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Fuel tank vent valve m170 m38a1
Posted: Mon Sep 30, 2019 5:20 pm
by bl5211a
How does one test if the fuel tank vent valve is still good ?
Part 8332556 valve, fuel tank.
Should I be able to blow air through it ?
Brian
Posted: Mon Sep 30, 2019 6:26 pm
by wesk
It should flow one way. IN. Do not forget the tank has two vents. The valve on top and the filler cap. If you are having trouble with the tank not feeding the fuel pump well it is often the cap's vent valve which someone had closed for fording and forgot to open.
Posted: Tue Oct 01, 2019 5:15 am
by bl5211a
Thanks , is there a crack pressure for the in valve ? Couple psi maybe ?
Posted: Tue Oct 01, 2019 5:21 pm
by bl5211a
Hey Wes , I was able to test with psi on in side , it’s cracking open at a few psi in .