troublemaker
Well-Known Member
So here's one for you. I rebuilt a 73 440 about 2 years ago. Mild rebuild. I nstalled a Edelbrock double roller timing chain set.
With #1 @TDC and #1 valves closed(as they should be) the marks on the cam sprocket and crank sprocket did not line up. I was 180 off on the cam sprocket. Mark on sprocket on the top. The crank keyway was at 2 o'clock and the crank sprocket was lined up with the 0 timing mark on top. So I lined up # 1 and ran my firing order and had no problems. The car ran fine for a year or so with the only problem being my wires are 180 off at the distributor. All was good. I just put a new single bolt cam in and thought I would look at it again. I can't figure out why the timing marks don't go head to head. My harmonic balancer is in 0 and I'm at TDC on #1 and my cam gear is still lining up 180 off. Any ideas?
With #1 @TDC and #1 valves closed(as they should be) the marks on the cam sprocket and crank sprocket did not line up. I was 180 off on the cam sprocket. Mark on sprocket on the top. The crank keyway was at 2 o'clock and the crank sprocket was lined up with the 0 timing mark on top. So I lined up # 1 and ran my firing order and had no problems. The car ran fine for a year or so with the only problem being my wires are 180 off at the distributor. All was good. I just put a new single bolt cam in and thought I would look at it again. I can't figure out why the timing marks don't go head to head. My harmonic balancer is in 0 and I'm at TDC on #1 and my cam gear is still lining up 180 off. Any ideas?