Valve seal question

[748rum]

Hi all,
Currently refurbing my Aussie early ‘63 Morris Mini 850. The engine didn’t come with a head so I was going to use a spare 2A629 head I have sitting on the shelf.
When I pulled it apart I found this seal and have not been able to identify it or find out where to get them. It’s an original head that’s never been apart or reconditioned off a low km minor I wrecked back in the 80’s. I’ve searched the Mini sites and the Morris Minor sites and even gone to the usual specialists and can’t find anything.

Anyone got some insight on the seal the red arrow is pointing to? They were on all valves not just the inlet ones. It was in the location the blue arrow is pointing to. Ignore the new o-ring on the valve as just siting them there so I don’t lose them.

Thanks

[timmy201]

This is what my parts manual says;

[DougR]

This is what the service manual says.

20230807_172516.jpg

[748rum]

Hey Timmy and DougR,

Thanks for the info and sorry for not responding earlier, been offline travelling for work. I had seen those diagrams before but couldn’t reconcile that the o-ring would expand soo much and assumed that there must have been another seal in there for the Minor head. I had even gone into a Morris Minor specialist here in Melbourne with the valve assembly pictured and he was stumped just due to the size of the old seal. I suppose sitting in oil and being compressed for 50+years will do that.

I’ll install the 2A879 seal set I have and see how we go.

Cheers