G3 seems sorted now

Information relating to the Matchless G3 or AJS Model 16 350cc Heavyweight
Member
Posts: 7
Joined: Tue Sep 05, 2017 5:01 pm
Location: LINCOLNSHIRE UK

G3 seems sorted now

Postby Roey » Tue Oct 10, 2017 4:11 pm

Had some quite heavy oil leaks and and low compression on my recently acquired 1961 G3. Ordered full gasket set, stripped down to see the valves needed lapping and then further on to find one compression ring broken but still in situe and the other compression ring stuck tight in it's groove. Oil ring seemed fine. Anyway, ordered a new +40 set from Cox &Turner ( really helpful company to deal with and next day delivery). Took me forever to clean out the grooves on the piston so to enable the new rings to fit but once done and all rebuilt using new gasket set the bike is so different. Nice compression, pulls so much better and no oil leaks! 😀

Member
User avatar
Posts: 2337
Joined: Thu Sep 11, 2003 12:00 am
Location: KENT UK

Re: G3 seems sorted now

Postby GOLDSTAR » Tue Oct 10, 2017 5:00 pm

hello Roey, that must require a 'well done you' kind regards

Committee
User avatar
Posts: 8292
Joined: Mon Jan 01, 1990 12:00 am
Location: ESSEX UK

Re: G3 seems sorted now

Postby Rob Harknett » Tue Oct 10, 2017 5:13 pm

Did you use the old trick of grinding a broken ring like a chisel, the other end pushed into a hole drilled in a suitable piece wood to make a handle. To form a scraper tool ? The tool being a prefect fit in the piston groove, to clean it

Member
Posts: 7
Joined: Tue Sep 05, 2017 5:01 pm
Location: LINCOLNSHIRE UK

Re: G3 seems sorted now

Postby Roey » Tue Oct 10, 2017 5:34 pm

Hi Rob, I did just that but made a handle from insulating tape 😋

Return to G3 / Model 16

Who is online

Users browsing this forum: Bing [Bot] and 5 guests