When A V8 Detroit Diesel Runs Away So Do You!

[@joecummings1260]

Yank the valve covers and make sure the rack moves freely. It only takes one stuck injector to hold them all wide open. Common problem, especially after sitting for a long time

[@Luvs2Troll]

Yes!

[@woodchopinbeekeeper929]

They should know better!

[@ModelTTime]

Never start one that's been down for a long time without making sure all the injectors are free. They can really get your heart pumping! 😂

[@WieDrDerJonge]

I had the same with a 8V71 that sat for 10 years. The valve in the intake tube was stuck too but I pulled so hard that it came loose.

[@enginemaster01]

Unless you have a new style single screw rack

[@MikeHanson-e6m]

Nothing like 2 people that don't know what there doing!

[@KingKatRider]

Thats what I was thinking.

[@Dina-j7h]

I really do hate to be disrespectful but you to truly do not have a clue as to what you are doing....... That poor Detroit is literally begging for the two of you to get away from it !!

[@gabrielv.4358]

This is only a percentage. YOu dont even want to imagine how man runaway diesels are left unrecorded dayli

[@UncaDave]

@@gabrielv.4358Old Detroit, call Bus Grease Monkey. He’s the goto on those old engines.

[@73Datsun180B]

@@UncaDave detroits are piss easy to tune up!

[@hobbyistliving]

a comon issue with detroits is when it sits for many years the fuel rail seizes up and when moving the trottle pedal it gets stuck wide open till you pull the valve cover off to free it up

[@grabasandwich]

From what I've read, they were designed to go to full fuel position when they're shut down, which is why they often stay stuck in full fuel the next time they're started years later.

[@jetstream454]

​@@grabasandwich That sounds right, given that a regular mechanical pump diesel defaults to full fuel when running below set speed (i.e. stopped)

[@ericgilhart5951]

I hate to see a Detroit get destroyed because people are to dumb to check the rack those engines are starting to be hard to find

[@J.R.in_WV]

They’re still out there, at least 20 series 71 and 92’s are listed for sale every week at Old Forge Power Products in Scranton PA and hundreds are listed elsewhere…..if you want to save them I’d suggest buying a few because when they don’t sell they go for scrap. The good news is even though they were pretty negligent in firing this one up it is likely still fine and a perfectly rebuildable core engine. As long as you don’t throw a rod or spin a bearing these can be rebuilt over and over again. In this case they did at least have it cranking long enough to build oil pressure before it ran off and it’s likely the bottom end survived since it was as still rolling over freely afterward.

[@RCRWJR]

I have an old white with a 6-71 I want to try start it sitting for many year. What is "the rack" is that where I should spray tha ether into ?

[@davidreyes2298]

​@@RCRWJRHere's an example of a rack kzbin.info/www/bejne/q56vo5l4jtqcn80feature=shared

[@gabrielv.4358]

Agreed, but they can be still run without some pistons

[@Wasmachineman]

​@@RCRWJR Rack in this context is the rod that controls the injectors in the head itself. Watch KT3406E his videos about intentionally letting a 6-71 run away and you'll get what I mean.

[@Projects5309]

A runaway diesel is nothing to worry about. They usually run at maximum RPM for about 15 minutes then slowly lock up.

[@daveporter9222]

When I lower the funnel and hose, the fuel starts coming back up to the funnel. Archimedes got to be laughing at that one. 🤣☮️🇺🇸

[@zachzebra56]

When you go to start it after a while, take the valve covers off and make sure all 8 of the injectors racks move freely. These work just like the governor on the engine of a lawn mower. They are in full fuel when it's off and then move back to idle or full throttle when running. (Depending on the position of the throttle lever) The injectors can get stuck in full fuel. Leading to a runaway. Even if it's just one injector. If that engine ran like that for say about 5 minutes, it would seize up prematurely or worse, throw something out of the crankcase. So always make sure that the racks are free before starting if it's been sitting for a long time.

