Tuesday, June 11, 2013

Spitfire rear bearings replacement

I remember a long time ago, my british friend Craig had told me that replacing the rear bearings on the spitfire was a bit more involved than the front ones and I shouldn't mess with it unless I know I have a bearing issue, he was right. It's easy once you have done it but deserves some photos to help the next one.

Start by removing the flange and for that you will need the special tool so that you don't bend it. I think I had a post on it, it takes a lot of force and will come out with a bang so be cautious.

Then push the axle out, I used a standard extractor.


Push the old bearings out with drif and hammer but note position and orientation of bearings and seals.


Might as well change the U.J. while we're here

Press or push the bearings and seals back in.

Then push the hub back on the axle. I used the press but it might work with gentle hammering the important part being to push on the inner ring of the bearing so use a tube the right diameter.


Now that's the part where I scratched my head for a long time !!! What is the position of the hub supposed to be ? There is nothing stopping you. In the manual it talks about the position of the grease cap but that doesn't really help. Eventually I realized that when torquing the big nut back on it will push it where it's supposed to be. This is my second attempt, see I only pushed it to over 2 1/2 just enough to be able to thread the nut properly.


Then torque the nut to 110 and it will push the whole thing to where it's supposed to be,

A look at the assembly on the car. Maybe we can put some wheels on soon !


6 comments:

  1. Hi,

    Just found your blog and I appreciate all of the information you have provided. I'm doing the same restore on a 1978 Spitfire and would like to replace the rear bearings as well. Got the same advice as you "Don't touch them unless you have to". Can you tell me where you got the special flange tool? I think now I have to move forward because I'm fairly sure one of my flanges is bent now.

    Thanks,

    David Vaughn

    ReplyDelete
  2. Hi David, made my own.
    Pretty easy if you can weld.
    http://mk3spitfire.blogspot.com/2012/09/spitfire-hub-puller.html
    Otherwise best is try to rent or borrow one from your local club.
    If I had to redo this I would use a finer thread bolt
    Good luck !
    Nico

    ReplyDelete
  3. Thanks Nico I appreciate the link.

    ReplyDelete
  4. Your article is what exactly I was looking for! My press is short so I need to weld some legs otherwise the alternative is hammering, which I don't like... will see! Thank you very much!

    ReplyDelete
  5. Your article is what exactly I was looking for! My press is short so I need to weld some legs otherwise the alternative is hammering, which I don't like... will see! Thank you very much!

    ReplyDelete
  6. Your article is what exactly I was looking for! My press is short so I need to weld some legs otherwise the alternative is hammering, which I don't like... will see! Thank you very much!

    ReplyDelete