�67 300HP Distributor Question?

[Joe C.]

Attached are pictures of my distributor (still installed). The first is with cap and rotor removed. Second, shows advance springs removed. Third, with weights removed. Fourth, with weight base rotated to show advance limiting slot.

Do the weights or anything else appear to be modified or non-OEM?

Again, my question is why I'm only getting 16 degrees of centrifugal advance?

Are the springs rubbing or binding on the cam or the weights? Install them so that the shallow section is facing down (rotate them 180* on their longitudinal axis), rather than facing up, as you have them.

You know that 30 crankshaft degrees equals 15 camshaft (distributor) degrees. With the distributor on your bench, rotor removed and everything else assembled, get out your protractor and rotate the upper section by hand. Measure the angle rotated and see where it is being stopped. It appears that there's a very good chance that the heels of the weights are acting as the stops.

[Gerard F.]

Are the springs rubbing or binding on the cam or the weights? Install them so that the shallow section is facing down (rotate them 180* on their longitudinal axis), rather than facing up, as you have them.

You know that 30 crankshaft degrees equals 15 camshaft (distributor) degrees. With the distributor on your bench, rotor removed and everything else assembled, get out your protractor and rotate the upper section by hand. Measure the angle rotated and see where it is being stopped. It appears that there's a very good chance that the heels of the weights are acting as the stops.

Joe,

I think you are right about the springs. The springs on my original, in the picture above, are rotated 180d from the springs in Michael's picture.
Nice catch.

[Michael M.]