Runaway Detroit Diesel in flxible bus. Diagnosing the cause of the runaway & repairing the 92 series
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- Опубликовано: 9 фев 2025
- Runaway detroit diesel aftermath and towing in the flxible bus. Detroit diesel 92 series failure, diagnosis and repair.
Dewalt vacuum link from Lowes. creatoriq.cc/3...
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"I'm glad you helped me out...because nobody else woulda" The best kind of endorsement!
My little brother was the tow truck driver that delivered this bus!! He loves his job and is a damn hard worker!!
Does he know about that thumbnail image you're using? Just like a gas pedal, when using makeup less is more.
I do not own a bus but I can not imagine a service center with the services that you offer. I think you have become a legend.
To many maintenance/repair shops I'd say are criminals
Big points for telling us WHY and HOW it failed, and not just saying it's' fixed.
This is easily the best delivery by trailer I have seen on your channel.
Real pros.
The one thing I have learned from watching your videos is this; it is an expensive venture owning a bus. Thanks for the videos, good job.
That, and never start-up an unknown Detroit 2-stroke without a pair of channel lock pliers on the injection rack!
'Absolute towing". I mean what a beautiful rig for transporting these vintage busses. Excellent job.
It sounds like a hefty price for a tow, but the expenses that go into a business like that, must be astronomical.
I just love a mechanic that’s so transparent.
Hey Scott just an FYI if you release the interlock lever between the brake pedals it would allow you to brake steer the tractor. Farmers use that to turn tighter corners. Practice it when it suits just to get the feel of it.
If the engine ran 6000 RPM without damage, why is the governor not set higher for more power? Plus I guess that is a design error allowing shaft wear to drive the fuel pump but not the governor, plus allowing the engine shutoff to depend on air pressure, which I would look into changing the latter, I guess to electric, requiring voltage to keep it running.
Do you think the dirty air filter may have saved the engine?
@@alan6832 Running 6000 rpm for a short time is not the same as being able to run 6000 rpm for a long period, the design power of the engine is a whole combination of considerations, including how fast various components wear, how much capacity there is in the cooling system, how much load the transmission and wheels can take, and so on and so on.
@@bwk4528 Revs are usually limited by centrifugal forces exceeding connecting or push rod strength. this generally happens either immediately or not at all.
Those tow drivers did it right took their time and looked out for the bus would say these guys should be number one on the call list for anyone needing a tow in their area.
That’s my Son Jeffrey that works for Absolute Towing he loves his job!
very cool!
Got the whole family cheering for him 🤣
One of the best looking busses you’ve had in lately. He’s lucky the engine didn’t blow up on runaway.
That New Holland is IMPRESSIVE
fine job sir. not many people can keep a level head and get a run away diesel shut down and save the engine.
Scott, yet another save! Those tow guys were real pros! Once again you've done a marvelous job with integrity! Thanks!
Kudos to the tow dudes. Really appreciate the amount of care they show - so much better than the usual "good enough" attitude I seem to come across these days. I sure can't afford a bus, but if I ever came across one by the side of the road and in a pickle...I'd probably suggest these guys. And that they then take the bus to you, Scott - obvs. 😁
Your little New Holland 4WD tractor is a winner. That was quite a chore, pulling that bus
up a steep driveway. By the way, that's a very nice old bus. Sturdy, solid, not flashy, and
its got good character. I can tell the owner is fond of it. I would be too.
Saved another bus and engine. BGM success story.
I know SO MANY people who would be spinning tires and shooting gravel everywhere trying to get up that hill. Low and slow - Keeping your tires gripping is the ONLY way to go! As soon as your tires spin, you have LOST 100% of your traction.
LOVE the copper piping - GREAT way to make sure your hoses don't burst!
I was very impressed with the copper to
Fast thinking owner saved his powerplant, very nicely done,
Shoutout to the transporter's too, great to see pro's with the know how, and the proper equipment to do the job right.
