 I recall . I remember you could tell by just looking. The rectangular port doors is the correct engine. Hope this helps…Marlin, old Detroit mech.
Should give classes for people who want to own or drive these buses, seems like lots of them don’t know squat about operating heavy equipment. I’m surprised they’re allowed to drive them with a passenger car license just because they are private coaches, considering the risk to the public.
I knkwbin California if it's over 40 or 45 ft you have to go to class b license with an endorsement that I can't remember off the top of my
In some states there is an RV exclusion to those laws. You could register a private tractor trailer as an RV and not even need air brake endorsements.
So you are an expert and the bus Police?
Statistically, big RVs are among the safest....one typically doesn’t gain the wherewithal to obtain a million dollar coach by making reckless decisions-
Your Bus is looking pretty dang good!
I like that the Greyhound is still on the front. Reminds me of a Roy Clark song. Thank God and Greyhound, Shes Gone. No smack is intended in that song memory.
I think the Scenicruiser is my favorite bus of all. What a great looking body.
If I am correct General Motors built the SceniCruiser exclusively for Greyhound only 3 years. I believe it was 1954, 1955, and 1956
Greg M I’m not sure if that is correct my dad drove for Greyhound back then and if remember I saw a Mexican line had them as well out of Texas, now they may have bought them second hand
L
I'll p
Remembering more about the Mexican buses they had 2 steer axles
How long is that thing?
Very interesting. Thanks for posting this. Have a nice day now.
Well he and that old Scenicruiser sure came to the right place!
When I first learned to drive truck. I was told that a person should run a Detroit right up against the governor, and to never lug them. it causes them to leak oil heavily to start with. so that's how I've always ran them and never had any problems with them.
Love those old greyhound buses especially with the shifter on the column. I wish I new what you new as far as fixing those Detroit Diesels. I would love to own one of those old crown school buses with the tandem axle and a 13 speed on the floor. Thanks for the wonderful videos. Were you a bus driver at one time for greyhound. Years ago I drove a school bus for 6 years and loved it but unfortunately we had no crown school buses.
crown 35 for me :). but definitly a Crown Bus :)................ in nor cal Crowns rule....not greyhound buses which i never even seen a an old conversion.... seen many Crowns tho :)
What a beast. Never seen one before this
Love your theme song! Listen to the whole thing every time......(grin) WillyB
I know the hill leaving Kentucky that your talking about and it's hard on all vehicles I would say especially on an old bus!
One of my favorite busses
Thanks for a great video keep them coming there great
When asked how they like their Detroit engines, 9 out of 10 owners said, "Speak up, I can't hear you", LOL.
The SCREAMIN' JIMMY rides again.
You rock my brother! I so want a scenicruiser!
Lovable buses 💖, great video 😊👍
I can hear the miss from my computer speakers. That engine is not happy.
Glad to see videos again.
Ol'gray dog isn't horrible, but definitely needs some love. Engines can be repaired/rebuilt/replaced, what concerns me is the structural fatigue and the shade tree "solutions"....that's definitely going to require advanced attention.
Love you videos 😊👍
That bus needs a lot of love. Those stress cracks and turn buckles are scary.
Agreed. It's a gooofy non-solution.
These coaches began to develop structural issues after just a few years in Greyhound service. I can only imagine what some of them may be like now after 60+ years!
@ not as severely as it was with the Scenicruisers! That, and problems with the piss-poor Twin 4/71 setup is what soured Greyhounds relationship with General Motors.
Good Question. I'm sure is was well into the Seven Digit ballpark.
I'm consider myself pretty handy around a toolbox. These videos make me realize how very little I really know.
Such a beautiful bus. Classic. Save the power plant, BGM !
Молодцы трудяги работяги!!!
Awesome rig, what a neat bus. Definitely don’t tow anything with it though!
Great videos sounds like a burnt out valve, in the u.k. we get quite a few valves burnt out when using the wrong oil (multi grade)on these two stroke Detroits, only use SAE40, head off pressure test new valves and seats head back on. keep up the good work.
Great content do still have buses in manual transmission rode on trailereays poor driver grinding noise gears all the time ounce we got going awesome trip
Awesome content sir fan of channel
Love the theme song.👍
What a beautiful machine
😮
Awsome and iconic Bus 🇺🇲🙂
Gotta like it. The song clinched it.
