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This is all I can see on the above photo. Looks more like a board and rev number than a part number to me.

The E1074 is an Airtex pump.

Thanks @kloppk for posting the link. That is one odd switch wiring. @BrnH2ORat Make sure you check the datasheet. The Honeywell switch turns off both of the contacts at one end, diagonal on in the middle, and the other contact off at the other end. Check page four of the datasheet...

In my Yanmar manual the illustration is for the dipstick just resting at the threads, I.e. not screwed in, the L100 Yanmar part number is 114699-01760. I don't know if it crosses over to the L70, but I believe the same cap was used on all L-series engines. Available on e-bay for about $10, or...

Oh, yes. Low compression would result in a less than ideal combustion, and therefore further over fueling as the governor advances the fuel lever at the high pressure pump. However, and it is a big however, those washers are notoriously difficult to see at the bottom of the injector tunnel...

Great point! These wires are tough but sharp edges and wires are never a great combination in my experience. There is a similar edge on the '803s as well, IIRC. I remember adding some additional wire management in that area on mine to get wires up and away from an edge. All the best, 2Pbfeet

@Toolslinger that all sounds as if you are making great progress. Good luck in getting the unit back up to full service! All the best, 2Pbfeet

A dead short is a low resistance connection (short) between two conductors. After a lightning strike, I think that going over every single electrical connections is prudent. I would bear in mind that relays, contractors, and breakers have all been known to weld contacts shut, and between...

Yes, the trouble with a well sealed enclosure is what inevitably happens and water gets in. Everything is as strong as its weakest link. Personally, I think that the synchronization / transfer switches are located in a pretty harsh location (on a fender, out in the weather and road spray...

Merry Christmas, and a Happy New Year! Thanks to everyone here for their efforts to make and keep this place special. All the best, 2Pbfeet

That's great that you plan to keep a close on eye the generator. Running a diesel engine out of fuel is not great for the injection pump(s) as the injection pump relies on the diesel for lubrication. Being a very tight tolerance mechanical item, it doesn't take much to trash an injection pump...

That's a great first step, but there is still the connection at the end of that line (dirt, debris, scratch, etc.) for a possible site for a leak, and the pump itself. For the unit that I mentioned above, there were no bubbles in that line, they were getting in just at the connection to the...

And I would add the MOV, if yours doesn't have it already. (The blue item in @kloppk's post above. All the best, 2Pbfeet

FWIW: Those l70/l100s are prone to overfueling if there is air getting into the fuel line. 90% of the time it is an air leak on the suction side, and the air leaks can be hard to find because it doesn't take much air to mess things up. I had one that turned out to be a hairline crack on a fuel...

@Guyfang What about the fuel tank cap? Does it have an air vent in it that might be picking up water? All the best, 2Pbfeet

For what you need it for, I would second the phase converter suggestion, but not a rotary phase converter, a VFD, which for 15A will weigh about 7lbs and be 12"x6x"x6". E.g. https://www.amazon.com/HKS-Variable-Frequency-Controller-Converter/dp/B09HZVZSGL/ If you buy something that isn't the...

Congratulations on fixing the issue! If you have fuel quality issues at the site, you might consider using a Racor style filter unit with a clear bowl. If you have concerns about pressure loss across the filter, I would go up a size or two, which also gives the filter more capacity. All the...

Thanks for clarifying that. My apologies, I have only seen the large military RO, Reverse Osmosis, systems. That looked like a small US civilian style transformer to me. All the best, 2Pbfeet

Which picture? I must have missed an RO photo... All the best, 2Pbfeet

Better to drain the tank now when you have time and control, than later when you might not. I would suggest that as this generator is new to you, while you are changing the tank nuts, check for debris, slime, and crud in the tank, and wipe the inside clean. No sense in washing crud into your...