Gas in crankcase
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Elder User
Joined: Feb 2013
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Gas in crankcase
'83 300 engine. I suspect either the carb (1 bbl) is leaking gas down the intake or the fuel pump diaphram is broken.
It runs sort of bad, but fuel delivery seems ok.
I thought I'd remove the fuel pump and test it for leaking by pouring water down the inlet line, expecting water to dribble down the actuator arm.
Will this work?
It runs sort of bad, but fuel delivery seems ok.
I thought I'd remove the fuel pump and test it for leaking by pouring water down the inlet line, expecting water to dribble down the actuator arm.
Will this work?
Posting Guru
Joined: May 2013
Posts: 1,122
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From: Haysville, KS
Yeah. Do that. Let us know how it works out for you. Press 91, then after you light the match press 1.
LOL
I'd just go ahead and replace the fuel pump. Cheap, easy, and it couldn't hurt. Many times I've seen bad fuel pumps cause the issue. There are other possible causes as well, but fuel pump would be my first thing.
I usually like to do some testing rather than throw parts at things, but in this case, it's cheaper and easier to replace the pump.
But again, that's just me.
LOL
I'd just go ahead and replace the fuel pump. Cheap, easy, and it couldn't hurt. Many times I've seen bad fuel pumps cause the issue. There are other possible causes as well, but fuel pump would be my first thing.
I usually like to do some testing rather than throw parts at things, but in this case, it's cheaper and easier to replace the pump.
But again, that's just me.
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Elder User
Joined: Feb 2013
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Pulled the fuel pump.
The inlet was still full of gas to the top, so very doubtful the diaphram is bad.
But for $25 I'll replace it with a new one.
I'll jump to the carb now and do my first rebuild.
The inlet was still full of gas to the top, so very doubtful the diaphram is bad.
But for $25 I'll replace it with a new one.
I'll jump to the carb now and do my first rebuild.
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