DS - CRC Rebuild Kit
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  1. #1
    Fellow Frogger!
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    Default DS - CRC Rebuild Kit

    Has anyone here used an after-market kit to rebuild the clutch re-engagement control (CRC) of a bvh DS?

    My car is a carb car. I bought a rebuild kit and in addition to four springs, a ball bearing and a gasket, it has six O rings:

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    • Two big ones go on the caps that are held in place with spring clips/ 'C' clips
    • One medium sized one goes on the adjuster with the slotted end.
    • Two other medium ones are made into oval shapes and go on the flat plate sandwiched between the CRC and the hydraulic pipe.
    • But what about the sixth, small one?


    DS - CRC Rebuild Kit-img_7832.jpg

    I looked on the internet for clues. Franzose sell a kit with three o rings - presumably first three listed above.
    Dirk Sassens sells a carb car kit with five o rings but a kit for injection cars with six?

    Have i got the right kit? Whats the difference between the kits for carb and i.e.? Is it the springs? The ball bearing?

    Does anyone know?

    Thanks
    Paul
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  2. #2
    Tadpole
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    Default

    Might be oring on main shaft but big job to fit

  3. #3
    Fellow Frogger!
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    Thanks. I did think about that but, as you say, that would not be an easy job. I also wondered whether it fitted on the nozzle of the LHM return pipe - but that has a copper washer

    Also, I'm struggling to see why Dirk Sassens would sell a ket for injected cars with six 'o' rings, whereas the carb car kit only has five? I'm wondering if that distinction is down to the alternative mounting point for a CRC on an injection car - but even then, the basic mechanics are the same? Maybe the relocation means a pipe has a join needing an 'O' ring?

    DS - CRC Rebuild Kit-img_7827.jpg
    Ultimately, and whatever the reason, I'm wondering whether I have the injection car kit by mistake and, if so, is there any difference in the parts other than that 'O' ring - such as the springs and sizes of the other five 'O' rings?
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  4. #4
    Tadpole
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    Default

    Injection cars mounted by two studs , no oring

  5. #5
    Fellow Frogger!
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    Thanks - yes. so where DOESN'T the 'O' ring go?
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  6. #6
    Tadpole
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    Default

    Just checked , the shaft does have an oring on it

  7. #7
    skp
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    As you say, they all function the same - just different mountings. I wouldn't worry about it. A spare!
    skp

  8. #8
    Fellow Frogger!
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    Quote Originally Posted by myourd View Post
    Just checked , the shaft does have an oring on it
    Thanks Myourd. Your post is very interesting news! So, where exactly does it fit please? Can you describe?

    Presumably it goes on the rotating shaft that is joined to the carb by the flector? But if so, which end of that shaft does it go (as both would be potential leak points) and how/ where is it fitted? presumably from inside the unit with the shaft removed?

    DS - CRC Rebuild Kit-img_7947.jpg
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  9. #9
    Tadpole
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    Yes ,I removed the end cap and knocked the shaft out , thats as far as I went , will send a photo on Monday to show position of oring

  10. #10
    Fellow Frogger!
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    Yes please - interested in that photo. Also interested in that 'knocking' technique.
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  11. #11
    1000+ Posts michaelr's Avatar
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    Quote Originally Posted by Budge View Post
    Yes please - interested in that photo. Also interested in that 'knocking' technique.
    Is this the o ring you are looking for?


    DS - CRC Rebuild Kit-af.jpg
    Michael
    Member, Citroen Car Club NSW

    DS23 Pallas 5 sp. "Francoise" , BX19TRi Auto "Jacques Dutronc" , Teardrop Trailer "The Toad", BMW R65 "Rosamund"
    In the past: Renault 750, Dauphine, R4, R8, R10, Peugeot 504 Familiale, ID 19 (x2), Safari (x2)

  12. #12
    Fellow Frogger!
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    Yes! Thanks - that's really handy to know, but it will have to wait until next time as I have rebuilt the CRC now - unless I find that it leaks.......

    Handy photo. You can see the setting hole in the cam. What stops the cam rotating independently of the shaft? What keeps them together? Are the two parts splined, or is the a worm screw or something? Or is it a tight press fit?

    Thanks again
    Budge
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

  13. #13
    Fellow Frogger!
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    Michael - any chance of a couple more photos showing the area around the outside where the shaft fits and maybe the same from inside? I'm trying to get an idea of what bits come off and what bits stay on the unit when removing the shaft.
    1968 DS21bvh Pallas in Gris Palladium

    Restoration blog: https://ds-restoration.blogspot.co.uk

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