[@rad3766]

Pull the valve covers, put a pair of vise-grips on the rack so you have control of the rack while starting. A Detroit of this vintage will have the older style rack (2 screws), even one hung injector will hold all the others at full fuel. Ditch the ether. Prime the fuel system by filling it thru the top of the secodary fuel filter (gravity) pr by using a small pump.

[@john242ti]

Yup, the same thing that you see @BusGreaseMonkey do when he's working on a Detroit that hasn't run in a while.

[@joealbert7773]

Had an old mechanic tell me that after 30 years he never saw a diesel run away. He did see a lot of mechanics run away from one when it took off.

[@thomaspetroff9117]

It's a 8V71 and the one or more injectors are stuck causing the fuel rack to not move. When a Detroit shuts down the Gov. goes to full fuel. Pull the valve cover and free up the rack. Nice old Ford TGP

[@Only4Trucks]

The passenger side said 92 but I'll take your word for it. And I will also do that! Thank you so much!

[@andrewking4885]

To tell the difference between a 71 is they have an 8VA prefix on their engine number. 92s are 8VF.

[@chadbailey189]

always have a flat piece of wood to put on intake or air filter!!!

[@alanlanghorn9528]

It probably a 6v 92 they like to run away a bit and also run backwards to

[@frazzledude]

@@chadbailey189 A ten pound carbon dioxide fire extinguisher sprayed into the intake on the blower will also shut down a runaway 2 stroke Detroit engine.

[@ogr7771]

This is hard to watch. If you don't know what you are doing then DONT!!!! It's common knowledge that if a Detroit Two stroke sits for a while that the injectors may be stuck........like I said.........this is basic common knowledge.

[@baby-sharkgto4902]

Then quit watching if you don’t like it.. that’s common knowledge 😎

[@cliby25]

​@baby-sharkgto4902 stop being ignorant. It's basic knowledge. So much videos online with detroits and persons explaining and these men still go and do this.... seems you yourself don't know either

[@ogr7771]

@@baby-sharkgto4902 Ohh, good comeback...........in your case silence would golden. Better luck next time.

[@gabrielv.4358]

@@cliby25 Some people are not chrinically online to understand everything

[@Eric.schmidt]

Take that can away from her!!! Ya better check that rack. You answered you own problem with the accelerator being stuck

[@johneckert1365]

Right!

[@RCRWJR]

No you need ether to start it. and what is the rack ?

[@FromLandVegemiteSamich]

Most louisville have 8v71N 318hp the old screw knobs on the rocker covers are a give away, 8v92 have circlip on the water pump, 8v71 have bolts on front cover of the water pump 👌🏻👌🏻👌🏻

[@Only4Trucks]

Good to know! I read the plate on the side of the engine and it says 8v92 lol I'm just learning the Detroit's myself. Thank you for that knowledge!

[@FromLandVegemiteSamich]

@@Only4Trucks what year is the truck???

[@Only4Trucks]

@@FromLandVegemiteSamich I believe a 1984. That's what I saw, but I need to look around it more to be sure. That's what the stamp on the engine read if I read it correctly

[@kleetus92]

@@Only4Trucksreally need to know how to check the rack so you don't grenade an engine that's been sitting. Ol2stroker or Bus Grease Monkey can show you how.

[@johneckert1365]

​@@Only4Trucks more like a 74.

[@kolsen6330]

Ether has killed more engines than anything else. Watched a fool in Anchorage trying to start a frozen 8-53 mid winter. Used up 3 or 4 cans of ether. When he ran out, he got the cutting torch and blew pure oxygen into the air cleaner. The right cylinder head landed about 100 feet downrange.

[@captainchicken8983]

idk if it was the ether that killed the motor dude, that is top-fuel levels of pressure to just eject a 150+ pound cylinder head from it's bolts and launch 100 feet. ive been wondering what nitromethane (fuel that contains a large amount of oxygen) would end up doing to a diesel, i think i got a general answer lmao. If you need proof that engines literally dont care if you use ether, check out this vidya from Zip Ties And Bias Plies here on YT kzbin.info/www/bejne/roPWlp-drrB3rbM , ive witnessed many detroits and 7.3 IDI's take dozens of cans of the good stuff with no ill effects, its just really low octane fuel to help cold starts. shit, old-school bulldozers and other old big diesel equipment came from the factory with small ether tanks and an ether button to get a cold start going quickly, if ether wont start an engine, you have problems worse than ether inhalation lol

[@Grounded75]

Well it started......😂😂😂😂

[@CHEVYK10]

i think we need more check the rack comments not enough yet

[@johneckert1365]

YES!

