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I have found the problem, I think. I'm going to do a leak down to confirm later today. Yes I am slow! I moved out of state and was busy with other bikes. The Norton might have had the wrong specs. 81 lbs pressure both sides dry. So I did a wet test with 2 tablespoons of oil. Shot up to 110 lbs both sides. Should be around 130 I know. Looks like new pistons and another rebore. Bad spec I guess.The fact that the pressures are exactly the same left and righ, dry or with oil, is revealing, any thoughts?Was confusing me cause it was causing oil problems on the right side only. The bike might have 50 miles on it since the rebuild. The pistons are .040 over. The barrels not sure till i break it down. Looking for 060 over pistons, once i measure how big the bore is now. Where can I get the barrels machined in OR?Brian
I have found the problem, I think. I'm going to do a leak down to confirm later today. Yes I am slow! I moved out of state and was busy with other bikes.
The Norton might have had the wrong specs. 81 lbs pressure both sides dry. So I did a wet test with 2 tablespoons of oil. Shot up to 110 lbs both sides. Should be around 130 I know. Looks like new pistons and another rebore. Bad spec I guess.
The fact that the pressures are exactly the same left and righ, dry or with oil, is revealing, any thoughts?
Was confusing me cause it was causing oil problems on the right side only. The bike might have 50 miles on it since the rebuild.
The pistons are .040 over. The barrels not sure till i break it down. Looking for 060 over pistons, once i measure how big the bore is now. Where can I get the barrels machined in OR?
Brian
