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Clutch Release Bearing

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  • NeilR
    replied
    Too late, I dismantled it this morning.
    It was just made from scrap pieces of Dexion Racking & M8 threaded rod, nothing special at all.

    Leave a comment:


  • sujitroy
    replied
    Originally posted by NeilR View Post
    No secret, just plenty of practice doing that sort of thing over the last 50 years.

    Pre made a cradle that sat on the trolley jack to hold the box at the correct angle.
    Saves a lot of time and messing around. I also have 2 inch 3/8 studs in those two locater holes.
    Gearbox can't fail to go on in correct position.

    Neil.
    Please share a photo of the cradle.

    Leave a comment:


  • NeilR
    replied
    No secret, just plenty of practice doing that sort of thing over the last 50 years.

    Pre made a cradle that sat on the trolley jack to hold the box at the correct angle.
    Saves a lot of time and messing around. I also have 2 inch 3/8 studs permanently fixed in those two locater holes
    in the adapter plate. Gearbox can't fail to go on in correct position.

    Neil.
    Last edited by NeilR; 11 February 2021, 17:56.

    Leave a comment:


  • sujitroy
    replied
    Hi Neil. What's your secret to doing all that work two hours? Can u make a YouTube video next time?

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  • NeilR
    replied
    Well, I have changed the release bearing and the cover.
    (2 hours to replace including dropping off the axle stands & tidying up).

    It seemed that Taiwanese 'Powertune' bearing had worn the cover fingers quite badly in 2.3k miles,
    so changed if for one from Robsport (came next day - well under 24 hours), the bearing also arrived today,
    again from Robsport.
    This time it's a Japanese, made in Japan, Koyo RCT52S (Toyota Landcruiser).
    The profile is better than the Japanese NTN which gave me the really heavy pedal, but still not the same as
    the RHP as the contact point is slightly further further out - probably 3-4mm.

    End result is pedal is heavier than before but nothing like as heavy as the NTN was, I shall put up with it now.
    Most of all - IT'S QUIET ! and smooth in operation.

    So, maybe I was unlucky with the Powertune bearing, I dunno, but I will never fit one of those again.

    Neil.

    Leave a comment:


  • NeilR
    replied
    It is a Quinton Hazel I have (curved fingers). I had no issue with the smoothness of operation, even when it was squealing.

    It was just a poorly lubricated bearing.

    Neil.

    Leave a comment:


  • Phil S
    replied
    there used to be 2 main clutch supplies back in the days I was laying under gearboxes, borg and beck or quint and Hazel. one had flat fingers on the cover the other curved, whatever shape the fingers were you needed the opposite shape release bearing for smooth operation

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  • NeilR
    replied
    Well, got the box off. Only took 1 & 1/2 hours.

    It would seem the problem bearing (Powertune) was lacking in grease, no wonder it didn't last.

    Neil.

    Leave a comment:


  • NeilR
    replied
    Hmm, interesting offer for me to consider.

    Only concern I would have with that is how have they been stored, RHP closed in 1989.
    So they have 30 year old grease in them, what state is that in now I wonder, still soft grease or turned to treacly tar ?.
    Still, I will PM you for a price of one.

    Neil.

    Leave a comment:


  • Tonywhite
    replied
    I have some nos rhp bearings if you would rather fit new

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  • NeilR
    replied
    Yes, I'll pm later when back on pc.

    Neil.

    Leave a comment:


  • DJT
    replied
    I have this used RHP release bearing, which I would have removed from my MOD Stag. I wouldn’t have kept it if it was faulty. Any use?

    126CF985-BA92-4A75-991C-12C879915648.jpeg65ED8C20-F54C-48AE-8DFF-F88102DAE34A.jpeg

    Leave a comment:


  • NeilR
    replied
    Having an arc shaped face as opposed to semicircular one in "Heavy Duty" bearings.
    The contact point is closer to the centre, gives a lighter pedal feel.

    Not sure about covers requiring different shaped bearings - all suppliers do only one or the other.

    Taiwanese Powertune is all that's available in the original profile.

    Neil.

    Leave a comment:


  • DJT
    replied
    Peter has quite a lot of info about his Powertune release bearings:

    http://www.ldpart.co.uk/shop/shop.ph...1bda4543365c96

    Leave a comment:


  • Lingen
    replied
    Neil.
    Can you explain what you mean by the "Correct profile". I think there are at least two types of clutch cover available, each one requiring a different shaped thrust bearing to operate correctly.
    Mike.

    Leave a comment:

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