Bearing extraction Q

[advarp]

Hi there

started with changing a gasket, nowe I am in a kinda full transfer case rebuild... Early FJ type one piece Mar 79 4 speed...

Anyway, a maybe silly but important question: The fj40 repair manual mentions the press and press plates everywhere. I realised some t/case bearings came off without much effort, no press needed. Do i really need a press or can I gently hammer these out and in using timber and rubber mallet? The difference is very important, the shop asked for $800 to rebuild the tcase, I got a rebuild kit for $240... if I could only change all bearings without a press...

Also, I am at a loss figuring out how to change the needle roller bearing inside the mainshaft of the Tcase. There is a thread abt tcase rebuild but it simply says 'change the needle roller bearing' and shows a pic of it. That's it, it doesn;t tell How - maybe because it is simple ? Then how do I do it ? It is a tiny needle roller bearing sitting inside the shaft. See pic

Thank you

 

[IDave]

Beat it out with a screwdriver

 

[Coolerman]

Rebuilding The 3 SP T-Case

 

[KLF]

When I was doing the split case in my FJ62, I didn't feel like fighting with that bearing, so I took it over to a local tranny shop. Asked the guy at the counter if they could get it out, kinda like a challenge, he said "be right back..." and took it out to the shop. 2 mins later he came in and handed the shaft and extracted bearing to me, no charge.

 

[Azrocks]

I probably wrote the thread you are talking about. I never really finished it. The needle bearing you are talking about was a bear to get out but I did it. I learned the hard way how not to put the new one back in and had to order another bearing.

Here's what I learned.........

1. A dremel with a cutting disc worked to get the thing out. That along with a cold chisel I was able to get it out in pieces.

2. I tried to use a 2x4 to gently tap the bearing in. About half way in the bearing was completely destroyed.

3. On the third try I heated the shaft in the oven and froze the new bearing in dry ice for quite some time. I then went back to the 2x4 block tap method. It went it quite smoothly. Not sure if it was the method or luck but it worked.

Good luck!

 

[texas dogman]

I tried most of these suggestions to no avail. The absoulte best way is with a slide hammer and of course the correct little set of jaws attached to the hammer. Auto Zone has these for rent "free with deposit". The slide hammer kit had the jaw set with it, and it was a perfect fit in to the end of the shaft and grabbed the lip of the bearing with the jaws expanded. Once you have them set, two pops of the slide and out popped the remain bearing race. (I had alread torn the the needles out trying all the other methods stated above)....So, save yourself the trouble and find a slide hammer.

 

[Azrocks]

That sounds like a dream compared to how I got mine out.

 

[advarp]

I tried most of these suggestions to no avail. The absoulte best way is with a slide hammer and of course the correct little set of jaws attached to the hammer. Auto Zone has these for rent "free with deposit". The slide hammer kit had the jaw set with it, and it was a perfect fit in to the end of the shaft and grabbed the lip of the bearing with the jaws expanded. Once you have them set, two pops of the slide and out popped the remain bearing race. (I had alread torn the the needles out trying all the other methods stated above)....So, save yourself the trouble and find a slide hammer.

Holy cr*p!! I thought the answers will be like - 'it's really easy - like that!'

OMG look at this:

I may take the thing to the gearbox workshop and beg the guy there to take it out and put the new one in.. therefore if he screws it he will have to get another one

On the other bearings, is it Ok to just tap the races in gently or will I destroy them ? I have not yet looked at the two needle roller bearings on the idler shaft... waiting for the repair kit, the gbox workshop guy said it comes with an idler shaft - mmmm good, mine is ... shafted... Maybe will post some pics...

Thanks for the answers, good thing I have not started on that bearing.

UPDATE: I took the shaft to the workshop. The guy took out the cage, discarded the bearing needles and used a SLIDE HAMMER to pull the rest out. So there ...