And of course the BGM team, Scott you and your team have every bit my respect...
you guy's are amazing..thanx again for the video's, and everything else you do every single day.
Great job man.
Thank you...
✌️❤️😁
I love the sound of that 92 Series exhaust!!
Wow this towing company actually had the right equipment and know how. Great turnaround on this one! You bought the right tractor for the jobs you have.
A very lucky and quick acting bloke. Whoever did that transmission did a good job. The revs that converter locked up at is perfect.
This is quite a quiet bus with few rattles. Impressive! Nice job on the repair.
The brakes are "Long, Long Trailer" Squeaky Happy to see the engine was not damaged by the runaway.
I really like the way that bus goes down the road it's very solid !!
Always impressed at the cohones on that tractor!!!!!!!
Maybe another tractor would have the balls to vive it a shove and a push
Came here to say the same thing! It's the little tractor that can! 😂
Maybe they put a vial of Chuck Norris's sweat in the radiator....
Cool sounding engine (not too loud) and rides well over your test run.
Glad your customer thinks so highly of you that he pays good brass to transport his bus to your place.
Good to hear you plugging your local businesses too.
Enoy your videos. Makes me dream about hitting the road in a bus like that. Sadly it's only a dream.
Love a Detroit!
Need to let the air out of those back tires. The sidewalls actually should be flexing just a bit, they don't get hot because you are moving so slowly. But if you do that, you will be amazed at how much more traction you get. Beautiful bus, I would pay the towing to get you to work on it as well.
Yay! Finally someone used the proper trailer; a Landoll!
My thoughts exactly 💯. 😊
Well it worked well on this more vintage style bus but a lot of buses would be too tall you get over 14 ft you run into trouble quick the newer buses are still going to require a RGN & even though a bus isn't over weight or width it's still considered a specialized load most owners are less motivated to hire the guys with the real nice equipment because of the money
Used to run one of those detroits in the fire truck I drove. You will never forget that sound.
I said it before and I'll say it again you guys are incredible the knowledge you guys know everything about everything and whoever it is that talks on the camera is very humble guy not sure if you guys are all family or friends but the way you guys work together is incredible keep up the very hard work you guys do and the great videos 💪💪
I'd say those tow guys were worth every penny, because that was extremely professional. Scott and Co. save the day once more, as usual.
Great video. You are a true asset to the bus community for jumping in and helping this fellow. That engine sounds really smooth after the repairs. Probably one of the nicest sounding engines I've heard. Very pretty bus.
I could notice the effect of the throttle delay function on the control tubes (racks), progressive when fuelled up,,,, oh, and I still have a blower drive shaft 'on the ready' in my kit after all these years.. Great video thanks...
What an absolutely beautiful bus. Thank you for filming this. It is an absolute joy to watch you to work on a gem like this.
Smart guy to smother the air box and cut the fuel he saved a potential serious problem most burst into flame's quickly
I don't need to see the 'runaway' as i've already experienced a runaway on my van when the seal blew on the turbo and dumped oil into the chambers. Very, very scary! Ironically, after replacing the turbo and seals my 17 year old van is now running like a swiss watch. Great thinking with the mat. Love that bus by the way.
Another great resuscitation, good thing it was shut down quickly. Your work is legendary in the coach world!
This is the brand of bus my dad worked on back in the day. He was a mechanic for Grayling for a few years, well before I was born.
it sounds nice and smooth, great job. The word has got around, there's buses everywhere. Your business has come a long way from when you started driving to jobs. Well done mate.
Glad you were able to get it fixed in a short time,nice work Scott…
That is a good running bus! Sounded real smooth on the test drive and he wasn’t sawing at the wheel to keep it going straight
What a beautiful coach! Great job finding the smoking gun and gettin' the fella back on his way.
Love the sound of the Detroit diesel. They really were the peak of technology in their day. Also, that truck driver must be a hell of a man to get comment from his big sis and mom below!