A beautiful Scenic Cruiser
Hiya All, Hows It all going.. Ok, just started watch the first few minuets and I`m smiling already, why ? well while you waited for the Scenic in the buggy, then you started back It reminded me of airports FOLLOW ME vehicles.. You NEED big flashing signs saying FOLLOW ME/ sorry, its my humour/ back to watching and I`ll be quiet. thanks for your videos as always - Ian - UK.
great video you should of added a YEEE HAAAA at the end of the song i was gettin into that lol
The Rembrandt of Detroit diesels. Mesmerizing like Bob Ross. Love the updated theme song. Thanks Scott.
Love watching you work on these! One question though. You don’t see them very often, but is that Explorer FWD? I see it on a tow dolly!
Beautiful Bus!!!
I have a 8V71 rebuilt ...for my dads MC7 sitting in my garage in Massachusetts if you need it.
Ha ha! It was hilarious,when she came in reverse on the trike! 😁
Cool old rig!!!....enjoy the diagnosis of problems. What is the empty multi belt pulley on the right for???...Love the theme song!!!!!
Rode on an "Express" Greyhound,in first passenger seats in raised "scenic"area, alone at 12yrs old in 1962 from San Diego to Amarillo....and yes, the driver got a speeding ticket just east of Flagstaff!! Those guys drove those babies
Must have been an ass of an officer. Usually they didn't ticket Greyhound drivers because of the respect they had for each other.
What a beautiful bus
Originally the 1954 - 56 GMC PD 4501 Senicruiser was equipped with the 4L71 N Detroit Diesel engine with 4speed manual Transmission until 1959 when the 8V71N Detroit Diesel engines were available and I'm pretty sure all of them were swapped while still having the original speed Manual Transmissions for more power and up the hills and Bridges around America
Originally they were equipped with *two* 4-71s, mated to that manual transmission through a fluid coupling.
@@etmccaus this setup worked in theory but not in practice.
The 8V71 conversions were started on the remaining GLI fleet by Marmon Herrington in 1962.
@@etmccaus 3 speed and clutch splitter giving six forward gears. 😉
I can’t believe how good that bus looks for its age,but looks can be deceiving.
Love your song!
Look awesome & clean 🚌🚌🚌
Would it be over fueling on the wet cylinder as the rings still looked firm in their grooves as best as i could tell from the video? New shoes and seals. Both sides as if ones leaking the other one wont be far away from doing the same. Those valve clearances are all over the place. Hes lucky he hasnt burned the valves.
Love those old busses
Use to ride this buses from El Paso to Los Ángeles 1965 was my first time!
In the early 70s I rode a greyhound 4 times coast to coast ...
That beautiful buss was running really bad mercy but it was at the right place 😄
I remember when I was a kid, I rode in a Greyhound bus just like one of these, I remember they had a 5 speed manual transmission.
Cool vintage transportation.
Diesel Creek took two semi trailers and placed them on each side of his pad (dirt) and built a gable roof with knee walls for height. That would work out great for your pad. You could cut a doorway in the sides of the trailers and establish workbenches and tool storage and be out of the elements. Sorry for spending your money. Good I'm not close, I'd be buggin/assisting all the time. That was a weeetttt cylinder!!
tomato tomato shipping semi- big steel box. You right!
I’d be quite concerned about the ass hanging out of it. Really not designed to have 3+ tons strapped to its rear as the cracks seem to illustrate. Chains and turnbuckles to the bulkhead seem a rather sketchy solution.
The trailer hitch is the red flag.
@@skinnerhound2660 I agree. These buses were never designed to tow anything. Especially not a car on a trailer.
Very , very beautiful !!!!!!!
Dang, that stinks for him.. sometimes its a hard lesson to learn things.. now he knows how to drive that thing. I know with an automatic and its gearing, I have to slow down some on the hills actually to get it to downshift so I am not getting close to lugging.
I.would be happy to own it. GREAT SCORE
There at the beginning that looked like a Carl heald trike. Haven't seen one of those in years
Ônibus maravilhoso!!!👏👏👏👏👏