It's either that or get a bore sight camera and stick it into the plug hold and wait till the piston head just about reaches the top. That's the top of the compression stroke for cylinder one. Put your finger or thumb over cylinder one plug hole and keep turning the engine until it blows your finger out. Pull the plug out of cylinder one and turn the engine either by bumping it with the starter or by hand. There is a hole where the oil pump pickup comes through and its on a slight angle. Down there should be a boss cast into the engine where the distributor sits. Shaft is 11/32 in size so I used a nut driver to reach down into the distributor hole. I am not sure how it is on the 390 engine, but I have already removed the distributor on my 460 in my 69 bird and the oil pump shaft too came out with the distributor. You defiantly do not want that tumbling around when your engine is running. ![]() Finally hope the small slide on ring around the oil pump pickup didn't slide off and fall into your oil pan either. ![]() If you have to remove the distributor be very careful as the oil pump pick up will sometime get stuck in the hex slot in the distributor and come out with it.ĭO NOT LET THE OIL PUMP PICKUP DROP! Otherwise you will have to either drop the oil pan or hope you can fish it out with a magnet. You will have to take something and rotate the oil pump pickup shaft then try and align with with the distributor as you get it to slot back in with the teeth on the cam gear. Also the oil pump pick up shaft will almost never line up with the Distributor after you remove it. Click to expand.This I completely agree with! Do not rotate the engine with the distributor out or you will have to turn the engine by hand or bump it with the starter until it lines up again with #1 cylinder.
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