First ride out....

First ride out. Seemed to go well after a light overhaul. Well guess not. Leaking crank seal on the primary side annoying but something you can deal with.
Then the zinger: rear head stud won't hold any torque. Less than 10k on a FullAuto head. Naturally it torqued up just fine on the bench. Guess it is 'off with its head' time.
Seager Engineering still the go-to on this job? I'm in the UK.

Sorry to hear that Onder. Best of luck with the repair, Cj

I've had excellent work done for me at seagers