Detroit 4-71 in gmc 650

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gunna-1, May 5, 12:43pm
Running away start after the 30 years http://www.youtube.com/watch!v=8M1o2rpO_JY&feature=related

attitudedesignz, May 5, 1:21pm
Ain't it funny how the young-uns run but the old boy just keeps calm and sorts it LOL.

I had an old Mazda van that did that once, i just got out, crossed the street & let the piece of poo kill itself.

gunna-1, May 5, 4:08pm
I know, it happend to me once when i was yonger with a bike, i was push starting it and the throttle jammedopen so i pulled the clutch in and dropped it on the ground because i had no killswitch hooked up and no way of stoping it, and my mate at the time ran over and tried to pull the sparkplug lead of but he kept on jumping back and forth and pussey footing around, and i was packing myself just as much as he was, but i cared alot about engines back then so i yelled at him to get the f out of the way, and i walked right up to it and grabed the lead with a firm grip not careing if it belted me or not and got it of in one go, then later on in life it happened to my old hillman hunter, because it jammed on a stuped bit of wire i had to hold the choke on, and it stuck on full while i was under the hood, and i calmly jumped back in it and turned it off, and all i remember thinking was how awesome it sounded at full speed lol.

mrcat1, May 5, 4:10pm
If they knew anything about Jimmy's, they have a strangler under the super for exactly that problem. Flip a spring loaded lever and it shuts down.

gunna-1, May 5, 4:16pm
Whats are jimmy,s!

attitudedesignz, May 5, 4:53pm
2 stroke GMCs

mrcat1, May 5, 4:58pm
No, 2 strokeDetroit diesel not GMC's. It just happens this one is in a GMC.

philltauranga, May 5, 5:20pm
Probably dosent help when you pour half a can of engine start down its throat like they did.

ladatrouble, May 5, 5:30pm
A runaway diesel is a scary thing to be around - but being a 2 stroke it was probably only doing 2,000rpm. It didn't like the ether, and he was pouring so much into it I reckon it's kicked back and run in reverse.and therefore no governor control.

mrcat1, May 6, 12:51pm
It's not running backwards as the inlet is still sucking and the exhaust gases are still going out the exhaust, most likely throttle control stuck wide open or governer stuck open, or its running on sump oil.

poppajn, May 6, 2:27pm
Agree, worst thing you can put in them, they become addicted to it.

gunna-1, May 6, 2:28pm
My old hunter done a major rev bakwards once after it was running real rough, but it didnt sound anything like the truck though, it just spewed a whole lot of smoke out the carberator so it must have been sucking from the exhaust, it did a fair amount or revs backwards though for about 30 seconds.

sandndude, May 6, 2:33pm
They can also draught oil up from the sump and start to run on that some of those old 2 strokes, and without a strangler they will increase rev's untill they destroy themselves.

gunna-1, May 6, 2:38pm
Are those diesel motors 2 stroke!

gunna-1, May 6, 3:15pm
Far out i never knew that, is that all diesel motors or just some of the old ones.

a.woodrow, May 6, 4:29pm
There are still 2 stroke diesels made, but they are not common. By far the majority are 4 stroke

busdriverman, May 6, 5:33pm
Read about how a Detroit 2 stroke diesel engine works here
http://en.wikipedia.org/wiki/Detroit_Diesel_Series_71

skin1235, May 6, 5:36pm
as far as I know the loco's on most of our rails are 2 stroke diesels, 14 and 16 cylinder jobbies

mrcat1, May 6, 5:38pm
Just for your information. Worlds largest 2 Stroke engine.

http://en.wikipedia.org/wiki/W%C3%A4rtsil%C3%A4-Sulzer_RTA96
-C

scoobeey, May 6, 5:47pm
Exactly! havent had that prob on mine yet touch wood!

mrcat1, May 6, 5:59pm
The new DL locos from China have 2.7MW German built MTU 20V 4000R43 engine's, they are 95.4 liter, V20 4 stroke diesels.

mrcat1, May 6, 6:04pm
I am actually wrong with that statement, GM originally made Detroits back in 1937 but in 1965 they became Detroit diesels, the "jimmy" name would have come from when they were made by GM, in 2006 MTU bought detroit diesel and 2 stroke Detroits are still made brand new to this day.

don_logan, May 6, 6:25pm

alltorque350, May 6, 6:43pm
Shiney

scoobeey, May 6, 7:33pm
so do they still make the 71 series and usa made