Author Topic: solid copper head gasket for longstroke A7s  (Read 2005 times)

Offline terryk

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solid copper head gasket for longstroke A7s
« on: 19.06. 2011 14:43 »
Does anybody know a supplier of solid copper head gaskets for longstrokes A7s. I know there were some members searching for them some time ago did anyone find them.
1950-53 A10 rigid/plungers, 1958-61 A10 super rockets, 1947-50 A7 longstrokes, 1949 Star twin,
1951-54 A7 plungers, 1940s M21, WDM20s,
1948-50s B33s rigid/plunger/swingarm, 1948-50s b31s rigid/plunger/swingarm

Offline muskrat

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Re: solid copper head gasket for longstroke A7s
« Reply #1 on: 19.06. 2011 20:51 »
G'day Terry,
                I had some special copper head gaskets made to suit my through bolted heads and also copper rockerbox gaskets made by Lani at http://www.coppergaskets.us/ContactPage.html
 Very good quality and at only $22 each. There was a small one off fee to reprogram for the head gasket. I tried all the AU companies first but were way too expensive ($249). Send him a scan of an old one with a few dimensions for a quote.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline terryk

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Re: solid copper head gasket for longstroke A7s
« Reply #2 on: 20.06. 2011 12:21 »
Thanks Muskrat I will send him one if I cant find anyone with them
1950-53 A10 rigid/plungers, 1958-61 A10 super rockets, 1947-50 A7 longstrokes, 1949 Star twin,
1951-54 A7 plungers, 1940s M21, WDM20s,
1948-50s B33s rigid/plunger/swingarm, 1948-50s b31s rigid/plunger/swingarm

Offline muskrat

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Re: solid copper head gasket for longstroke A7s
« Reply #3 on: 20.06. 2011 13:33 »
You could use the barrels to make a template.
Cheers
'51 A7 plunger, '57 A7SS racer now a A10CR, '78 XT500, '83 CB1100F, 88 HD FXST, 2000 CBR929RR ex Honda Australia Superbike .
Australia
Muskys Plunger A7

Offline craigb

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Re: solid copper head gasket for longstroke A7s
« Reply #4 on: 28.06. 2011 15:09 »
One for the 4cylinder sidevalve Amilcar cost me $100 here in Adelaide, could find out who it was that lasercut them but the guy i got it off did 10 at a time I think. I am sure it is the way to go having blown recently another old style copper one on a week long rally etc. that cost heaps more than that. Luckily I was carrying the one I bought and just happened to have a mate who decided to come along for a day and look at the funny old cars who had been pit crewing at historic winton. Just happened to have an oxy in the back of his truck to anneal it and copper silicon to seal it! Word of warning though, carefully check the fit before fitting. Blew mine in the morning, fitted new one at lunch stop in a hurry - fired up fine but horrible clacking sound and thought I had done a bearing - then logic set in, off with the head and a piston was just touching in one point. And of course my mate had a burr and cordless drill that soon fixed that and then the car was off again and going like the clappers!

And just remembered that a guy who had problems with a supercharged car reckons that "Three Bond 1207B" is the only way to go for sealing the headgasket - solved a long running problem for him. Also recommended the "1211" for engine and gearbox - talking cars here of course but has anyone else heard of or used this stuff?

Offline beezalex

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Re: solid copper head gasket for longstroke A7s
« Reply #5 on: 29.06. 2011 15:09 »
Great link, Musky!  Thanks.
Alex

Too many BSA's