I am an oil pump shaft noob

[hornet7288]

My block had the oil pump shaft bearings replaced when it was getting machine work done. From what I NOW understand the bearings come oversized and need to be sanded down a little or something. Well I put the shaft in today and it won't come back out OR move. I know this was a dumb move so I do not need to be reminded of it. Any ideas of how to get it out? Thanks!

 

[hvyman]

Did you Lube it before installing it? I would put the pulley on and pull. Just be careful not to damage the pulley.

 

[hornet7288]

yea it was lubed. I tried putting the pulley on and it still wouldn't come out that way.

 

[CyFi6]

Try prying the shaft out through the j-tube plate hole in the side of the block. Someone i know had the same thing happen and that's how he got it out.

 

[suprarich]

Try wiggling the shaft as a rotating back and forth motion just a few degrees as you pull on the shaft. Yes, the bearing needs reamed to fit after a new one is installed.

 

[hornet7288]

I ended up getting it off by using a pry bar and a 5 lb sledge hammer. Only took 4-5 somewhat light taps. It didn't even damage the pulley. The bearings are still very smooth and were not damaged. Is there any downside to just sanding down the driveshaft itself? This would be easier for me to do than get to the bearings. I would measure the bearings and then measure the shaft and sand the shaft down to get it within spec.

 

[IJ.]

I ended up getting it off by using a pry bar and a 5 lb sledge hammer. Only took 4-5 somewhat light taps. It didn't even damage the pulley. The bearings are still very smooth and were not damaged. Is there any downside to just sanding down the driveshaft itself? This would be easier for me to do than get to the bearings. I would measure the bearings and then measure the shaft and sand the shaft down to get it within spec.

That you can see....

These things are very fragile I'd replace it before running the engine.

 

[hornet7288]

I've seen that some people will sand the bearings down themselves until they can get it in. Is this ok to do?

 

[IJ.]

I'd use 1200 wet/dry with crc5-56 as lube in a mandrel on a slow drill to try and at least get it a bit round..

 

[hornet7288]

yea that's my problem is I don't have stuff like that. I wish there was a machine shop closer to me. I pretty much have just enough tools to get the engine together. The closest shop to me is probably 1.5 or 2 hours.

 

[IJ.]

Piece of steel rod, take a hacksaw and cut a slit length ways for an inch, cut the wet/dry into strips slightly wider than an inch, slide a strip into the slit, wind onto the shaft then when halfway wound on add another strip, repeat till you get close to the desired size, squirt with the CRC then in a slow drill (cordless works well) spin it in the bearing testing the shaft often.

 

[suprarich]

Sounds like I need to post a video or picture of the tool I made to size those bearings IJ. Toyota must have changed the nominal ID size of these bearings within the last year because I have never seen so many issues in the last 10 years as I have just this year alone.

 

[IJ.]

I think most of the issues are people burring the lip on installation Rich...

 

[suprarich]

Yes, could just be that more and more people are trying to install the bearings themselves.

 

[IJ.]

Without the correct driver

 

[CyFi6]

When I installed mine, I used the TaiHo bearings that NAPA sells. There were no burrs on the end of the bearing but the shaft was still extremely tight. Rich I would love to see that tool you use to cut them down.

 

[suprarich]

I just made a ream out of an old oil shaft so it cuts both bearings at the same time. Made a driver too that has both sizes on one shaft. I will post some pics after I get around to taking some.

 

[supraguy@aol]

yea that's my problem is I don't have stuff like that. I wish there was a machine shop closer to me. I pretty much have just enough tools to get the engine together. The closest shop to me is probably 1.5 or 2 hours.

Where are you in Atlanta? There are machine shops all over the place. I just dropped my motor off in Canton.

 

[grimreaper]

Isn't Bryan maloff (sp?) in the northern Georgia area?

IJ or Rich, when the new bearings are installed, is the bearing still round? Thinking out loud that if the bearing fits on the shaft before install, and doesn't after, the bearing is getting squeezed in the block. Does the force of the block on the bearing "egg" it?

 

[IJ.]

There will be a degree of "Crush" when the bearing is pressed in but it "should" remain round.