It’s a pleasure to watch you enjoy what you enjoy doing.
Such knowledgeable service! Someone who actually knows what they are talking about and seemingly does not take anything apart that does not need investigation. Refreshing! Cost of driving one of these things has to be out there, but it must be a thrill, nonetheless!
I love that little tractor! I'm sure you guys do even more, but I really like the 4x4 idea, and it's a nice size with a cab. Excellent for mowing with the A/C on.
Mowing _and_ towing 😁
I have worked in a corner street garage and when they towed in a truck that ran out of diesel, they wanted to try starting it with ether, I started it by bleeding the injector lines😊
I have been enjoyed watching your channel for a few years, can't believe you are only at 170K subs. Thanks for keeping those great old engines and busses alive! I was hoping to get into an older bus years ago but wife's health issues squashed that for now.
this is probably my all time favorite bus....beautiful design and restored to perfection......this bus has lots of luv.....cudos to owner....
That motor just purrs! I love it. Sounds so good.
MY NEW FAVORITE CHANNEL! love the videos and the great info from them!
Nice you can see the transport guys know their job very well, and attention to detail, nice to see people actually care about the quality of their work!
As mentioned a few times already, that bus is beautiful ! Nice dash board treatment...
3000 tow... half of what I paid for a whole running driving PD4104, granted that Flexible is pretty nice. That's a very interesting failure totally not what I expected.
Congrats to you guys on awesome work. And congrats to the owner on QUICK thinking to capture the runaway before doing BIG damage inside the engine!!
Great job - as always! - Scott. What robust engines those old things are! And that one had a great exhaust sound 🙂
I love how accessible and serviceable the engine is. New vehicles are getting to be Impossible to service or repair.
Hi 👋 Scott u have a good tractor glad to see it tow a big bus up ur hill to the shop safely ❤from ur subscriber Peter from SC May The Good Lord Bless u & ur family May his spirit shine upon u & ur family
well what ever its cost to get it there was worth every penny because its not only fixed with experience & knowledge its real passion and only fixed what`s broken unlike a lot of other places that would have pulled it to bits and maybe even said it would need a new engine pleasure to watch
That is an unusual failure. I don’t think I’ve ever seen a blower drive fail like that resulting in a runaway.
Those 6V92's are little rockets 🚀
8’s are better ;)
Clint (C&C Equip) Scott needs something with more HPs to pull these toys up Mt Rwenzori ... Tha NH manages but imagine if the road was wet . Good video guys . You WIN again
I was thankful Scott hadn't just put down a foot of new gravel.
The little tractor that did! Great video.
Using the existing bucket mounts you could get a used bucket and fill it with concrete or fabricate steel plate making it into a water tank to provide variable ballast weight over the front axle of the tractor.
What a gorgeous machine and a great save.
New Holland Tractor: I THINK I CAN...I THINK I CAN...I THINK I CAN 🤣
That is one sweet sounding Detroit.
Scott I know your busy could you take time and walk through the possible ways that could cause the run away? You stated fuel and oil, I know it's a lot to ask but the troubleshooting side of me has to ask.
Great job.
I think you could do a complete video just about the features and the history of this bus. Love the lights on the back.
If I owned a bus, you would be the only place I would use for repairs!!
I'm no tractor expert...but it looks like the tow cable attaches to the tractor above the rear axle. This tends to make the tractor front end get lighter as the tension on the tow cable increases. If the tow cable were to attach to the tractor below the rear axle, increased tension in the tow cable only helps to force the front end of the tractor down.
Years ago I was trying to pull a heavy load with my two-cylinder, two-wheel drive, diesel Yanmar and hooking the tow cable below the axle made all the difference.
Without if draped over the box to add weight to the rear tractor tires for traction, the tractor had zero traction to pull the bus. The wheels just hopped and never could gain traction
@@BusGreaseMonkey Roger that! Makes sense.
GREAT JOB SCOTT
As always...
