when removing old gear had to tap it off. new gear just slides on/off. no wobble but thinking the roll pin will be taking all the oil pump torque . most i have installed I had to press/push on. will this be OK or am I over thinking this?
Frank, as mentioned, too loose. You can put a bunch of punch marks in the area of the shaft where the gear will sit to displace some metal and make a tighter fit or even have the shaft knurled.
I messed with one but didn't succeed in getting it installed right. Don't have a press but it took a LOT of force in the vice to move the gear. Before I tried it, asked a machine shop if they would swap gears for me. They were going to drill the gear out so it would slide onto the shaft. Passed on that deal. Ended up buying another distributor with the steel gear installed. If you have to buy a steel gear you can get a whole stock distributor with the right gear for not much more money. If you're working on a aftermarket distributor, guess you need to do the swap.
The two I did were points distributors I wanted to run fitted with Pertronix units to run in roller motors. No stock application for that.
Yup, same here. When I gave up on the gear swap, the "other" distributor I bought was a $50 ebay HEI with a steel gear. Too bad Pertronix doesn't make the Igniter III to go in a DS distributor -- I had 2-3 of those. Would have made things simpler for me when I was trying to avoid the box. Have since gone to an MSD distributor and 6AL. If I did it again, I'd start there.