[@joshjones3408]

Man she's the shit am still laughing 😝😝😝😝😝

[@baby-sharkgto4902]

I agree!

[@Notsporebat111]

Aaaaahhhhhh, the Ether knock. Poor jimmy.

[@karlk6860]

I ran an 8V92 and its always been a great engine! Its always just a little funny when its someone elses engine, sad end for the olf girl!

[@jhonsiders6077]

You have to know what you are doing first grab the shit down lever make sure it’s free work the throttle make sure it’s free too make sure the emergency stop flap is there and operating as a lot say not a bad idea to pull the rocker covers and operate the rack tubes. The biggest thing fooling with these engines is to have a big CO2 fire extinguisher disconnect the air intake on the supercharger you can if you get a runaway stick that horn into that intake and discharge it till it dies ! The safest way to deal with one . I have ones from 2-53 all the way to 16-71s at my shop saving them for my older age .

[@Schlipperschlopper]

Never start an unknown old diesel without some CO2 gas fire extinguishers that you can empty in the intake!!! (No foam extinguishers and no powder extinguishers!)

[@JDZiemba1773]

When a Detroit runs away it's from a fuel leak on the top n the fuel drains into the crank case with the lube oil....when the level gets full to the bottom of the liner it pulls it up into the combustion chamber.....all the CO2 in the world not gonna do shit unless ALL the intake air is arrested.....🇺🇸

[@bigmackstruckstop9213]

Holy grail cow that's quite something else,and the cussing Diane was doing with excitement 😊😊

[@joecummings1260]

Detroits don't prime themselves well. Most of the guys that worked on a lot of them back in the day had either a little electric fuel pump to hook into the line or else a bulb pump like on an outboard motor. Cook use to have one he carried in his truck. McHugh brothers had an electric one.

[@passtimer]

Awesome video. When I was working for a Equipment Co. back in the early 80’s. We got a IH cab over with a 8V92. One day the driver was bringing it in the yard and we was just thought he was showing off in reality it was running away. He had a hard time getting it out of gear with the sloppy linkage and thrust against the gears. We tried putting hard cardboard over the air intake, but there was to many leaks in the piping. Lol!! She finally stopped. We think she was running on the oil buildup in the air box. We tore her down only thing we found was she stretched her conecting rods. Put her back together and she ran good till we sold her!! Good luck with that one!! Thank you for sharing!!

[@christopherhampson265]

FLANGE

[@SheenaBeena1985]

😂😂😂🤣🤣🤣🤣🤣 omg bless your heart my girl!! Lol I needed a good laugh!!🤣🤣🤣 I thought it was gunna blow up! Lol🤣

[@bryant2919]

Good job, two knuckleheads wrecking another “unkilllabke” Detroit. It WAS an 8v-92, Brilliant.

[@gabrielv.4358]

It already knocked badly

[@gabrielv.4358]

It is only hot, it didnt blow

[@Louie2309]

As much as I enjoy Detroit’s self destructing, I couldn’t watch this and listen to the mouth on this old girl. Living with her, it’s no wonder some guys don’t come home.

[@jlo13800]

The Detroits are some pretty high performance 2 stroke engines. A the new Arctic Cat 858 would look nice painted Detroit green.

[@B815MACKgal]

This video did exactly what we wanted. Got a huge amount of views and stirred up the pot. This truck is one of many that I have that is eventually heading to scrap. I didn’t care at all about the engine if it got ruined. It was so worth the response we got! We aren’t done yet! Keep watching! There are more shenanigans to come before it goes to scrap.

