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Hope this provides some help:

How does you battery hold up in that weather? Mine Barely had the capacity to turn the engine over around -17 C, also might be the fact I'm using two UPS batteries for it 18AH in series.

My 831a was jelled up on Monday when I lost power at 3am. Barely wanted to turn over and ran for a few minutes and died, from lack of fuel. It being 3am my 531a is way too loud for me to want to run, I went back to bed figuring power might be restored in a few hours. Woke up and still no power...

Oh man fun times ahead, center punch and a easy out is how I fixed this on mine.

Ya I have seen this a few times, are the muffler mounting bolts missing or lose? If those are missing or lose the metal will fatigue and break, I usually make it a point to check the muffler in detail before I run mine.

Might want to take a look at your valve lashing, then valve seals if it persist. Looks like what mine was doing when it had low compression. Here's is a video of what mine was doing. It did the same thing as yours, ran for awhile then next day it would no start.

I have one you can have for free, I don't have the yellow cap though. PM me your address and Ill ship it to ya.

You hit it right on the head, its retained by screwing in to the base. Ill try some different thread sealant. Thank you Chainbreaker.

Hello all, Today I broke my third Nason SM-2B-15F oil pressure switch. All the switches end up leaking where the plastic mates up with the brass end. Has anyone else had their switches die on the regular?

You adjustment screw looks suspicious to me the locking wire is missing. Might want to look into it closer

I remember someone using Evapo-Rust on their set, might be worth a try.

What controller you are using for this application, and what programming language it is based on?

Would a pressure transducer work?

Sorry about that had no idea the pressure was that high.

Is this for that controller board you making?

I would go with the same one thats on the MEP-802a, Mep803a. They are available through a few suppliers. Search "DATCON OIL PRESSURE TRANSMITTER PART NUMBER 02504" The one listed on eBay looks like a good deal. Hope this helps. Part numbers for the oil pressure sending unit.Part number...

Try putting a wanted ad in Parts Wanted section. I have seen Ebay every one in a while have one. Might want to see if anything else is missing and functional before too, might be a reason someone pulled the A8 frequency converter. Sent from my SM-G935P using Tapatalk

Since this thread is leading to noise control, on the 831a does the soundproofing degrade? One of my 831 is very quiet and the other is noisy. They both are running Kloppk's controller, they both have no missing soundproofing foam.

The MEP-701a is LOUD, much more than a 802. I have a few 831a and like them for the most part, I highly recommend the controller replacementkloppk has developed. Save you the hassle of when the stock one decides to throw a fit. Its been a while since I have heard a 802 run in person I think the...

That's it.