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Bump... I remember seeing someone post a video about how to disassemble the metering pumps on these sets. Can anyone provide that link here?
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803A Hard to start
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Did you ever try this?
quartermeter
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Yes I changed the main fuel filter.
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MEP 802A Fix-up Thread
Per the -10: Normal Operating Temperature 170-200 °F (77-93 °C) Thanks, I guess I am well within that range & the bad radiator had me running a but more hot than that.
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quartermeter
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quartermeter
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First I’m changing the fuel lines before & after the pump
I think light in the dark gave you my number. If you want me to look at your unit just give me a call. I'm only a couple of hours from you. I've refurbished hundreds of these and can fix it for you.
I wanted to give everyone an update. Jim brought the generator to me to work on and we found that the hard line going to the metering pumps had failed and clogged completely. After replacing with a good used line, the generator performs perfect. Hope this helps someone else.
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Thanks for the followup and the assistance Jimmy.
quartermeter
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Yes thank you
Ray70
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So the moral of the story here is apparently that we should check fuel flow right at the metering pump inlets.... checking at the Banjo bolt is apparently not enough!
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Until this machine, I have not heard of (or seen) the rigid line being completely blocked on these sets. First for everything I suppose.
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Indeed. Never saw a hard line plug up.
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That's saying something.
uniquify
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Curious... What kind of junk was in the hard line? Was someone in the past running it with bad/missing filters, or did the hardline corrode itself shut?
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my thoughts also. Normally can never happen, with all the filtering. Although, if someone had lines off, and crap got into the lines, PAST the filters, could happen.
quartermeter
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What’s it saying??
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Guyfang has been on/in/around military gensets longer than some eastern european countries have been autonomous.... and if he hadn't seen that failure, its more than uncommon.
Still don't know what happen. I'm going to cut the line this weekend, in half to see. I tried to blow 120 psi compressed air in the fitting of the return line and could not get air to bypass. I tried each of the rubber hoses that go to the metering pumps and could only get 2 hoses to blow air. Very weird to me. I replaced the filters again and they both looked fine. I ran it for 2 days at 10kw and it has performed great.
Ray70
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So out of curiosity, was the hard line plugged near the Banjo fitting and no fuel is passing to the metering pumps? Or are you saying the tube is clogged near the far end and the fuel can not reach the bypass that goes up to the injector returns? If you are only talking about the bypass to the injectors, I've seen several that were blocked off, but not with junk, they appeared to be blocked from the manufacturing process, possibly with brazing or something as I had to drill a tiny hole through the end. Not sure if it is supposed to be sealed off by design or not.