[@OdySlim]

I dont know how far you are fron new York state but you should try to get " Old 2 Stroker " over to check out your starting issues. He is one hell of a mechanic. regards from Ody Slim

[@dougedwards8022]

The screaming Jimmy dont like living under the hood of a Ford,,,it trying to suicide it self 😂

[@StarlightWorkshop0z]

She knows all 😅😅😅

[@Bigbriansc]

Why are runaway deisels always so damn funny 😂

[@TJ-qz6hr]

It is, until it’s your diesel.

[@chrisvolsicka1405]

Great video looking forward to the next one would’ve done the same thing ran away on me turn and run The old Ford came to life Grumpy for sure, but still fired up👍

[@davidharrell8890]

Detroit’s are known for this.

[@jlo13800]

Yamaha YZ490 also

[@michaelflores2318]

That is why there are no more Detroit Cummins and Caterpillars are taking over Detroit is history Cummins sold twice as much as Detroit

[@jlo13800]

@@michaelflores2318There is nothing 2 stroke detroit oil injection!

[@johneckert1365]

​@@michaelflores2318This is not why. Fuel prices and EPA regulations killed 2 stroke Detroits. The 60 Series 4 strokes kicked Cummins ass for the next 2 decades

[@Camcodrummer]

Hey ahhhh..the fuel rail is stuck..😂😂

[@Only4Trucks]

Haha

[@AndrewSiegfried-f5g]

The engine simply overspeeds from an unintended fuel sorce...the mechanic is the one who runs away😅

[@deborahchesser7375]

I fired up a Big gen-set 12V92 and she ran away on me, you should have seen those old guys move 😆 after a big drag off a fire extinguisher I got her shut down but it’s something if you’ve never seen one do it.

[@procta2343]

what a laugh! seeing watching you two fuck off out of the way quickly, The bloke coving his ears and bailing had me ill with laughter!

[@Jackie-e5b]

!!!! 🤣🤣🤣. Absolutely clueless those 2

[@robertwilliammee7972]

Grew up in Berks County, PA, my eyes latched right onto that Berks Products logo!

[@alanwilliamson9350]

Your intros to the videos are the best on KZbin. CONVOY all the way...Rubber Duck...quack quack...lol.

[@lavarrobinson5082]

When you lower the hose and funnel the fuel is going to come up to the funnel. The engine did not pump the fuel back to your funnel.

[@pupweiller1]

The rack is stuck, Never crank a 2 stroke Detroit that's sat any time without checking that first, Unless you don't want or like the engine..lol

[@bennyboogenheimer4553]

I hate when that happens! I puckered, and I wasn't even there! lol! You gotta do a walking tour of trucks & trailers on the property. Like is that a concrete mixer, or a boat on that trailer? What with the 4 door sitting next to this one?

[@vitajazz]

No oil check, no coolant check, 15 year old diesel fuel....obviously bad cylinder or injector or something...(sigh) AT least it didn't seem to be running on its oil.

[@spikeyjojo5829]

Loved rebuilding those 92 v8 Detroits

[@christrella3134]

Berks Products. One of my Sonotube customers. The way it's knocking it's definitely running on the either. Where are these beauties? You jinxed it by saying "" Let's hope it doesn't run away ""! Bahah haha! Good video. You two make a great team. Safe travels and God bless

[@HitokiriRaiden]

Been around one in my life when it took off everyone but me and my grandfather ran and me and him scattered for a 2x4 to block the intake, iv never been so scared but knew what needed to be done because we needed the truck to haul hay so couldn't afford to let it blow.

[@MrDiNgO87]

You were so scared!)))😂 Keep on truckin!🤙

[@Only4Trucks]

😂 for sure, caught well of guard as well. I wanted to go reach up for the fuel stop but I knew it was pretty tight and I didn't think it would do anything anyway so I had to make a run for it 😂

[@MrDiNgO87]

To turn off the engine, you need not be afraid and turn off the air) I think you know this@@Only4Trucks

[@gambeerSagr-ow2lj]

There's no other SOS like saving ourselves

[@mikesatter7372]

Detroit's are one diesel you always check the rack it's just something you always do

[@carldrexler7883]

That’s a 318 well an 8v71 could be 265 to 318 it a 70s engine cause it has round corner valve covers. Should be a red T knob in the cab for emergency shut down

[@FrankieHampton-t2l]

It's definitely a 8v92, we had an old white roadboss years ago, straight pipes, you could hear it for miles

[@alstefan4814]

Love the old 2 strokes 👍

[@huntercox1859]

You’d think people who do this on an old 2 stroke mill would pop the valve covers and check the rack after sitting for years.

