Re: Massey Diesel Fuel Problem?

Posted by Oldfarmboy Jim on August 03, 2003 at 23:42:57 from (12.80.109.155):

In Reply to: Massey Diesel Fuel Problem? posted by George H on August 03, 2003 at 14:17:18:

Well, don't listen to the mechanics who are pointing to electrical problems. Don't they know it's a diesel for Pete's sake? They run just fine with no electrical system at all! (Unless it's got one of those new fangled injector pumps with electrical shut off solenoids and such. But that's unlikely). Mostly it's one of two things that will cause a diesel to quit when you didn't ask it to. First, is a constriction or blockage in the fuel system. The injector pump has some very small passages that won't tolerate any particulate matter floating in your fuel. The best place to start looking is the filters as the previous gents said. Too often, those things aren't changed for years at a time. If you change the filters, you should also blow out all the fuel lines with compressed air. Make sure there's no loose crap floating around waiting for a place to lodge. Be sure to check the top of the injectors when you remove the fuel lines. Small debris can get trapped in there and intermittently keep fuel from opening the injector. The second reason diesels shut down unexpectedly is if air is somehow introduced into the system. As you probably know, the injector pump puts the fuel up at very high pressure( over a thousand psi in most systems). Trapped air in the injector lines will compress with each stroke of the pump, so the fuel stops moving and doesn't open the injectors. When the tractor is running and at operating temp., look very carefully at all fuel connections and joints to see if any fuel is leaking out in any quantity at all. If fuel can get out, air can get in. Hope you find the problem and it's a smallone. GOOD LUCK, Jim

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