353 DETRIOT DIESEL

ben brown · Dec 27, 2013

guy come into my shop this afternoon i do work on his skidder and such ask what you know about a 353detroit i say nothing, so here is his problem he has to wire the throttle full open to get it to start and leave it there to run i believe that the governor is not work as it should he tell me that when loading logs that it well pull down you have to stop to let it catch up. it runs a knuckle boom for loading logs any suggestion on what the problem might be

Janicholson · Dec 27, 2013

All diesels run at the level of fuel delivery up to the point that the amount injected is so huge that it chokes on fuel Black, Very Black smoke. On the other end of the situation, lack of fuel will cause it to run at only one speed and have no ability to be governed. It could be either a problem with the pump, governor. or restricted fuel. Jim

RodinNS · Dec 27, 2013

Governor may not be responding correctly.... but it may also be that the rack is stuck in one of the injectors. Either way he's risking a run away with the damn thing. That might be the best case for all involved if you have a 4BTA that you could drop in place of the old driptroit.

Rod

JDemaris · Dec 27, 2013

Pull the valve cover off and look inside to see
what's going on. It's a pretty simple system and
you should be able to see what the problem is. Each
cylinder has its own injector pump that is activated
by a rocker arm. Each injector pump has a shaft
sticking out of it that moves back and forth to go
fast or slow. The engine governor hooks to those
shafts. When you pull on the throttle lever - it's
attached to the governor which in response - should
move each rack in those three injector pumps.

jm. · Dec 27, 2013

My experience tells me pretty simple solution most likely. You will have to pull the valve cover, then right in one corner you will find a small rod that goes over to the governor housing. Most likely you will find that the rod end that goes to the rack has worked loose or the in is out enough that the rack rod is binding. Certainly worth taking a look, going to be in the governor,rack linkage.

2x4 · Dec 27, 2013

sounds like a fuel filter is clogged with the black fungus gunk. Check to see if anyone has put one of those little in-line filters that you throw away, and it is gunked up. If not the regular filter, lines & transfer pump are gunked up. If so, draining & cleaning fuel tank & all lines & changing filters is required.

8v92guy · Dec 27, 2013

Other posters have listed some of the obvious things to check. If is non turbo and probably is. check to make sure the emergency shut off flap is not half closed. I have hiked though the woods to fix skidders that wouldn't run and 70% of the time that's all that was wrong.

ben brown · Dec 27, 2013

(quoted from post at 17:55:19 12/27/13) guy come into my shop this afternoon i do work on his skidder and such ask what you know about a 353detroit i say nothing, so here is his problem he has to wire the throttle full open to get it to start and leave it there to run i believe that the governor is not work as it should he tell me that when loading logs that it well pull down you have to stop to let it catch up. it runs a knuckle boom for loading logs any suggestion on what the problem might be

thanks to all i well go take a look at it at least i have a starting place i thinking that it be the governor or something close to that with any luck it be a easy fix we all know how that work out

Walt Davies · Dec 27, 2013

Better get a book in case you have to run the rack to get all set
correctly.
Walt

hd6gtom · Dec 28, 2013

I am not trying to be a smart a--, but if you go to work on this, please make sure you know where the emergency shut off is and make sure it works before you attempt to do anything. I've been to D.D. school and seen them run away. That said, its been 40 years since I've been under the valve cover of 1 and for the life of me I can't remember how to set the rack

353 DETRIOT DIESEL

ben brown

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Janicholson

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RodinNS

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JDemaris

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jm.

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2x4

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8v92guy

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ben brown

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Walt Davies

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hd6gtom

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