GREAT SCOTT, JOB.
runnin that granny gear up that hill- wow - and like the others have said - beautiful bus
Sounds healthy now!! Great job😊
A lot of farmers like to put liquid in the wheels to add weight. They usu prefer beet juice since its non corrosive and doesn't ruin the rims. Just an idea if you haven't already considered it. Seems like plenty of power, just not getting it connected to the ground.
Our tires are liquid filled. It’s much safer here on the hilly terrain to help keep the center of gravity low too
Het Scott! Rick Delair here! I am back!! Hope ya like my new username! 😝🤣👍🏻👌😋 I missed you a great deal! Glad to be back, can’t get enough of these awesome 2 strokes! I will always love them, best diesels ever made in world history hands down! I now have 2 rare valveless 4-51’s! Interesting failure on this one! 😎😋 Cheers man! 👏👍🏻👍🏻👍🏻😊
I love it❤❤Greetings from Hamburg, Germany
WOW ! That tractor is amazingly strong !!
That 6V71 is Lucky lucky and ultra lucky. Great work as always Scott.
It's a 6V92TA
Nice looking bus and very cool how you pretty much new the problem.
When you pull the emergency stop on a 71 series engine it can strip the blower shaft .
On a 92 if you throw something over the intake it will also strip the blower shaft .
Motor mount
Motor mount
Curious as to how that blower drive got stripped. Never seen a runaway like that! Good that nothing got damaged and the owner got it shut down quickly. Most would be freaking out and standing by until stuff came flying out.
Runaway detroits make the BEST SOUND out of ANY ENGINE EVER MADE. It has the great rumble of the diesel engine, with the "revs" of a gas engine. Heaven. Some said some engines could run to 3000 rpm's and keep it there no problem. Impressive.
Glad you got his bus fixed.
Best tow I've seen on this channel. I only recall one other (Lance's) that wasn't really bad.
Crazy. Turbo and a blower. Nice
Love that Detroit diesel sound. Nothing compares to it.
That is EXACTLY how a bus should sound!
Great detective work Sir !
...you have set the slowest time for the hill climb!
Watching an old bus being winched off a trailer with rapt attention...this truly is the future of entertainment
What you need to pull buses up that hill is a dozer. A small dozer like a D-4 wouldn’t have the traction problems your tractor did. Your tractor has plenty of power, but low on adhesion. A crawler would also be easier on your driveway. FYI, GE locomotives are well know for turbocharger fires. Railroad crews refer to them as “toasters”.
A little late seeing this video, but that 6V92 sounds BRILLIANT!
in the 1970's we had one of these Flixables in the small Charter fleet I drove for. We called it the Jetson Bus after the old Jetson's TV show because of those 3 fins across the rear window Lol! Bus was assigned to the Intrastate Line run and had a 6V-71 in it and ran OK, but had horrible brakes on it that the shop just could not fix. After it was involved in 3 rear-end wrecks with 3 different drivers the drivers just refused to drive it and it ended up parked out back of the shop as a spare parts supply - but not many parts fit on the fleet of used GM 4905's and MC-7's other than the engine.
Great service Scott!
Thanks, I realized after watching more closely that the turbo sits right on top. Great content!
Excellent results as always.
I remember the 6V92T. Dad liked it better than the 8V71 318. Running legal, Dad would say. Running overweight he liked the Cummins engines, but the 2-stroke Detroits were so much simpler. I remember the Day he came home in a Cab-over Mack with a Mack 12 speed and a 350 Cummins. He was sold on the Cummins and i don't think he ever had another 2-stroke Detroit. The loads were just getting too heavy. The laws changed and he was grossing 80k + on almost every load. Fuel was getting expensive and at 4 mpg the 2-strokes couldn't compete. His last truck, a 74 Peterbilt with a 13 speed, and a 400 Cummins got 6 mpg. That was a big savings.
That’s one heck of a beautiful coach.