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Thread: Triumph Pre Unit Clutch Parts

  1. #1
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    eek Triumph Pre Unit Clutch Parts

    Anyone out there got a pre unit single row clutch chain wheel ( clutch housing) in good condition and/or any other clutch bits?

    The one on Marlon the 53 Thunderbird is buggered, and no amount of butter will help....
    DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.

  2. #2
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    joe hannah from memory triumph10 on trademe, or graeme cole?

  3. #3
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    20th January 2010 - 14:41
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    Quote Originally Posted by Voltaire View Post
    Anyone out there got a pre unit single row clutch chain wheel ( clutch housing) in good condition and/or any other clutch bits?

    The one on Marlon the 53 Thunderbird is buggered, and no amount of butter will help....
    Plunger A10 clutchs fits but i think they are duplex chainwheels
    Are you sure it cant be reclaimed with weld machine retreat.
    this is on Trademe
    https://www.trademe.co.nz/motors/mot...ba081ea39b7614
    Buy Now $122.00
    SOUTHERN SPARES LTD

    CLUTCH CHAINWHEEL - Triumph/BSA

    BSA A&B Group Swinging arm models (1958-) with 4 spring clutch.
    Triumph Pre-Unit 500/650cc Twins models with 5 plate clutch.
    Click image for larger version. 

Name:	627576915.jpg 
Views:	1 
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ID:	340271
    Number of Teeth: 43T
    Chain Type: Single


    OEM: 57-1549,42-3266
    Gearbox one there too plus all the bits
    https://www.trademe.co.nz/motors/mot...5019b62602e088
    Last edited by husaberg; 9th January 2019 at 19:02. Reason: okay thery appear to be the same lol



    Kinky is using a feather. Perverted is using the whole chicken

  4. #4
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    I was thinking repair but as you say new ones are not expensive.
    I have a new set of plates, just get some rollers and the cush drive rubbers and I can be a rebel without a cause.
    DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.

  5. #5
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    Quote Originally Posted by Voltaire View Post
    I was thinking repair but as you say new ones are not expensive.
    I have a new set of plates, just get some rollers and the cush drive rubbers and I can be a rebel without a cause.
    Get OE rollers. They're an orphan size from memory - 1/4 X 6mm I think.
    Reason is a tool - remember where you left it..... The late, great, John Clarke

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  7. #7
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    Quote Originally Posted by Paul in NZ View Post
    Yes they are not too bad.

    I was hoping for someone to say their shed was full of pre unit Triumph parts and just bring my van around and take them away.

    This list is now clutch basket, rollers, plates ( I have) cush drive rubber and a new nut to replace the beautifully cold chiseled one...

    These poor old bikes have had a lot of ham fisted owners.
    DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.

  8. #8
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    Quote Originally Posted by Voltaire View Post
    Yes they are not too bad.

    I was hoping for someone to say their shed was full of pre unit Triumph parts and just bring my van around and take them away.

    This list is now clutch basket, rollers, plates ( I have) cush drive rubber and a new nut to replace the beautifully cold chiseled one...

    These poor old bikes have had a lot of ham fisted owners.
    The owners started out with normal hands but the swelling from the vibrations turned turned them into legs of hams



    Kinky is using a feather. Perverted is using the whole chicken

  9. #9
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    Mita Tyres arrived yesterday, thought give them ago instead of paying stupid prices for period looking Avons.

    Looks like taking the rear wheel off is not a 5 minute job like on the R80 ST.
    DeMyer's Laws - an argument that consists primarily of rambling quotes isn't worth bothering with.

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