Oil pump drive ???

[Newbomb Turk]

That's funny, My son and I are going through the same thing on one of his costumers cars. It's a 351 Cleveland, two Holley Sniper distributors, one drops all the way in no problem. The other doesn't even make it to the o-ring seal before it locks up. Every thing measures the same on both of them, one fits the other doesn't. Guess we are going to be checking the run out on that next, just so we know. Thanks for the heads up Newbomb Turk.

Wow! That is interesting. Like I said I’ve never seen this before. I’ve never even heard of it. Thanks for letting us know it’s not just a Chrysler thing.

 

[Max1196]

It's a 351 Cleveland,

Newbomb, I'm momentarily going to but-in here, Can you check the "hex" size on the end of the distributor, Is it a .250 diameter or a .312 diameter? Now back to the bent Dodge stuff..

 

[Newbomb Turk]

Newbomb, I'm momentarily going to but-in here, Can you check the "hex" size on the end of the distributor, Is it a .250 diameter or a .312 diameter? Now back to the bent Dodge stuff..

I measured it yesterday and it was .310 and a couple of tenths across the flats.

I measured across the points but I forgot what that was. I’m going out there in a few minutes to put the pan back on so I’ll measure that again and report back.

 

[Vertex_Jeff]

Maybe when the gear was pinned on, it got bent? Someone using a press with a haphazard support/ tooling jig or whacking the pin with a hammer.......

 

[NC Engine Builder]

I just ran into the same thing on a gen 1 392 I'm building. But on those, they sell you a shaft and gear separately that you have to press the gear on and then pin it. It's a retrofit deal to put a LA pump on the early hemi cap. Anyway, the hole in the block was only a few thousandths bigger than the shaft, so it was rubbing. I had to straighten it as well. What are the odds

 

[Newbomb Turk]

Maybe when the gear was pinned on, it got bent? Someone using a press with a haphazard support/ tooling jig or whacking the pin with a hammer.......

It’s possible they bent the shaft when the gear was pressed on.

Once I got it straight I put the dial indicator on the base of the gear and the runout was the same as the shaft so I assume the gear is on straight.

Of course now that I typed that out I need to pull the drive back out, get it back in the lathe and indicate the face of the gear.

Why my dumb *** didn’t do that first baffles me.