Can I hire a Drive hydraulic shaft puller?

Discussion in 'OT (OFF Topic) Forums' started by brucemillar, Feb 3, 2019.

  1. brucemillar

    brucemillar MB Club Veteran

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    My X5 (E53 - 4.8is) had a front drive shaft fail at the outer (hub) CV joint. This is a fairly common part and is considered maintenance. A few weeks previously the passenger side failed and was replaced in less than 30 minutes. Unfortunately we had to wait on a replacement drivers side part to be sourced, so could not do both at the same time.

    I called up my "usual" Mobile Mechanic, who I am rather dependent on, since I got sick. We agreed that he would replace the entire shaft (Hub to Diff). A new shaft arrived (£80+) and we were ready to go.

    Two hours later my mechanic tells me that he cannot get the old shaft out of the diff? It is held in place by a "Slip Ring" and is removed by brute force which compresses the ring inside the diff.

    No amount of force will release it and we are stuck (literally) with the shaft in the diff.

    To date we have tried:

    1. A pry bar between the shaft and the diff casing.
    2. A large hammer to the shaft knocking it away from the diff casing (trying not to damage to damage or break the diff)
    3. A Slide Hammer on the hub end of the shaft.
    4. Fabricating a bracket that screws into two drilled holes, that my guy put into the shaft and inserted bolts to attach the slide hammer to. This just bent the fabricated tool.
    5. We are now in the process of making a stronger bracket in the hope that it will work. But I have little hope.

    I spoke to my friendly guy in the local BMW place. he tells me that this is a known issue and our order of removal almost mirrors theirs.

    They do not have a specific tools but use whatever they can make up when it is required.

    He did say he has never seen a diff break doing this??

    He suggested:

    1. Removing the other shaft and pushing a bar through, then whacking it, in the hope that it pushes the stuck shaft out.
    2. Dropping and dismantling the diff (this is a hell of a job) and not one he would want to try.

    I have attached a couple of pics of the bracket my chap made up for your perusal.

    [​IMG]

    [​IMG]


    I am thinking that hiring a "Hydraulic"puller may do the job? Has anybody got any experience of these beasts. Please bear in mind that breaking the diff casing is not an option due to cost (£4k)

    Whatever we do, we do not want to break anything if at all possible.

    My other option is, bite the bullet and drive the car (I am told it can be driven gently) to my local BMW independent and pay them. They will not be cheap, but I need my car back. I spoke with them (above) and they are none to happy, as we have already played with it.

    Oh. Leaving the diff end of the shaft in situ and attaching a new outer is not an option as my guy drilled holes in the inner end, so it will be weakened now?

    Any help, as always is greatly received and appreciated.

    Bruce
     
    Last edited: Feb 3, 2019
  2. Pontoneer

    Pontoneer MB Club Veteran

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    How about a longer pry bar ?

    Like putting a scaffolding pole over the short one ? Or not feasible to get in with it ?

    Maybe somewhere like HSS hire centre would have something?

    Search Hydraulic

    Another thought ... are you friendly with anyone at your local fire station ?

    They will have hydraulic rams and spreaders
     
    Last edited: Feb 3, 2019
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  3. Pontoneer

    Pontoneer MB Club Veteran

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  4. Pontoneer

    Pontoneer MB Club Veteran

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  5. toolman1954

    toolman1954 Hardcore MB Enthusiast

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    Bruce,
    Years and years ago, I made a tool for pulling driveshafts out of FWD diffs. I can not even recall for what vehicle I made this and it is still somewhere down my cellar back home. Please do not laugh at my drawing, I did manage 4 /100 for Technical Drawing at school.
    Anyway, it is a simple heavy duty plate with a round cut out and with some round bar welded on to provide a fulcrum point. Slip the round end under the drive shaft, and whack the other end with a 4lb hammer until the shaft capitulates. I may well have put some more steel plate under the fulcrum to protect the diff, too long ago now to remember.
    I also found this on you tube :--


    Steve.

    S5032859a.jpg
     
  6. OP
    OP
    brucemillar

    brucemillar MB Club Veteran

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    Steve

    I like your drawing(s). I love the video. It looks from the video that the sharp crack shocks the clip. That has to be the way to go. I have sent your post and link to my mechanic. We will try and see how it goes.

    Thanks for looking, reading and replying. Just what I needed.

    Bruce


    Sent from my iPhone using Tapatalk
     
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  7. OP
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    brucemillar

    brucemillar MB Club Veteran

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    Derek

    Looking at Steve’s (Toolman) video is interesting. We shall try this first. If that fails then it is the hydraulic hire shops, then.......

    Thanks for your help. Fireman’s spreaders would probably do. But it does look like a sharp shock over a gentle spread my work better?

    Here’s hoping.

    Bruce


    Sent from my iPhone using Tapatalk
     
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  8. toolman1954

    toolman1954 Hardcore MB Enthusiast

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    Bruce,
    Further to my rantings above, here are some proper Drive Shaft removal tools, the one on the right being for SAABs (200 Euros for that one !). The other are USA made, Kent Moore.
    I confirm that it is a short sharp shock that frees off the driveshaft, rather than a slow pull.
    I know my lash up tool does not look much like the proper ones --- but it worked.

    Steve.


    driveshaft removal tool | eBay






    [​IMG][​IMG]
     
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  9. OP
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    brucemillar

    brucemillar MB Club Veteran

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    Steve

    Many thanks for your help here.

    Things got better then a whole load worse.

    1). Using Toolmans video with the Chain & Wrench the shaft popped out first time & with the old slip ring still on the shaft. Delight,exhuberation, hugs and back slaps.

    2). Problem we can see that something? Has dropped inside the diff stopping the new shaft sliding in. Whatever it is floats about but should not be there. We now believe it is a planet gear?

    3). So now I have had to order up a second hand diff from eBay. Big money.

    Dropping and opening the old diff to find what is broken will not help me here. I think it’s probably busted a gear or a bracket or both. I have no idea what holds these gears in place. So we will replace the entire diff in one hit in the same day.

    It’s that or give up. I’m not about to give up as it’s a great car.
     
  10. grober

    grober MB Club Veteran

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