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Trying to remove injectors from my mep003a generators. Having trouble loosening B-nuts on return fuel lines to the injectors. B-nuts are rusted and cannot be loosened. Tried heat but I'm just rounding off the flats on the tube B-nuts. No room to use vice grip pliers. Any suggestions out there...

Thanks for any help I might get on this age old problem of inop brake lights on my M923. Left brake light works fine. Have all the electrical schematics and have studied them hours on end. Right brake light wire, #460, has continuity all the way to the light switch but no power when brake pedal...

Have only been able to find two fuses in my M923, and they are in the heater circuit. Is that all there is. Is the M923 like the M35, no fuses? Was hoping to find a panel somewhere but not so. Am I overlooking something? Existing threads don`t address M923s that I can find. Thanks JR

Servicing a M923. Received my 923 last week and began going through it. I know engine oil filter nos have been posted a thousand times, but at the time I needed them, didn`t know how to look them up. However, found the local NAPA dealer had good cross refs for Cummins NHC-250 engines. For...

Have 2 MEP003a gensets. Been working on their ONAN engines for 3 weeks and can`t get them to fire. Replaced injectors with new ones from "SURPLUS MAN" in Calif. Checked them out before installing. Rebuilt IP on one with new gasket set and replaced plunger guide. Has a #14 button in it. The IP`s...