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M38A1 fuelpump
Posted: Sat Oct 21, 2017 9:10 am
by swampy
I think these fuelpumps are allergic to Ethanol gas, its that simple
Posted: Sat Oct 21, 2017 11:56 am
by 4x4M38
Its not just the pumps.
If the carb was rebuilt you should have newer gaskets and/or diaphragms
made for ethanol gas service. I believe Then and Now supplies compliant material in their kits.
That and sitting for long periods of time with ethanol gas drying in your systems way worse than the old days of regular leaded.
m38a1 carbuerator
Posted: Wed Oct 25, 2017 2:57 pm
by swampy
bought a carb kit from John@ Midwest Military......hope it is ethanol tolerant
Posted: Wed Oct 25, 2017 5:40 pm
by 4x4M38
Should be. Give him a call.
Posted: Wed Oct 25, 2017 5:41 pm
by 4x4M38
Course these old guys like leaded gas also...
Posted: Wed Oct 25, 2017 7:21 pm
by wesk
The only components currently suffering from exposure to ethanol based fuels are the older rubber parts. Stick to the modern carb kits from Midwest Mil, AJP and RF Jeep Parts and the fuel pump modern kits from then and now and you won't have a problem with ethanol.