Morning Greg,
The barrels came with the bike 39 years ago. My father had them bored over by 0.020" and fitted new pistons. I believe they were original to the bike. I don't know if he checked to see relation between the rings and the oil feed hole. I do recall him lapping the head to liner and checking to make sure the head didn't contact the muff while doing it. Interesting thought about the liner being cracked radially. I hadn't considered that. I immediately jumped to it being an issue with the head. When you said about buying 6 new barrel/muff assemblies with matching pistons, I thought that must have cost a fortune, but checking the VOC Spare Co. They're quite reasonable. Do you buy them already bored and the oil hole already drilled or no?
Morning Albervin,
I also use the bridge as a gauge for my oil level. I try to keep the oil at the level of the bridge or just under it. I buy quality oil there isn't any economy in buying cheap stuff.
I'll update as I find out more. Thanks for the all the input.
Steven
The barrels came with the bike 39 years ago. My father had them bored over by 0.020" and fitted new pistons. I believe they were original to the bike. I don't know if he checked to see relation between the rings and the oil feed hole. I do recall him lapping the head to liner and checking to make sure the head didn't contact the muff while doing it. Interesting thought about the liner being cracked radially. I hadn't considered that. I immediately jumped to it being an issue with the head. When you said about buying 6 new barrel/muff assemblies with matching pistons, I thought that must have cost a fortune, but checking the VOC Spare Co. They're quite reasonable. Do you buy them already bored and the oil hole already drilled or no?
Morning Albervin,
I also use the bridge as a gauge for my oil level. I try to keep the oil at the level of the bridge or just under it. I buy quality oil there isn't any economy in buying cheap stuff.
I'll update as I find out more. Thanks for the all the input.
Steven