[@jessehamlin700]

Love the vid. Who ever the lady is she makes the it with her comments hahahahahhaha

[@Grease1987]

That video stressed me out… don’t try to start that again till you pull BOTH valve covers and make sure the fuel rack is free, and no injectors are stuck… that is your problem. You will destroy that engine if you keep trying to run it with stuck injectors/rack. When you free everthing up it will start and run fine.

[@frazzledude]

That was painful to watch. The most common cause of a runaway 2 stroke Detroit is a stuck injector, as many commenters have already said. But also a bad turbocharger with a leaky seal can cause an engine to runaway on crankcase oil leaking out of the turbo. On these Detroit engines a bad end seal in the blower rotors can also leak enough engine oil to cause a runaway, but that is very rare.

[@jettglover1187]

“keep it running” “throttle” “what!? turn it off?”

[@vldazzman5625]

Those engines gave a safety flap on the supercharger that shuts the air off in emergencies .

[@jessiehughes9432]

Well we know who the Boss is...😂

[@carwashadamcooper1538]

I think she's a runner!

[@jlo13800]

Some who buil an 8v92 2 physco pulling truck sounds like the new Polaris 850 patriot turbo khaos sled. Mount a 4-53 2 stron in the big new Polaris buggy for the tge hell of it. The Rotax 850 Etec turbo R tge jimmy in new skidoos. At just above idle at 1200 rpm it sounds like a Detroit w 6 poke delco alternator on boat I work on. Arctic Cat new 858 at 1200 rpm would be awsome. Now scale that 2 stroke sled engine up to an 858 CID inline 6 2 stroke for tge hell of it.

[@johnbowen2963]

CHECKKKKKKKKKKKKK THE FUEL RACKKKKKKKKKKKKK !!!!!!!!!!!!!!!!!!!!! FFS!!!!!!!!!!!!!!!!

[@danhuttinger5040]

You know I believe some of the early 8v92s looked like an 8v71 they didn't have a turbo charger they were more powerful than 8v71.

[@johneckert1365]

Did those early 92s have stamped steel valve covers?

[@danhuttinger5040]

@@johneckert1365 I was a truck and equipment mechanic for 50 years I run trucks also as an owner operator I was a dirt hauler. I run some 8v71s and I got pretty good working on them I went by the book. I was trucking in Tucson and a friend of mine brought a truck he just acquired out on the job he told the other driver's that it had an 8v71 he really had them going it did have a early natural asperated 8v92 and it looked like an 8v71 he left them in the dust and they couldn't figure out what was going on, looking back it was really funny he could be a real character.

[@johneckert1365]

@danhuttinger5040 Ha that's awesome

[@johnaikema1055]

if one doesn't understand gravity...all is lost.

[@phillipgarrow2297]

I've never personally seen a Detroit diesel run away but I seen a chipped infamous 6.0 powerstroke diesel do it

[@jlo13800]

2 stroke for the win, 4 joke stroke is junk!

[@kelseywedge7167]

That was a teaching moment

[@73Datsun180B]

Only the weak run away from a runaway, enthusiasts run towards them. Only thing to worry about when a Detroit runs away is how much hearing lost will be induced!

[@markpivik6211]

What's up trucker Joe great video my friend, boy you guy's sure can wake up the dead with that old Detroit. What size for is it? I just bought me a fixer upper a 1985 single axle with the Ford engine in it, has a 5 speed with a 2speed rear end. Nice little dump truck for for a back up. Needs some cab repairs and doors, but over nice project, runs great. Stay safe out there my friend and keep the videos coming and always travel safely catch you on the next one.

