Strange Oil Leak on Rear Cylinder - Victory Forums - Victory Motorcycle Forum
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post #1 of 28 (permalink) Old 08-09-2012, 01:51 PM Thread Starter
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Default Strange Oil Leak on Rear Cylinder

Hey,

Wondering if anyone can give me suggestions on what my bike's problem could be. I have a 2000 V92C. I noticed an oil leak which looked to be coming from the cam tensioner on the rear cylinder. Basically, the bottom 4 cooling fins at the back would get a build up of oil and eventually drip onto the bottom end casing. I replaced cam tensioner gasket, didn't help. I replaced the cam tensioner and all the associated hardware and that didn't help. I don't see any leak coming from the head gasket and I can't see how oil would work its way up 4 fins from the base gasket. It's hard to tell where the leak is as it is a slow (but steady) leak and accumulates in the cooling fins. I can post pictures later if it helps, but right now I'm thinking about taking it to the shop as I'm only a fair mechanic.

Thanks.
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post #2 of 28 (permalink) Old 08-09-2012, 04:50 PM
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I did not see where you put any silicone on the bolts

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post #3 of 28 (permalink) Old 08-09-2012, 05:19 PM Thread Starter
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Sorry. I did put Permatex on either side of the gasket when I replaced the cam tensioner. Are you suggesting pulling the bolts and siliconing them too? Thanks.
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post #4 of 28 (permalink) Old 08-09-2012, 06:33 PM
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One other thing to look for is porosity in the inner radius of the cooling fins. My first Vic had this. Thinned out and finally broke through ... just drill it smooth and put some jbweld in the hole
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post #5 of 28 (permalink) Old 08-09-2012, 07:37 PM
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Quote:
Originally Posted by jpandrusky View Post
Sorry. I did put Permatex on either side of the gasket when I replaced the cam tensioner. Are you suggesting pulling the bolts and siliconing them too? Thanks.
Yup the bottom hole goes through to an oil galley

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post #6 of 28 (permalink) Old 08-09-2012, 09:23 PM Thread Starter
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I'll try taking the bolts out and siliconing them first.

With the porosity, I suppose that would mean pulling and disassembling the engine? That's not something I would see from the outside is it?
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post #7 of 28 (permalink) Old 08-09-2012, 09:25 PM
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Actually the porosity problems they had were on the outside of the oil jacket... literally find the pin hole, drill it smooth, and jb it. (Of course if that's actually the case)
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post #8 of 28 (permalink) Old 08-09-2012, 09:28 PM Thread Starter
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Cool, guess I'll need a mirror...

Thanks for the suggestions guys, I'll give it another go tomorrow night and let you know how I make out with this.
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post #9 of 28 (permalink) Old 08-10-2012, 01:50 AM
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One trick to finding the leak, whether its a pinhole or leaking seal is to to start by degreasing the entire area... then get yourself some arid extra dry aerosol deodorant and spray the area. When it dries it creates a white film which makes the start of the oil leak show up right away
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post #10 of 28 (permalink) Old 08-10-2012, 08:27 AM Thread Starter
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I like the arid suggestion, that's awesome. I had heard of using talcum powder, but that seems like it'd be hard to control coverage. Thanks.
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