09-19-2018, 08:58 AM
Join Date: Sep 2017
"Engine gets hot the knocking goes away"
If you're asking for ideas, I would look elsewhere besides the distributor.
Any distributor with bushings worn enough to allow the rotor to hit the spark plug terminals won't generate a spark, since the gap at the Hall sensor would be too wide to trigger a signal.
I've had this issue with a worn Sammi distributor that would sometimes run, sometimes not.
Although it may feel like the knock is coming from the distributor, I would suspect piston slap from #4 cylinder (my best guess without actually being there), possibly from a broken piston skirt, since the knock goes away as the engine warms up and internal parts expand.
As for reinstalling the distributor:
Rotate the crankshaft until the pointer on either the front pully, or, flywheel point to TDC. That's going to put both #1 and #4 at TDC. 50/50 chance #1 will be on compression stroke.
Install distributor with rotor pointed to #1 plug terminal and wires reattached in the proper order.
Try to start it up.
If you get nothing, pull distributor and turn rotor shaft 180 degrees, reinstall and try again.
One of those distributor positions should be close enough to get you going, until you can fine tune with a timing light.