[@baby-sharkgto4902]

Who is this gal, she’s awesome?!?!

[@Axial_Andrew]

I'm runnin' free... Yeah... I'm runnin' free!

[@kingjames7273]

Man she took off like a hen chased by a fox😅😅😅😅😅😅

[@ham7053]

Lesson learned. Those old detroits are pretty well junk and don’t make any power anyways. Good for making noise

[@averythomas6135]

That's not a runaway, that's a stuck rack or stuck injectors! Technically not a runaway

[@ashtonharvey5723]

Wasn’t the first time when it started to runaway wasn’t that a clue something was wrong lol? Or am I missing something

[@dangeary2134]

Detroits can run at ridiculously high RPMs, so you probably didn’t damage it. I would yank the injectors and get them rebuilt. I’ve seen runaways before, and they are scary!

[@Kevin_MacroMix]

Para que no pase eso tienes que quitar el cover de valvulas y ahi controlas la varilla de aceleración

[@charileross1986]

Vice grips on fuel line that will calm her down.

[@FranVegaGuillen]

:D diesel runs away are scary

[@geonc1]

Detroit's overspeed......the mechanic runs away!!!!

[@davidetroit]

Só corta a linha de diesel ou usar a parada de emergência no Blower. Tem q dar a partida com a tampa de válvulas aberta, se dispara Isa a mão na cremalheira.🐐😂

[@billbonu1639]

I was hitting the throttle and wasn't doing anything should have been a dead giveaway for anyone who knows anything about old school diesel engines.

[@JefferyKaighin]

Good Learning Video!

[@ashleybunch9872]

These 2 are not two Brite up young Der up stairs

[@bradballard2538]

That's why i love those engine's, sounds like it's chasing ya and gonna run you over. Lol

[@ericnelson8108]

You need to watch a few episodes of ol2stroker before you attempt to start a sitting Detroit diesel

[@dale-o8c]

Take the vavle cover off and the rack to see if it is moving freely

[@bernieskibinski3593]

Screaming Detroit, That’s the shit

[@ff912]

Keep the content coming. Maybe some merch soon?

[@Only4Trucks]

I will be doing by best to keep it coming! And I have a few stickers and shirt ideas, I'm trying to get them finalized and get some made up. I will definitely have merch soon! It's just a big learning process along the way and I want it to be easy and enjoyable for everyone looking to get some

[@ff912]

@@Only4Trucks awesome, even though you are from the Philly area, wrong side of the state, I’ll keep watching.

[@Only4Trucks]

@@ff912 I really appreciate that, and I agree, I can't say Philly is my favorite place. I learned a lot and appreciate it for what it is. But it's become a place I try to avoid lol where are you from? Maybe we can hit a show in your area!

[@ff912]

@@Only4Trucks I live in Maine now, born in the Butler county area though. Lived in Lancaster county for a few years as well. I wanna look into doing a road trip to Makungee (sp??)

[@edhiler4661]

you never start a 2 stroke with out checking to see if the rack is free and the injectors are moving free

[@peterdarr383]

Ford makes it - - GMC shakes it !!

[@eddieweigel9490]

With these old Detroits gotta have the air cleaner pipe off and a wood block ready to choke it out

[@shawnlapoint276]

You can clearly hear it running on either or fuel

[@danbuchner1494]

Now that was a HOOT LOL

[@AnthonySlavin]

They were lucky it didn't seize up or blow up lol. Definitely different lol.😅🤷🏾‍♂️

[@Herts1874]

Looked like roy orbison standing there.

[@CloudHindlen]

Pull the valve covers and put a pair of vise grips on the fuel rack and work it back and forward to make sure it isn't stuck in the full throttle position the gas pedal doesn't mean a damn thing in a 8v 2 stroke.

[@JodyHall-g3f]

Gotta make sure the rack is free on a detroit

[@junkyardwizard9092]

How come all that equipment was jus parked and forgotten??? I would love that old dump truck @ 9:25 in the corner for my farm. She'd be perfect

[@nonya1588]

I bet your Camara did die! 8 minutes of recording uselessness, just to get to the meat of it.