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20T Clutch Cover

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20T Clutch Cover

Post  peter@dunfordconstruction on Sun Dec 31, 2017 10:56 am

Has anyone any tips for removing a 20T Clutch cover that has been stuck on and will not budge?

Peter
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Clutch cover

Post  piston 197 on Sun Dec 31, 2017 11:10 am

That's a new one on me Peter, must have used glue instead of Gasket compound ?? as the gear change spline comes off with the outer cover, this seems the most likely area to apply some pulling force, and maybe a kettle of boiling water poured over the case to get some expansion may help. other than than a bit of brute force may be the answer ??

JH
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Re: 20T Clutch Cover

Post  peter@dunfordconstruction on Mon Jan 01, 2018 10:26 am

Hi John,

Thanks for advice I think it may be silicone?

Peter
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silicone gasket

Post  piston 197 on Mon Jan 01, 2018 10:36 am

I always used a silicone sealant on my trials bikes, but the secret is to clean both surfaces fully then oil or lightly grease the inner cover, put silicone on the outer one only and fit,doing up the screws ( or centre nut on Villiers) just lightly overnight, then tightening fully next morning,
Doing this means it does not stick and the silicone stays in place on the outer cover only, thus the case can be removed and re-fitted while maintaining the silicone gasket
JH
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Clutch cover

Post  kerabo on Mon Jan 01, 2018 9:18 pm

Are you sure you have every screw out?
Have you got the level screw removed. I can't believe a cover can be that tight.

Ken
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Re: 20T Clutch Cover

Post  peter@dunfordconstruction on Tue Jan 02, 2018 9:30 am

Hi Ken,

yes all screws out !  I will try the heat treatment & maybe a very very thin scraper blade in the top joint.

Peter
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Re: 20T Clutch Cover

Post  peter@dunfordconstruction on Wed Jan 03, 2018 7:17 pm

Bingo,

The heating & thin blade tapped in the joint has done the trick! Thanks for the help,

Another Query I have just had to Adjust up the clutch (reason for removing Cover plate) and found someone had put a plain bolt instead of part No 6+16 locknut as in instruction book page 30.

So as soon as the engine was started it undid and clutch slipped. So one lock nut later all is well. Why an earth the designers did not put an access plug into the clutch cover heaven only knows!

Peter
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