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When preparing to start the generator for the first time, flush the radiator several times first to remove any sediment in the bottom hose and radiator. I tried to drain the radiator with the petcock but it was completely clogged with rust colored sludge. I had to remove the nearby drain plug...

See TM 5-6115-465-12. The small canister is the water separator. Oil and water don't mix and water is naturally heavier so it sinks to the bottom and can be drained. Inside it contains the "fuel strainer". On page 3-10, section 3-26. "Fuel filter and strainer assembly" gives the procedure to...

If you haven't watched Matt Verley's YouTube videos on these gen sets you are missing out on very valuable information. His YouTube username is sewerzuk. He brings the tech manuals to life and will definitely give you the confidence to refurbish one of these "great pieces of military history"...

The MEP-005a (30kw) & MEP-004a (15kw) have one oil filter and two fuel filters. The Napa part number for the oil filter is 1004 and the two fuel filters are 3540.

This is a photograph of the fuel injector pump. The injector lines exit towards the rear and the front points towards the radiator. Notice the circular dial which looks like the speed control on a lawn mower (it's rust colored in this photo). It is supposed to be wired in place to the rear...

If you run into the issue of no fuel exiting the day tank towards the 2nd fuel filter, remove the fitting which connects the day tank to the hose. This one was rusted shut. It is currently soaking in CLR.

I had a leaking fuel line that needed replacement. I couldn't find the proper size of the AN fittings so I mistakenly ordered AN-6 hose & fittings from Summit Racing. The proper size of these fuel lines is AN-5. Here is a photo of the replacement hose my local auto parts store made for me:

As I problem solve my recently purchased MEP-005A, I wanted to use this thread to show everyone issues I've encountered which the Tech Manual didn't address. First, the fuel selector switch. The plate for this switch should be above the main tank fuel cap. If it is painted over or missing, here...