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OIL LEAK from chaincase

Posted: Mon May 25, 2015 6:52 pm
by Strummer10
Thought I'd float this for a few suggestions.......what's best way of resolving a fair few drips coming out the case. IS IT..........2 normal gaskets or maybe one gasket with some form of liquid hermetite sealant either side (or just one side) of the gasket going on OR is there another better way ?

Cheers in advance......

Re: OIL LEAK from chaincase

Posted: Mon May 25, 2015 7:45 pm
by Timbo
New gasket? Are they nuts tightening up properly...?

OIL LEAK from chaincase

Posted: Mon May 25, 2015 8:41 pm
by rosscla
You can get cork gaskets though I can't remember where from right now. They compress and can take up any unevenness in the gasket facings.


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Re: OIL LEAK from chaincase

Posted: Mon May 25, 2015 9:38 pm
by essexgp
Cambridge Lambretta do normal, 1mm and 2mm thick gaskets

http://www.lambretta.co.uk/shop/advance ... &x=23&y=18

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 6:48 am
by Strummer10
Not my bike, but the fella does need to helicoil a couple of studs as well. It just got me thinking what others might have done with a leak etc.......I do have a leak on my LI and was going to attend to that this summer. Cheers for thoughts so far...........think he has the thicker gasket on already.....the cork one would be good though if available from somewhere ?

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 7:28 am
by paulmgreen
Fix any broken or missing studs else it's a pointless task , make sure both mating surfaces are properly flat

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 7:31 am
by Toddy
paulmgreen wrote:Fix any broken or missing studs else it's a pointless task , make sure both mating surfaces are properly flat

+1

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 8:07 am
by joespeed
is it gear oil or spit back from the carb?

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 11:50 am
by Chris in Margate
Clean up both surfaces with a razor blade and then flat off with some paper. Tighten evenly and tap it with a mallet as you go around all the nuts. Should only ever need a normal gasket.

Re: OIL LEAK from chaincase

Posted: Tue May 26, 2015 11:57 am
by stokky
I grease up the chaincase side gasket before use, makes it more flexible and better at filling any discrepancies.
Also occasionally use 2 gaskets on difficult cases.