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rear brake drum install 62 pv544 444-544

posted by  deed on  Wed Nov 22 01:17 CST 2017
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Hello new member and have never posted to anything. Hope i can get some help. I removed the rear brake drums on my new to me '62 pv544 and replaced shoes and slave cylinder but now can't get the drum back on all the way. seems like the axle taper is larger than the drum taper so will not go on. any ideas or solutions would be helpful.

thanks in advance








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    rear brake drum install 62 pv544 444-544

    posted by  james_a_sousa on  Sat Nov 25 14:04 CST 2017
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    last visit: Thu Oct 23 18:51 CST 2014
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    Did you measure both axles and drums? Perhaps they are different sizes.








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      rear brake drum install 62 pv544 444-544

      posted by  deed on  Sat Nov 25 17:36 CST 2017
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      measured both axle and drum. i.d. on drum is aprx. .60mm smaller than the o.d. of the axle. the same for both right and left side of car. can install drum all but 3/4 in. from backing plate.








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        rear brake drum install 62 pv544 444-544

        posted by  Volvo From Heck on  Sat Nov 25 18:30 CST 2017
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        last visit: Mon Oct 13 20:56 CST 2014
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        It's very common for the drum to be reluctant to come off--enough so that even with the puller exerting great pressure the drum wont budge--and yet left overnight it can launch itself off.
        You have not mentioned anything regarding the handbrake cable which also must be left slack. -- Dave








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    rear brake drum install 62 pv544 444-544

    posted by  derek uk on  Wed Nov 22 06:04 CST 2017
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    last visit: Fri Oct 24 12:33 CST 2014
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    This problem tends to occur when the key is a bit to far into it's slot. Make sure that both the key and the slot are free from burrs so that it isn't forced inwards as you try and get the drum on. A little patience help when you are doing the fit. Don't be tempted to try and force the drum on with the nut. Everything will jamb up and then come loose when you drive it.








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      rear brake drum install 62 pv544 444-544

      posted by  deed on  Fri Nov 24 16:51 CST 2017
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      Thanks again for your response. I tried putting the drum on without the key in and drum stopped at the same point. I then measured the axle and then the drum..the drum is .52 to .60mm smaller than the axle. Drum was hard to pull off, but it was on the axle. I'm confused. is there some other thing I'm missing.








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        rear brake drum install 62 pv544 444-544

        posted by  Ron Kwas on  Fri Nov 24 20:10 CST 2017
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        last visit: Fri Oct 24 04:03 CST 2014
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        David;

        I saw you replaced Wheel Cylinder and Shoes, but I didn't see where you backed off the Adjuster yet...maybe you're just hung up on the Wear Lip:


        See also: http://www.sw-em.com/Brake_Drum_Notes.htm

        Good Hunting!








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          rear brake drum install 62 pv544 444-544

          posted by  deed on  Sat Nov 25 11:16 CST 2017
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          Adjusters are backed off all the way. and there is no wear lip on the drum. the axle shaft is .60mm larger than the sleeve bore on the drum. Drum was extremely difficult to remove. Wonder if previous owner used wrong drum??? the drum came off so it should go back on i should think.








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            rear brake drum install 62 pv544 444-544

            posted by  Ron Kwas on  Sun Nov 26 06:34 CST 2017
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            last visit: Fri Oct 24 04:03 CST 2014
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            David;

            I agree...unless there is some dark magic going on here, that which was once together, then disassembled (only...and not bent or somehow distorted in the process), should be able to be reassembled!

            The axle to Drumhub joint is conical, so I don't know how or where you are measuring it, and by saying it is undersized by single number, are you implying it is undersized by that amount all along the cone?...I can't believe that either...I suspect something is not quite right with your method or description...perhaps you should post a few pictures, or maybe a video, including of how you are making those measurements...we would more easily be able to see something unusual...

            Questions:...is this the first time you have done a Drum removal/replacement? (do you have previous experience?)...what kind of puller did you use?...was it one of the approved pullers? (see: http://www.sw-em.com/Brake_Drum_Notes.htm#Preferred_and_Approved_Puller_Designs ) ...(or perhaps Drum was distorted by a force applied wrongly by an unapproved puller). We need Details!

            Good Hunting!








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              rear brake drum install 62 pv544 444-544

              posted by  deed on  Sun Nov 26 13:59 CST 2017
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              Thanks for the input Ron. This is not the first car I have worked on. That was a 31 Model A....HaHa That said I think you may be right on with the warped drum idea. I used a large three armed puller and may have concave the drum making the drum appear to not have seated all the way. Going to buy a new drum and give that a try. Wish I would have spent the $100 on the volvo puller first.








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      rear brake drum install 62 pv544 444-544

      posted by  deed on  Wed Nov 22 17:27 CST 2017
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      thanks for the info. I'll try to put the drum on with slot lined up without the key and then insert the key. hope it works as I would love to drive the car runs great just does not stop.








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      rear brake drum install 62 pv544 444-544

      posted by  planetman on  Wed Nov 22 10:28 CST 2017
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      last visit: Fri Oct 24 09:29 CST 2014
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      Did you install the key correctly?

      The key should be installed after the drum is properly seated.

      Also make sure you install the key in the right direction.

      The notched side goes in first with the notch facing the axle shaft.
      --
      Eric
      Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
      Torrance, CA 90502
      hiperformanceautoservice.com or oldvolvosonly.com







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