The Marston Sunbeam Club & Register Forum

General Category => Technical Discussion Forum => Topic started by: Bert44 on March 21, 2025, 01:19:46 AM

Title: Head gasket m9
Post by: Bert44 on March 21, 2025, 01:19:46 AM
Hi All

I'm slowly working on resurrecting my 1937 Model 9. Crankcase zipped up, new cylinder liner and piston, head refurbished with new valves, guides and springs ( thanks Thomas). I've had the cam followers ground and polished but my cams are in poor condition. Does any one have a photograph of the cams that show the lift.
I haven't bolted the head down tightly as I'm not sure whether there was a head gasket originally fitted. My engine came with an obviously homemade copper gasket but I've used valve grinding paste on head and barrel and appear to have a gas tight mating.
Gasket or not?
Anyone have good cams they with to part with?
Title: Re: Head gasket m9
Post by: Thomas on March 29, 2025, 09:01:07 PM
Hi Brett, unfortunately I don't have the exact dimensions of the cams. Maybe the picture will help you. The head never had a seal and you did everything right with the grinding paste. Perhaps Chris Odling in the Hebrides can help you with the cams. He successfully refurbished my cam followers.
Cheers, Thomas