Re: Dynahoe 3cyl diesel fuel presure

Posted by NC Wayne on October 28, 2004 at 18:40:06 from (205.188.117.7):

In Reply to: Dynahoe 3cyl diesel fuel presure posted by Davehaver on October 27, 2004 at 16:58:31:

I've never seen a Detroit fail to run from low fuel supply pressure, unless it was because the filters were stopped completely up and their was simply no fuel. Here are a few things to try. First off give it a snort of ether and see if it even tries to fire. This can help you narrow things down as to wether the problem is fuel related or air related. Fuel and air is all a diesel needs to run and giving it a little ether you know the fuel is there so it helps narrow things down...and no it won't hurt the engine unless you give it way too much, all the engine knows is that it has a positive, easily ignitable fuel source.....Like one post already said make sure the emergency flap isn't tripped, and along the same lines you can also pull the intake snorkle and see if the blower is turning at all. Sometimes they will twist off the blower drive shaft and cause the problem your describing even though the flap isn't tripped. With the blower not turning the engine gets nothing through the intake and it shouldn't fire even if you give it a snort of ether. Next check the rack and make sure it's free. The skipping may have come from sticking injector(s) and now one or more are stuck in a no fuel position and not allowing it to start. In this case it should fire on ether. I've also seen them drop the lower half of the liner by splitting around the middle where the air inlet ports are. As you can imagine this is also "not a good thing" and can cause strange behavior out of the engine. Beyond that without actually being there it's hard to say what else might be wrong. Good luck and be sure to let us know what you find. Wayne

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