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Technical The $3 Banjo Housing Seal Install Tool

Discussion in 'Traditional Hot Rods' started by fourspd2quad, Apr 27, 2020.

  1. fourspd2quad
    Joined: Jul 6, 2006
    Posts: 703

    fourspd2quad
    Member

    It's just a guess on the cost, most of us probably have this hardware already.
    While researching how to install my banjo axle seals I came across some info online
    saying there was a special tool with a long shaft you could buy to drive them home from the wide end of the housing. While I started poking around my shop looking for a way to replicate this I came up with this idea. Rather than bang them in from the inside why don't I draw them in from the outside. This is what I came up with. For all that I know this is an already known method but if not here goes.
    I took a 5/8 bolt, 2 washers and a nut and slipped one washer on the bolt.
    iphone-pics 3988.JPG

    I then wrapped some painters tape around the bolt to mimic the I.D. of the seal. This helps to position the seal and keep it concentric to the bolt shaft.
    iphone-pics 3989.JPG
    Then I lubed up the tape with some bearing grease, slipped on the seal and lubed up the seal O.D. also.
    iphone-pics 39982.JPG
    With my axle housing fixed in a vice I slid this assembly into the axle shaft and fished out the threaded end on the opposite side.
    iphone-pics 3999.JPG
    I then added the second washer and nut and spun it down flush to the axle end. Tightening the nut I could slowly begin feeling the seal draw into the pilot, you can feel when it finds home when the wrench comes to a dead stop.
    iphone-pics 40011.JPG
    Sure beats buying a fancy tool that would hardly get used. Besides I think it is a better method as opposed to beating on the seal.
    Thanks for reading! Stay safe.
     
  2. acme30
    Joined: Jun 13, 2011
    Posts: 175

    acme30
    Member
    from Australia

    Cool and inventive tip thanks for sharing
     
  3. Good start for a Tech-Week. Been ages i believe.
     
  4. 2OLD2FAST
    Joined: Feb 3, 2010
    Posts: 2,853

    2OLD2FAST
    Member
    from illinois

    I thought the dark red coating on the outside of a seal was a sealant to be installed dry ,wouldn't greasing it negate its effectiveness ? Just curious ...
     

  5. fourspd2quad
    Joined: Jul 6, 2006
    Posts: 703

    fourspd2quad
    Member

    You could very well be right but my guess is that just about all of it got removed by the press fit.
     
  6. flatheadpete
    Joined: Oct 29, 2003
    Posts: 9,960

    flatheadpete
    Member
    from Burton, MI

    Smart! I love this kinda stuff.
     
  7. Something I got into several years back. I found some replacement seals for that job actually didn't fit the Axle shaft properly. Part number was a cross over but not right. The I.D. of the seals were large enough they didn't fit snug on the shaft. Hope you did a test fit. Gear lube on new brake shoes really sucks, almost as bad as taking things apart to replace new seals.
     
    David Gersic likes this.

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