copper head gasket

Information relating to the Matchless G12 or AJS Model 31 650cc twin
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John Carney
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Posts: 30
Joined: Tue Dec 29, 2020 10:13 pm
Location: JERSEY

copper head gasket

Post by John Carney »

Hi,
I fitted a copper head gasket last time the cylinder head was off. I got it heated to cherry red and quenched in water as advised to soften the metal and it has worked fine without leaks.
I wondered if anyone might know if I can reuse the gasket, and if so do I need to get it annealed again ? It looks fine and I would replace the viton o rings.
I also wondered if using wellseal might be a good idea or not on the head and or paper base gasket or would it just make it very difficult to get apart if necessary in the future.
Thanks,
John
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clive
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Joined: Mon Jan 01, 1990 12:00 am
Location: LONDON UK

Re: copper head gasket

Post by clive »

If it was a solid copper gasket it will need reannealing again before it is reused. I would not use welseal on the head gasket. With the paper gasket I personally have not used welseal and think it unnecessary unless you have a compromised joint in some way.
clive
if it ain't broke don't fix
John Carney
Member
Posts: 30
Joined: Tue Dec 29, 2020 10:13 pm
Location: JERSEY

Re: copper head gasket

Post by John Carney »

Thanks Clive
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