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Because the engine does run, you can probably safely assume there’s no problem between the IP’s and the injector nozzles. Have you replaced those fuel filters yet?

I think that I found it. Posted back in 2017 by another member. https://www.steelsoldiers.com/attachments/tb-11-6115-741-24-pdf.689527/

Hi Leonardo, the only good explanation is that it's running itself out of fuel. Even though the fuel tank is full, the fuel supply isn't keeping up with the demand. It would suggest a restriction in the fuel system. I would start with replacing both fuel filters and go from there. With the cover...

I've been searching on this forum for an explanation of what a "Tier II Reset" involves. I placed it in the search field many different ways and I can't seem to come up with a good description of what is actually done to these generators during this procedure. I often get the question from a...

That linkage looks a little sloppy too. Is that normal?

Also, these pumps come apart fairly easy. Maybe you can grab a cup of coffee and carefully disassemble one of them in a clean environment. Lay the parts out in the order that they came apart. You may be able to see what’s causing the drag in the metering valve that way and repair it. If you’re...

It would be a good idea to post something in the “parts wanted” section. You will surely get some responses there. I believe the MEP-802A and the MEP-803A units use the same IP’s. Also, look in the “parts for sale” section too. Good luck!

I should have referenced the charging amperage. Most off of the shelf 12V battery chargers will charge at 10 -20 amps, and as the battery voltage comes up the charging amps go down. At that rate it could take 12 hours or longer to charge a good battery with 300 CCA. (Cold cranking amps) Some...

While I’m thinking about it, one of the “signs” of a bad lead/acid 12V battery is that if it was discharged let’s say below 11 volts before going on the charger and that voltage climbs quickly to 15 volts and above while it’s being charged, it’s probably not a good battery. A “good” 12V...

Again, that would depend on the batteries that you’re using. Size, state of charge and whether or not they’re actually “good” batteries. Do you have access to a carbon pile DC load tester? If not, it’s kind of a guessing game. If you’ve been charging them (and it sounds like you have been) and...

My experience with these 804A & B models is that it does take a little longer cranking time because of the mechanical fuel lift pump as apposed to the electric lift pump on the smaller units. But if the engine does start, follow Guy’s suggestion earlier in this thread and simply loosen the high...

One other thing that’s worth mentioning here. If you’re dealing with a Libby VR, then the tests above will apply to your unit. If you’re dealing with a Technology Research VR then I believe there’s a different test procedure in the TM.

Glad to give you what I’ve learned. I miss-labeled the a/c voltage regulator though. It’s actually component A1, not A5 as I referred to above. Sorry!

I recently had a similar problem with an 804A unit. I had some expert help from a member on this forum. It may be a good idea to follow the TM below and properly check your A5 a/c voltage regulator. Write down your results from each step so you can post them here. A big shout out to this...

I would also suspect that he will first need to shut down the remaining 2 legs of main power that are still live before switching over to generator power. Again, I’m not sure because it’s not my forte’.

I just sold a 804A 15KW unit to a guy up in Issaquah, Washington. He has a business with 3 phase power. For some reason he quite frequently loses one leg of power to his shop. When this happens, customers vehicles become stuck on the lifts until the power is restored. He Se the reason that he...

It appears that way in your photos.

Sorry, I meant to reference line #3 in the drawing, not #2. Does this line follow the same path as the one on your engine?

Yes, it appears to be on the low pressure side. Item #2 in the drawing that you posted…does the represent the actual return line from the IP on your engine? It appears by your photos that this line goes up to between injectors #2 & 3. In the drawing it appears that it goes up the front of the...

It might look something like this. The upper “yellow”switch is the main on my 200 amp service panel. The 60 amp breaker is for my generator supply. I can only turn on the generator breaker if the main is turned off. Commonly called an interlock.