fan housing stud oil leak, hole opens into crankcase |
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fan housing stud oil leak, hole opens into crankcase |
davesprinkle |
Oct 30 2016, 11:04 AM
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#1
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None |
OK. Big leak from the front of the engine. My theorized culprit was the oil pump. So I pulled the engine and fan housing. Not the oil pump. Rather, the source of the leak was via the threads of one of the top fan housing studs. Its threaded hole opens into the crankcase breather cavity. It's clear that this will leak unless the threads are sealed somehow. What kind of sealant should I use?
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Valy |
Oct 30 2016, 11:51 AM
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#2
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Senior Member Group: Members Posts: 1,677 Joined: 6-April 10 From: Sunnyvale, CA Member No.: 11,573 Region Association: Northern California |
I would be bothered by the "big leak" remark. As that is normally not a high pressure place, what caused the big leak?
Please check: 1. higher then normal pressure in the crankcase (bad rings) 2. Cracks in the case around that stud. |
davesprinkle |
Oct 30 2016, 12:34 PM
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#3
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Senior Member Group: Members Posts: 720 Joined: 13-October 04 From: Berkeley, CA Member No.: 2,943 Region Association: None |
I would be bothered by the "big leak" remark. As that is normally not a high pressure place, what caused the big leak? Please check: 1. higher then normal pressure in the crankcase (bad rings) 2. Cracks in the case around that stud. Yeah, OK, I'm overstating. It's not really that 'big'. It's just enough, over time, to run down the fan housing and wet the bottom of the engine. |
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