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SUCCESS!!!! Ok, I took the top hard fuel likes off the fuel pumps, filled each with carb cleaner, let soak for 30 min, dead cranked for 5 sec, soaked with carb cleaner for 30 min, dead cranked for 5 sec, soaked with wd40 for 5 min, dead cranked 5 sec... soaked wd40 for 1 min... dead cranked 5...

Ok, FINALLY got back to this gen.... Replaced the electric fuel pump and confirmed good fuel flow to the bottom of the mechanical fuel pumps. No start.... So I cracked the line on top of the mechanical fuel pumps and nothing... No fuel flow while trying to start!! Not even a dribble. I...

No, not yet.. still waiting on my new electric fuel pump to arrive... I just didn't like the sound of the old square unit, so replacing it with a new round one like my newer model.

Ok, I cleaned all the injectors one by one, making sure to keep the shim pack in the correct order. They really didn't look bad at all. Just a slight coloration of the carb cleaner residue in the bucket. I use a clear 1-gal bucket cleaning carbs/injectors so I can see any debris or coloring of...

Guyfang - Yes, the fuel solenoid is working fine... no issues there. The reason I hadn't found the engine TM is I have not had an issue in 20 units, where it was a fuel/engine specific problem. It's always been either a switch, or sensor, or other electrical issue. Never had to even look at...

The TM-9-6115-642-24 details testing the external components, but which manual details the engine?

Where is the higher level maintenance manual for the MEP-803a?

Ok.. well looks like its time to get a bunch of carb cleaner and start pulling the fuel pumps out... lol Thanks guys, I'll give it a whirl and see how it goes. This unit may end up as a parts queen.. lol

Ok... If I manually depress the plunger with fuel at the input, shouldn't I get some kind of squirt or dribble from the output?

Hi, Yes I'm talking about the mechanical fuel pumps on the side of the engine.... Let me check the solenoid to see how it is reacting. Luckily I have another running 803a I can compare functions with. Any good source for finding new pumps?

I have a MEP-803a I got from a gov auction just over 400-hrs on the meter... and I can't get this thing to start on diesel. Some notes: - I serviced it, all new fluids, new filters, checked the fuel tank for grime or sludge, and put new clean diesel in it. - The fuel pump sounds noisier than...