Oil pump drive shaft question

The pump shaft OD is .485 (measured with a mic and a caliper) If you drive the bushing in and ball broach the ID then you should be good to go. Ball broach would be a .485 diameter ball on a shaft that you can tap through the bushing. They have these for valve inserts so I figure they would work as well on a bushing. A spec I saw for a bronze bushing up to .750 is .0005 clearance. A 31/64 drill bit @ .4844 ran in reverse on a cordless drill at a slow speed could ream out that hole pretty freaking close. Then follow up with a expanding ream to .4855

Thanks for the input! My dad told me the same thing about running a 31/64 bit through it.

I just installed the bushing on my 360 magnum. I used a Durabond one (3.99$ from summit) and drove it in with the new shaft with some assembly lube on it. No need to use the tool, it fits perfectly! I guess it comes prefitted...


no, it does not come prefitted, but that´s exactly the way i did - putting it in with the intermediate shaft. Worked good, fits good. Not that i say "this is the best way to do" but it worked for me without any prooblems! If i were you i´d push the intermediate shaft trough the bushing with some oil - and see if it works. If not buy a new bushing....and try it again!

Now, you guys pressed the bushing onto the intermediate shaft, before installing it in the motor? How exactly does this address the problem? Because the shaft binding inside the bushing is the problem I'm dealing with.

Tomorrow, I've got a lead on a machine shop that might be able to me, and if that doesn't work, I've got a cousin who can borrow the actual install tool from a friend and mail it to me for use. I still would like to resolve this in house if I could, I appreciate ALL of the input.