Matchless oil leak

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Jbirtles
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Joined: Mon Jul 27, 2020 2:16 pm
Location: South Yorkshire UK

Matchless oil leak

Post by Jbirtles »

I have an alloy engined short stroke Matchless G3, which I think was built up by the previous owner. There have been various problems with the bike which I have gradually cured but now the cylinder head joint is leaking oil. Before I take the head off I wanted to know if it is a common fault, and also should it have a a copper head gasket. It's the first Matchless single I've owned since the sixties and the manual I have doesn't mention an all alloy engine.
Regards John Birtles
56G80S
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Joined: Wed Oct 12, 2005 10:45 pm
Location: N YORKS UK

Re: Matchless oil leak

Post by 56G80S »

As you got no response, giving you a bump up the list.

Johnny B
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Duncan
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Posts: 2118
Joined: Thu Jul 10, 2003 1:00 am
Location: HAMPSHIRE UK

Re: Matchless oil leak

Post by Duncan »

Hi John

Working on the theory you have a late short stroke engine not an earlier one do you have the parts list: http://archives.jampot.dk/book/Spares_l ... G12CSR.pdf on page 10 there is a head gasket in the cylinder head section.
If you have not already done so you may wish to book mark the archive: http://archives.jampot.dk/
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