Morris Minor Owners Club

Hi all - quick Q!
I put my Minor into a local garage so he could set the tappet clearances for me. I forgot to give him the replacement gasket I'd bought for the rocker cover, and he just stuck it back down after on the old one. Will this cause any problems?
Thanks everyone in advance!

Not unless it leaks. Keep an eye on it and if it does leak, then change it.

Wow - garage to set valve clearances !!!! Did any of them actually need adjusting ? Which garage did you use ?