Alternator cover - oil leak - Sportbike Forum: Sportbike Motorcycle Forums
 
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post #1 of 3 (permalink) Old 09-13-2007, 07:33 PM Thread Starter
 
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Alternator cover - oil leak

I've got oil dripping from my bike. It's a slow drip so I can still run the bike for extended periods of time however the dripping grimes up the fairings and my left boot.
The engine case is cracked where one of the alternator cover bolts meets the engine case. That means the bottom part of the alternator cover doesn't attach securely to the engine case.
I've tried using jb weld all around the seam of the alternator cover however I can't seem to close up the drip. Problem is I can't see exactly where the drip is coming from. I just know it is from the bottom part of the alternator cover.
Should I gob on another coat of jb weld? Or is there something else I can do to stop the leak?
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post #2 of 3 (permalink) Old 09-13-2007, 08:18 PM
 
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Re: Alternator cover - oil leak

Quote:
Originally posted by tsunami
[B
The engine case is cracked where one of the alternator cover bolts meets the engine case. That means the bottom part of the alternator cover doesn't attach securely to the engine case.
[/B]
There's the problem. There is virtually no way to contain modern oil except a clean, machined surface and/or a gasket.

You may be able to get the crack welded, and that's probably your best bet, but no amount of JB Weld is going to give you a permanent seal.

Riding season is almost over up there. Wrap a towel around it, ride, and fix it this winter.......Just remember that leak when turning left or putting your left foot down!!

Last edited by Rundog; 09-13-2007 at 08:26 PM.
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post #3 of 3 (permalink) Old 09-14-2007, 05:29 AM
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I had EXACTLY this same problem on my '84 VF500F. The only real solution I could come up with was to either pull the alternator cover and parts and weld it from the inside or to pull the whole engine out. Fortunately (or unfortunately) for me, I managed to crash the bike at the end of that season so I didn't have to worry about the leak anymore

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