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Worst case to me is whatever I find the most painful... there are more than a few minor ways to have low oil pressure. Such as someone grabbing a gallon of 10W30 instead of the 15W40 that they meant to grab...or the sensor being off. All the best, 2Pbfeet

Different size (group) batteries from the same label often have very different lifetimes, so I think it is hard to generalize, so I wouldn't assume that the quality would carry over from one size to another. There was a major supplier that was notorious for having very different capacities and...

Yes, I was wondering about the possibility of diesel in the oil. Low oil pressure, plus clean looking oil in a diesel engine always makes me wonder about possible fuel dilution. Water in oil tends neither to look clean nor be low viscosity (aka low pressure). With a lot of water in the oil, you...

Sounds like a plan. How does the oil smell? All the best, 2Pbfeet

I also would be interested what the mechanical gauge reads. What kind of oil do you have in your 803? How did the oil look when you got it? 1400 to 1500 hours would low hours for wear on an original engine, but as a reset, there are other possibilities if the oil pressure is that low. All the...

Do you know of a source for boots? Thanks, 2Pbfeet

I would do it!

Where is the load bank supposed to be in that diagram? That looks like 28V was used as part of the connector power control circuit to not apply power to the aircraft until the safety circuit closed, after voltage and phase order were correct. All the best, 2Pbfeet

Spiders are often available used as well. Just make sure it has the outlets that you want. e.g. https://www.ebay.com/itm/404892933551 GFCIs do go bad, but the usual reason is that either there is a line / neutral/ground wiring error, or that some load is being plugged in or unplugged while it...

60Hz AC to DC power supplies are a dime a dozen, many with wide AC input ranges. I would just figure out the voltage and power that you need and go from there. All the best, 2Pbfeet

Marine stores often stock them. I'd try that first over an auto store. They will probably have the glass fuse that you need as well. All the best, 2Pbfeet

Either of these? https://www.steelsoldiers.com/threads/mep-803a-testing-alternator-output.214717/ https://www.steelsoldiers.com/threads/mep-803a-is-alive.149069/# or this one...

I have seen poor injection caused by residual air in a fuel line; as @Ray70 points out the fuel regulation and injection is dependent upon the fuel in the line to the injector being incompressible to deliver fuel to the injector. If the air is trapped there, the pressure pulses, but never gets...

I can't get over how clean the unit looks. Good luck, I think that you have made a lot of progress! All the best, 2Pbfeet

I would pull it open and look to see what might be 400Hz specific, but relays, meters, EMI suppression, and wire sizing come to mind. The latter being that 400Hz is getting toward more surface rather than cross sectional conductance, but not by much. The fans in other surplus load banks that I...

What do you treat your biodiesel with to preserve it? Isn't the test of the response proportional to total output, I.e. enough load for 5/7% drop? The plots looked pretty similar to me on a 2V/Hz and a 3V/Hz regulator setting (2-3% more fuel), with a load drop of about 50% capacity. What did I...

@87cr250r Thanks! That is very helpful and informative. Coincidentally, we had the tanks cleaned (water got in somehow and gummed up something, perhaps a biodiesel additive?), so when we refilled with N95, the improvement in start time and lower smoke was noticeable, as was the reduction in...

Thanks! Have you seen a specification sheet for R99 or R95? All the best, 2Pbfeet

@Chainbreaker Any updates? Have you used this in your generators? So this just appeared on several of my local fueling stations; Neste has partnered 50/50 with Marathon in Martinez, CA. Due to a fire, the refinery capacity is at about 30-50% of total, with plans to be at the full 30Million...

You can get "boost" transformers to take the 208 to 240V, if it is really an issue, but the bigger issue is only using two out of three phases on the generator. @peapvp summed up the issues succinctly. Not every AC is capable of operation at 208V, and some of those that are may need to be...