Oil pump drive shaft bearing replacement

[ca91mkIII]

I am in the middle of rebuilding my 91 7M motor and I am wanting to replace the oil pump drive shaft bearings and I am wondering if anyone has done this before and what kind of a tool did you use to remove/install the bearings?

 

[IJ.]

If they're not Sloppy/gouged don't bother, you'll do more damage changing them than you'll prevent!

 

[TweeT91109]

If they're not Sloppy/gouged don't bother, you'll do more damage changing them than you'll prevent!

+1 No reason to touch them unless they are damaged.

 

[supraguy@aol]

LOL- agreed.
I replaced mine, but it was a serious pain in my butt, and I had to replace one of the replacements because I gouged it so bad.
I DID learn however, that it's a bit easier(but not much) to fit if you freeze the bearings for a while. Then you have to polish them to the right size once they're in.

 

[ca91mkIII]

They have to be replaced now because I have torn the outer one up trying to get it out. What makes me nervous is how soft they are. Especially since I read that hot tanking the block for engine machining damages the bearings.

 

[7M4EVR]

I'm having my machine shop do mine

 

[supraguy@aol]

^^^
Definitely worth the minor added expense