fiatfan
VIP MEMBER
- Joined
- Aug 9, 2015
- Messages
- 486
That looks like it has suffered from foreign particles grinding away twice tappet and bore!
Personally I’d say it was unserviceable. But I’d also expect the bore it ran in to look similar. Have you checked the tappet bore in the barrel?
Hopefully yours will be like mine... badly scored.
Why hopefully? Because then you have the perfect excuse to buy JS BSA followers (the fixed bronze tappet block doesn’t care if its in a scored bore)!
I have some scored lifters, but not like yours. Your lifters appear to have been 'rocking' in the bore, scuffing top and bottom and not middle. I suggest you inspect the lifter bores to see what they are like.