Interesting project, I’m not familiar with the A70. Thanks for posting. BTW the Hogslayer Norton Combat 750 is up and running again, had a oil supply check valve stuck closed.
Yikes, good news that you found it, bad news that it happened. My guess is the bike probably had been sitting for quite a while and oil pump lost its prime. After a hibernation, always a good idea to prime the pump by taking the feed line off and squirting oil in there to make sure.
Always a good day when it's a Norton Guy day!
Thanks for the kind words, I've had a second chance at life and I'm blessed to to be able to do what I did as a teenager, work on old bikes and cars.
keep us updated
Interesting project, I’m not familiar with the A70. Thanks for posting. BTW the Hogslayer Norton Combat 750 is up and running again, had a oil supply check valve stuck closed.
Yikes, good news that you found it, bad news that it happened. My guess is the bike probably had been sitting for quite a while and oil pump lost its prime. After a hibernation, always a good idea to prime the pump by taking the feed line off and squirting oil in there to make sure.
I think you are correct, I am running without a check valve for now and installed an oil pressure gauge for peace of mind.