Dangerous Doug When the housing is all the way flat on the manifold and you have the base timing setup. I use #1 cylinder as setup. Make sure you have the phasing set for rotor to be in the middle on #1 contact on the distrib cap. I have this done by using an old MSD cap and using a dremial tool to open a slot between the coil terminal and the #1 terminal for the spark plug wire. I mark the inside of the distributor with a paint mark. Outside the distributor I etch a small line in the housing and the intake manifold. This way they both line up. If something changes with the timing, this is your first basic check of the 2 marks lining up. If the outter marks are not alignment, the housing moved and the hold down may not be tight enough. If the inner mark is off, possible broken pin in the gear. Crank motor and see if rotor spins. If you can spin rotor my hand, you have problem in motor. If rotor doesn't spin, oil pump could be seized, gears stripped between camshaft and distributor gears, bottom line enternal work. Hope this helps good luck. Ps wife said you have to regulate time better between her and mistress Rick L.
The same way if you where to remove distributor
Threaded Mode
