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Unread 11-04-2013, 09:37 AM   #1
CW81Scrambler
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Gas in the Crankcase

I checked the oil in my CJ8 yesterday and the level was high and smelled like gas. It's carbureted and won't start without putting some gas directly into the carb. Is there a way that gas is draining down into the crankcase?

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Unread 11-04-2013, 09:45 AM   #2
only in a jeep cj
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Yep, bad diaphram on your fuel pump. Don't run it till your change oil and pump.
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Unread 11-04-2013, 09:46 AM   #3
seabass1858
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x2. you are more than likely pumping fuel into your crankcase that explains the loss of prime on initial starts meaning you have to put fuel in your carb. Try replacing the fuel pump.
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Unread 11-04-2013, 09:53 AM   #4
CW81Scrambler
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The fuel pump is maybe three years old. Could it have gone bad just sitting there with very little use?
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Unread 11-04-2013, 10:11 AM   #5
John Strenk
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Yes it could

also, just how much gas do you put in to start it. It could run down past your rings into the crankcase but the pump is much faster.
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Unread 11-04-2013, 10:21 AM   #6
CW81Scrambler
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Not a lot. It wouldn't be enough to raise the oil level that much
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Unread 11-04-2013, 10:30 AM   #7
seabass1858
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this happened to my 83 silverado during a 1 year deployment. It sat at the farm covered up for a year and long behold when i aired the tires, started it up after a femonths after a fresh oil change my levels rose.
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Unread 11-04-2013, 10:38 AM   #8
mastercraftka
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Quote:
Originally Posted by John Strenk View Post
Yes it could

also, just how much gas do you put in to start it. It could run down past your rings into the crankcase but the pump is much faster.
Ditto to the others and to what John said.
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