P100 rear axle drums , are they f**king welded on or what ???!!! - Reply to Topic
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Topic Review (Newest First)

  • 08-04-2010, 16:09
    40Stude

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Quote Originally Posted by blackjack View Post
    Sounds like someone has replaced the rear brake shoes on a 2CV at some time in his past......


    Been there, got the t shirt. Just how big is that friggin nut?
  • 08-04-2010, 10:39
    Ratty

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Trouble was there's nothing to attach the slide hammer too Dave , unless you had a really big puller to fit the outside of the drum and pushing on the centre of the halfshaft , and if you had that I guess you'd use the really big puller you already had
  • 08-04-2010, 04:58
    fall-apart-dave

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    So it wasn't slide hammer FTW then? There goes my comission on world wide sales of slide hammers!
  • 06-04-2010, 01:34
    Ratty

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Quick update for you !

    Finally had a chance to get back at the job this weekend thanks to my good chum Phil and his dry smooth-floored barn (As opposed to my wet gravel car park) . No sign of any spire clips or otherwise on the studs , tried some release spray and some heat all to no avail so went with the tried and trusted method of beating the **** out of them with a drift and hammer from the rear

    This earned us about 5mm of outward movement , which was disappointing considering the bruised fingers from upside-down hammer weilding so we decided to pop the halfshaft out for a better look at things . Lo and behold this revealed a 5mm gap between the hub face and the drum , just enough to get a pry bar in and pop the bugger off the shoes , result !

    So , one side done with only minimal searching around for parts that go ping and we jack the other side up and use the same method . Well the drum couldn't wait to get off the hub , almost fell off on its own it did , fantastic thinks I ! Until I notice that the reason it slid off so easily was because everything was soaked in brake fluid that had escaped from the leaky wheel cylinder hiding inside . Arse . And I didn't have a new wheel cylinder to hand and we couldn't get one because it was 4pm on a Bank Holiday Sunday . Double arse .

    Hey ho , I'll get that sorted tomorrow I guess then we're rolling (And more importantly stopping) again . So if you need to get the drums off a P100 rear axle thats how you do it ;

    Wheel off

    Halfshaft out

    Tap from the back to open up a gap between the drum and the hub

    Prybar in that gap and off she pops


    Hope that helps someone else do the job without all the pain
  • 30-03-2010, 20:09
    Ratty

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Hopefully having another go this week if I can get near someone with some bottles , thanks for all the advice peeps
  • 30-03-2010, 18:12
    fall-apart-dave

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Quote Originally Posted by Mad Mark View Post
    Heat, thump, heat, thump, heat, pull!

    When you have it off, file out the centre until it is a sliding fit before replacing. You may have to do the stud holes as well. I did this on some Ford in the past, Granada, I think.
    The problem I had was the edge of the centre hole was rolled outwards so as I pulled the drum it 'turned' the lip inwards and held tighter.

    Good luck.
    ooohhh... One of my Bugs di exactly that... splines on the rear drums had rolled and just dug in, made worse by a spring having come off the shoes so they rolled when I pulled the hub and bit.

    A slide hammer is what you need, I bought one and it has MORE than paid for its self.
  • 29-03-2010, 16:41
    Mad Mark

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Heat, thump, heat, thump, heat, pull!

    When you have it off, file out the centre until it is a sliding fit before replacing. You may have to do the stud holes as well. I did this on some Ford in the past, Granada, I think.
    The problem I had was the edge of the centre hole was rolled outwards so as I pulled the drum it 'turned' the lip inwards and held tighter.

    Good luck.
  • 29-03-2010, 16:28
    scooder

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Quote Originally Posted by Ratty View Post
    Hi Martin , can't say as I spotted any clips bt I'll hopefully get a chance for another look later this week and I'll keep an eye out . I take it by spire clip you mean some sort of circlip ?
    The spire clips are flat and thin like the sort of thing that you put behind a fibre board trim panel for a self tapper to screw into, only these slide over the stud's to hold the drum on when the wheel nuts are undone. Yes the drum should be a slightly loose fit, but as you have found out they like to sieze on, and quite often the spire clips have long gone.
  • 29-03-2010, 16:07
    chris

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    deffo just the case of a bigger hammer needed i think fella
  • 29-03-2010, 14:25
    blackjack

    Re: P100 rear axle drums , are they f**king welded on or what ???!!!

    Quote Originally Posted by Ratty View Post
    Al ; as always a well thought out and considered reply , I consider my **** removed

    Dave ; Not that I could see mate , there's naff all on the face of the drum other that the half-shaft gubbins in the middle . I too can't imagine the job's this much of a pain , its not like it was designed by Citroen or anything , sure I'm missing something simple though ...
    Sounds like someone has replaced the rear brake shoes on a 2CV at some time in his past......
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