Martin-Brighton-uk
Supercharged
I've seen posts in some threads on here that the exhaust cam clearances increase rather than decrease with miles ridden. Is that right? Yes the exhaust cam clearances are greater than the intake, but both valve wear in the same way don't they, snap closing each time? So the statement that intake valve gap reduces and exhaust valve clearances increase is not correct? Just wanted to double check as I am doing my clearances now and I aint a mechanic.
I understand that the wear of the shim itself could in theory balance out the wear on the valve head. As the valve head wears and the clearance gap to the cam lobe decreases, the shim is also wearing, so if the shim wore at the same rate as the valve head, the total clearance would be self correcting?
I understand that the wear of the shim itself could in theory balance out the wear on the valve head. As the valve head wears and the clearance gap to the cam lobe decreases, the shim is also wearing, so if the shim wore at the same rate as the valve head, the total clearance would be self correcting?