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West Central Iowa | OK I got the manometer tee'd in to do some more checks.
Static pressure with tank valve on and engine off it is close to 16"WC.
Engine running with tank valve all the way open it is down to 8"WC, which seems low but that may be due to how rich the engine is running so it is drawing a lot more fuel then normal.
When I start shutting down the tank valve it starts to really smooth out close to 0"WC and it actually runs the best a negative 1/2" WC. Am I correct in thinking it must be the demand regulator? I am not sure how this system works, as I have never messed with LP fuel systems, but everyone in the trade refers to what I would normally call the carb as the "mixer", so I take that to mean it does not meter the fuel at all, it just mixes it. That leaves the demand regulator to determine fuel mixture or "demand"
I am going to try to post a picture of the demand regulator. I would really like to find a supplier for this part besides Onan as typically there parts are overpriced in my opinion.
Edited by pirlbeck 11/18/2016 21:09
 (IMG_1196A.jpg)
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 IMG_1196A.jpg (291KB - 200 downloads)
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Propane generator running rich??
