84-85 Trucks & 4Runners 2nd gen pickups and 1st gen 4Runners with solid front axles

Gas in oil?

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Old May 18, 2008 | 09:05 AM
  #1  
jodaddy's Avatar
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Gas in oil?

84 4runner, 22r.
1st post long time lurker. My oil smells a little like gas and I have checked the float level through the sight glass after turning it off for the night, then the next morning the level has dropped. It could just be evaporating but I think it is leaking into the intake. I have worked on carbs before mostly motorcraft 2 barrels and an edelbrock. I have searched this forum and have found an aap valve which I equate to a power valve for a holley. It enriches the fuel mixture according to manifold vacuum. When this aap is blown I have read that gas will be present in the vacuum hose which it isn't. could it be the needle not seating properly? Thanks in advance for any help.
Joe
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Old May 18, 2008 | 05:27 PM
  #2  
84sr5yoty's Avatar
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From: Pleasanton Ca
It could be all of things you listed.

The most common culprit of gassy oil is a blown fuel pump diaphragm, which pumps fuel directly into the crankcase. Has your gas mileage been crappy lately?
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Old May 25, 2008 | 05:49 AM
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i checked my oil and i got a hint of gas in it and i just rebuilt my 22r 5 speed and i have 33 all terrains on it and im getting really crappy fuel mileage maybe 10 miles to the gallon, and if the diapram is blown will it still run right?
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Old May 27, 2008 | 07:38 PM
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84sr5yoty's Avatar
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From: Pleasanton Ca
Originally Posted by Cumminspwr
if the diapram is blown will it still run right?
Yep, it sure will.
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