Doesn’t want to start after tune up

I'll ask the obvious. Did you verify firing order? verify the cap is on correctly?

Great question! And yes, the obvious one. I made this cheat sheet of the distributor connections when I did the first tune up, and yes, I’ve checked the wires TWICE! (Against the sheet 😬) Take a look and see if I did something wrong. The cap only fits one way with the cutout on the side (I think).

Last time I saw that happened… The person putting on the spark plug wires on the cap incorrectly! When you look down from the top, the rotor turns counterclockwise, not clockwise!!

…make sure that the rotor finger is pointing at the pick up for number one on the cap with cylinder 1 on firing TDC

Did you remove the distributor?  If so, you may have reinstalled it 180° out of sync.  

Also, check to make sure that the outer ring of the vibration dampener has not spun.  

John

Of course, you have heard of the stock distributor pin shearing…. I had a case where it didn’t shear completely, but enough to significantly retard the timing…

So anyway - that’s another thing to look at, but if you do the timing checks, as suggested above, you will find if that’s the problem…

Anyway, my real point in is that a sheared distributor pin doesn’t ALWAYS result in your distributor not turning…. It can still get bound up, and your timing will continue to retard, until it eventually fails completely…. But until it fails, you are chasing a timing problem..  you reset it,  and then a week later you’re having the same paganism!

Good luck!

Rocky