How can you tell when a fuel pump diaphragm is good or bad??
08-17-2009, 02:16 PM
#1
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How can you tell when a fuel pump diaphragm is good or bad?? is there a certain way to tell if this is good or bad? was told it could be the cause of gas in the engine oil...
08-17-2009, 08:44 PM
#2
I take it you are referring to a mechanical pump on a carbureted engine?
If so, yes they can dilute the oil... but most pumps have a relief hole that will let it leak externally before it goes in the oil, but it still can happen. Look for fuel residue on the pump & smell the oil to be sure.
If so, yes they can dilute the oil... but most pumps have a relief hole that will let it leak externally before it goes in the oil, but it still can happen. Look for fuel residue on the pump & smell the oil to be sure.
