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dieze diesal run away


 
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allen percheron
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PostPosted: Wed Dec 19, 2012 10:49 am    Post subject: dieze diesal run away Reply to specific post Reply with quote

we have a side walk plow holder that rolled over it starts but the diesal duaze trys to run away what could have happen and how to fix?
 
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buickanddeere
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PostPosted: Wed Dec 19, 2012 3:30 pm    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

allen percheron wrote:
(quoted from post at 14:49:41 12/19/12) we have a side walk plow holder that rolled over it starts but the diesal duaze trys to run away what could have happen and how to fix?



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Posted: Wed Dec 19, 2012 10:52 am Post subject: Re: duaze diesal run away
It"s running on lube oil that has ran past the rings into the combustion chamber.
Surprised you got it started without hydraulicly locking and bending the connecting rod.
Set the engine up right and wait a day.
Have something to block the air intake that can not be sucked into the engine. Start engine and throttle the air until she burns the oil off.

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percheron farm
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Posted: Wed Dec 19, 2012 11:00 am Post subject: Re: duaze diesal run away
It will run but it will just try to run it rpms up we are controling it with the injectors its like the the fuel system wontthrottle back we can run it for a min and it wont come out of it

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Bob/Ont
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Posted: Wed Dec 19, 2012 2:58 pm Post subject: Re: duaze diesal run away
It's burning the engine oil that got into the cyls. The fuel system can't control that. If you can run it and control it just do so but DO NOT REV the engine or it could blow up. Diesel can't take much RPM with out bending the Exh valves.
Later Bob

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Andy C
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Posted: Wed Dec 19, 2012 3:00 pm Post subject: Re: duaze diesal run away
Go back and read Buickanddeere's post
Andy
 
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souNdguy
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PostPosted: Thu Dec 20, 2012 5:53 pm    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

sounds like a stuck rack...maybee
 
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buickanddeere
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PostPosted: Fri Dec 21, 2012 7:26 am    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

Why would the rack stick when they flipped the engine over ?

Wondering if just are not familiar with diesel theory and are a bit scared of the noise and smoke?
 
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John T
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PostPosted: Fri Dec 21, 2012 7:34 am    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

Its possible for a diesel to run by burning of the combustible fluid product "motor oil" that got up into the combustion chamber if theres no hydraulic lock up.......

Ive had diesel engines where the rings were badly worn and they ran away because it sucked the crancase oil (a combustible fluid) up into the combustion chamber wowwwwwwwwwww what a short very smoky ride lol

Hope this helps

John T
 
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buickanddeere
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PostPosted: Fri Dec 21, 2012 8:54 am    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

Best running on lube oil I heard was at Harper Detroit Diesel in Toronto about 40 years ago.
The apprentice mechanic cleaned out the dual oil bath air cleaners. He finished service , started up the truck and gave the throttle a snort before backing out of the shop.. The engine ran away so the mechanic engaged the clutch and hit the brakes while turning the steering wheel to full lock. Fortunately the yard was clear and nothing was run over.
Next time the apprentice filled the oil cups to the full line instead of to the very top.
 
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souNdguy
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PostPosted: Fri Dec 21, 2012 2:35 pm    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

rack could stick for many reasons, flip or not.

could be bent throttle to IP linkage.. tons of stuff.

I'd hope they know the difference between an idling engine and a runaway?
 
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buickanddeere
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PostPosted: Fri Dec 21, 2012 3:56 pm    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

Wish we could see and hear the engine to obtain a better understanding of what is happening.
 
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souNdguy
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PostPosted: Fri Dec 21, 2012 5:09 pm    Post subject: Re: dieze diesal run away Reply to specific post Reply with quote

I agree!
 
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