On a '73 750 engine:
Looking to advance a cam while using "stock" cam/crank/oilpump gears (not chain)
The timing gear has 52 teeth ... each tooth = about 6.92 degrees.
about 3 degrees or so desired ... about 1/2 or so tooth rotation.
Looks like the helical gears have the spiral in a convienient direction to shim between cam and gear to advance the cam (relative to crank).
Has anyone stablished the shim thickness to degree ratio?
Or I could start looking for an offset pin I spoze. Or figure out how to make one... :unsure:
Alex
Looking to advance a cam while using "stock" cam/crank/oilpump gears (not chain)
The timing gear has 52 teeth ... each tooth = about 6.92 degrees.
about 3 degrees or so desired ... about 1/2 or so tooth rotation.
Looks like the helical gears have the spiral in a convienient direction to shim between cam and gear to advance the cam (relative to crank).
Has anyone stablished the shim thickness to degree ratio?
Or I could start looking for an offset pin I spoze. Or figure out how to make one... :unsure:
Alex