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Thread: Replace rear Discs with Maxi Drive fitted.

  1. #1
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    Replace rear Discs with Maxi Drive fitted.

    Being reasonably handy with a spanner I am going to attempt a rear disc and pad replacement on my 91 Classic. Having been fitted with the rear Maxi Drive axles I am not entirely sure what I am letting myself in for.

    A forum search brings up a few Maxi Drive related threads but nothing with quite the info that I am looking for. Does anyone have any advice on what to watch out for ? which parts should be replaced as part of the procedure (seals etc) ? Special tools ?

    Any advice would be appreciated.

    Cheers

  2. #2
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    Makes no difference if a maxi drive is fitted or not, Just remove the flange and leave half shaft in place , then disassemble hub.

    If you want to pull half shaft to inspect it, as a precaution simply engage maxi drive first, that will hold the sliding clutch dog in place.


    If its just MD axles you have rather than a Diff Lock then its no different to standard, just undo the flange bolts and pull the whole shaft without bothering to undo the flange cap & circlip.

  3. #3
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    Quote Originally Posted by goingbush View Post
    Makes no difference if a maxi drive is fitted or not, Just remove the flange and leave half shaft in place , then disassemble hub.

    If you want to pull half shaft to inspect it, as a precaution simply engage maxi drive first, that will hold the sliding clutch dog in place.

    If its just MD axles you have rather than a Diff Lock then its no different to standard, just undo the flange bolts and pull the whole shaft without bothering to undo the flange cap & circlip.
    Thank you, I had no plans to remove the half shaft. Does that mean that I will need a 54mm spanner/socket for the flange cap ?

  4. #4
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    As Goingbush said, makes no difference to the complexity of the job having MD axles.

    This is a general proceedure based on what I do, others may work differently.
    First remove the old pads, then caliper and hang it on some wire.
    Yes you can undo the MD centre bolt and remove the circlip - then undo the 5 flange bolts and remove flange. You will then see the first bearing retainer nut - flatten out the lock washer then remove it with your 54mm socket/tube wrench - pull the washer then unscrew the second bearing retaining nut, then the thick washer, then the outer bearing. Then pull the rotor/hub assembly off.
    Flatten out the lock washer and bend it in a different place when reassembling.
    You don't necessarily need to touch the seals, however, I like to given all the trouble am going to for the job, may as well.
    For reassembly, if you are going to keep the bearings and repack (depending on the age of the bearings and grease, but its always nice to clean and use new grease), might be prudent to get a couple of new seals for the hub - cheap way to keep things clean and water/grease tight - the old seal might probably get manked when prising it out.
    Also before you start the job, get one or two sets of bearings for the hubs - nothing worse than on a Saturday afternoon finding that the bearings you thought were just fine are all marked up and ready to go bad. If you don't use them you have spares for the road.
    if you are at a Rover shop or ordering parts also get some of the thin flange gaskets to seal the outside flanges once you are done, or make some, or as others have done use a form a gasket product, but I prefer a paper one.
    Brake Reassembly. Check the calipers for leaks, carefully clean the pistons with brake cleaner before pushing them back in with a C clamp, you don't want to be pushing hardened crap past the seals. Obviously check the reservoir level doesn't get too full when pushing back. Install the caliper first then slide the pads into place, much easier to get the caliper on and bolts aligned that way.
    Depending on your calipers, if it uses split pins as pad retainers, have some new ones on hand. I think the 91 has pins with springs and small circlips - either way, have a look and get some before you start.

    Good luck, its not a difficult job and is really nice to do it yourself.

  5. #5
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    Quote Originally Posted by Spel1 View Post
    Good luck, its not a difficult job and is really nice to do it yourself.
    Much appreciated, thanks for the information. A quick call to Mario at Roverlord is now in order as I believe that he is back today.

    Cheers.

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