R12 gear linkage
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Thread: R12 gear linkage

  1. #1
    1000+ Posts REN TIN TIN's Avatar
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    Default R12 gear linkage

    I had the pleasure of having the Silentblocs in the gear selector of the R12 fail on me last week.
    (On a busy road during the morning rush of course). My first 'failed to proceed' event for this car.
    Anyway, during this episode the linkage got a bit bent either when pushing the car off the road or when it was winched onto the tow truck. Would the bent linkage affect the gear change?


    R12 gear linkage-img_0169.jpg

    I replaced the Silentbolcs and put everything back together but I don't know if I'm now imagining things but the gear selection, while never smooth, appears to be more difficult. Reverse particularly is difficult to select.
    It all went together without any drama.

    I don't want to try an straighten the arm unnecessarily as it looks like it will easily break with any sort of sideways force (the shaft appears to just be butt-welded to the plate). It already had some sideways force to bend it in the first place. If straightening it isn't going to make any difference I'll leave well enough alone.

    R12 gear linkage-img_0176.jpg

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    RTT
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  2. #2
    Simon's Avatar
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    Quote Originally Posted by REN TIN TIN View Post
    Would the bent linkage affect the gear change?


    Click image for larger version. 

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    If you haven't straightened this bit, it wouldn't surprise me things are a bit dodgy, as it looks bent and therefore would be out of optimal alignment. Straightening it, or replacing it by an unbent part, would - if the other bushes are in good nick - likely restore the "normal" selectivity of the gears.
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    COL
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    I'm with Simon, you will either need to straighten all the bent bits or replace them.

    if you are having gear selection problems the bushes that join the gear lever to the remote link rod could be worn. Also where the remote linkage attaches to the selector shaft at the rear of the gearbox, the rubber bush and where the roll pin is.

    My gear change is very precise and positive, I have removed all the rubber parts (replaced with nylon) and made sure there is no slop in any of the joints.
    Regards Col

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    There's a brand new one of those on ebay fr, I'll see if I can find it for you. (humblest apologies to the apostrophe police if I got it wrong)

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    1000+ Posts schlitzaugen's Avatar
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    I think it is too easy to straighten it without straining the weld to not do it. The bend is going to at least put your gear stick in a different rest position (did you notice anything?) hence command a different range of movement.
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    I used to carry a pair of vice grips in my R8 during a stage of a few failing events while waiting for new blocks. I used the vice grips more than once!

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    Last edited by 59 Floride; 4th October 2017 at 09:31 PM.

  8. #8
    1000+ Posts REN TIN TIN's Avatar
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    Thanks 59 Floride but unfortunately this is the wrong end.
    That's the end the connects to the gearbox selector, I need the end that connects to the gear lever.
    But thanks for looking.
    (The apostrophe is good, this is a contraction of 'there is' so the apostrophe is correct).

    The bend does appear to make enough difference to affect the gear change.
    I was hoping it wouldn't be significant but it appears it is.
    The kink is only about 1/8" to 1/4" at the plate, I don't know, maybe 10 - 15 degrees.
    Over the length of the arm it's a lot further at the lever
    I'll pull it out on the weekend and have a go at straightening it.
    The worst that can happen is the weld will break and I may have to weld it back on (hopefully in the right place).

    Cheers
    RTT
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    1000+ Posts alan moore's Avatar
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    Quote Originally Posted by REN TIN TIN View Post

    The bend does appear to make enough difference to affect the gear change.
    I was hoping it wouldn't be significant but it appears it is.
    The kink is only about 1/8" to 1/4" at the plate, I don't know, maybe 10 - 15 degrees.
    Over the length of the arm it's a lot further at the lever
    I'll pull it out on the weekend and have a go at straightening it.
    The worst that can happen is the weld will break and I may have to weld it back on (hopefully in the right place).

    Cheers
    RTT
    I don't think you will have any worries with bending the gearshift shaft back straight again. I have found them to be quite tough to break the weld.
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  11. #11
    1000+ Posts REN TIN TIN's Avatar
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    Quote Originally Posted by Shoji View Post
    Thanks for that Shoji.
    That's bloody good value at 30 Euro for the complete linkage end to end.
    The asking price for the silentblocs alone are about 10 Euro each (which I think is a bit of a rip-off).


    Cheers
    RTT
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  12. #12
    Fellow Frogger! Shoji's Avatar
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    I bought the silent blocks off Ebay for nicks. There is still a bit of stuff that crops up on Ebay, even in Australia. It doesn't help that I'm a shopaholic.
    Cheers. John
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  13. #13
    1000+ Posts REN TIN TIN's Avatar
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    Well I pulled the linkage off on the weekend and maybe it was a bent a bit more than previously thought.
    R12 gear linkage-img_0181.jpg
    It didn't look so bad when it was hanging under the car and it sure was enough to stuff up the gear change. Now relatively straight, perhaps could have gone a couple of degrees more but was getting very hard to bend at this stage.
    The gear changing is much better.

    R12 gear linkage-img_0182.jpg

    I really didn't think a bit of a kink would have made that much difference but it sure did.

    Cheers
    RTT
    Last edited by REN TIN TIN; 9th October 2017 at 07:18 AM.
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    Rooting round on the mezzanine last night and found one.

    Its yours if you don't wanna bend the old one. Even got an entire gear shift assembly somewhere too if you can't live with the old one.

    It'll cost you postage.
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    Quote Originally Posted by Exfrogger View Post
    Rooting round on the mezzanine last night and found one. Its yours if you don't wanna bend the old one. Even got an entire gear shift assembly somewhere too if you can't live with the old one. It'll cost you postage.
    Your mezzanine sounds really interesting....
    JohnW

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  16. #16
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    You have no idea...
    Daily Drivers: R10, R12, R17T(?) Decouvrable

    In the Shed(s):
    R8 (1.4 motor, 4 shock rear end), Dauphine, Pugeot 404

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  17. #17
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    In fact neither do I.
    Daily Drivers: R10, R12, R17T(?) Decouvrable

    In the Shed(s):
    R8 (1.4 motor, 4 shock rear end), Dauphine, Pugeot 404

    In the Past:
    Dauphine X2, R10 X lots, R12 X2, R16TS, R17TS

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