CX auto trans parking pawl
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  1. #1
    Member Chimbu's Avatar
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    Default CX auto trans parking pawl

    My '84 CX auto transmission parking pawl has broken.

    Anyone replaced one?

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    Is it an engine out job?
    Gear box separation from engine?
    End cover only?
    Hyd block cover only? Access from below.

    Also where to go for a newey?

  2. #2
    1000+ Posts Greg C's Avatar
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    I have never had one broken on my CX, so I think it must be an engine out job. A broken parking paul on a C-matic can be fixed in situ but not the auto
    Mine

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  3. #3
    1000+ Posts gerrypro's Avatar
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    It can be done through the left wheel arch, BUT it is a lot easier if one removes the entire power pack.
    The parking pawl can be rebuilt successfully with arc weld or brazing. I did the one in my car when it was restored for the first time. It is still working well and was in perfect condition when I rebuilt the synchro on 1st during the current restoration ( No 3 ---- for that story see the appropriate thread:- Gerry's CX )
    Cheers Gerry

  4. #4
    Real cars have hydraulics DoubleChevron's Avatar
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    Hi Gerry,

    '84 is probably a fully auto ... borg warner. I couldn't imagine being able to access any part of it without removing it from the car

    seeya,
    Shane L.
    'Cit' homepage:
    Citroen Workshop
    Proper cars--
    '85 Series II CX2500 GTi Turbo I
    '63 ID19 http://www.aussiefrogs.com/forum/citro%EBn-forum/90325-best-project-car-you-have-ever-seen.html
    '72 DS21 ie 5spd pallas (last looked at ... about 15years ago)
    '78 GS1220 pallas
    '92 Range Rover Classic ... 5spd manual.

    Yay ... No Slugomatics


    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual

  5. #5
    1000+ Posts Greg C's Avatar
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    No, CX auto is ZF
    Mine

    CX Prestige
    Toyota Prius

    In the family

    Xantia SX

  6. #6
    Member Chimbu's Avatar
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    Default

    It's an '84 3 speed ZF box.

    CX Series 1 workshop manual, part one doesn't say much.
    Except for the page attached. Has anyone seen something like it?

    Either it's behind the right (secondary) pinion in which case the near side cover would reveal it.
    Or it's back on the primary near the torque converter which is a box out job.

    Part 2 of the manual would no doubt shed some light.

    If i've got to pull the box out just to fix the pawl it's not worth it.
    Rather stick a large screwdriver through an inspection hole to lock the flywheel

    E
    Attached Thumbnails Attached Thumbnails CX auto trans parking pawl-park-pawl.jpg  

  7. #7
    Real cars have hydraulics DoubleChevron's Avatar
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    Download the late CX manual. It will cover the ZF

    seeya,
    Shane L.
    'Cit' homepage:
    Citroen Workshop
    Proper cars--
    '85 Series II CX2500 GTi Turbo I
    '63 ID19 http://www.aussiefrogs.com/forum/showthread.php?t=90325
    '72 DS21 ie 5spd pallas (last looked at ... about 15years ago)
    '78 GS1220 pallas
    '92 Range Rover Classic ... 5spd manual.

    Yay ... No Slugomatics


    Modern Junk:
    '07 Poogoe 407 HDi 6spd manual

  8. #8
    Member Chimbu's Avatar
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    One would think that, however the series 2 manual does not shed any more light than the series 1.
    Thanks anyway Shane for the suggestion.
    Judging by their reticence on the subject, I guess the French don't like auto gearboxes. Perhaps auto shift prevents driving with panache and gallic flair.

    What I need ia part 2 (repair)
    Last edited by Chimbu; 15th February 2012 at 06:33 PM. Reason: clarification

  9. #9
    Fellow Frogger! kimmo's Avatar
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    I will email and someone who might have a ZF box separated from the engine right now...
    C5 Touring 2008, CX 2400ie Prestige '81 (with dead gerbox), CX 2400 Pallas C-Matic '80, CX2400 Super Familiale C-Matic '79 (to be scrapped very soon) , CX2400i Familiale 5-spd (to be scrapped), GS 1220 Wagon '78 (next project), ID19 '64
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  10. #10
    Member Chimbu's Avatar
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    That would be great to see, Kimmo.

  11. #11
    Fellow Frogger! John P's Avatar
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    Sorry mate. There is no part 2. What you've seen is all we get: darn all. Citroen's love affair with pictograms made the late manuals only marginally useful and I think the factory reckoned the repairers would take a faulty auto trans out and handball it to a ZR specialist. A bit like here. Like Greg, I've never had that problem so it looks like you're the guinea pig. I'm so sorry to be of no help whatsoever. Good luck.

    PS I remebered downloading a ZF 3HP22 workshop manual for units fitted to Peugeots. I've just tried to open it but it says it's damaged and won't open. Canny use of your search engine should find it, though. I'd chase it for you but I'm being dragged away.
    Last edited by John P; 15th February 2012 at 06:44 PM. Reason: Added stuff
    2006 C5 2.0 HDI estate - daily driver
    1981 2CV - The Amelie project is complete.
    1930 C6F torpedo - My Great Folly! Project under way.

  12. #12
    1000+ Posts Greg C's Avatar
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    Yes I have the ZF 3HP22 manual but it is for RWD configuration. Jason Hantos has my old gearbox at his workshop but it hasn't been taken apart except for the valve body.

    If necessary I could ring him but we will obviously have to pay him to extract the parking pawl.
    Mine

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    Toyota Prius

    In the family

    Xantia SX

  13. #13
    Member Chimbu's Avatar
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    For to everybody kind enough to offer me a pdf of 3Hp-22 manual the PUG 505 605.
    Thanks but I have it already.

    It is no use for the CX.

    AFAIK, the only other car makers to use this box were Alfa, Pug and BWM. All three are RWD.

    Wish the CX used the straight through RWD box. The park pawl is in the tail cone and very simple to get at.

    The CX pawl however is in there somewhere.
    I guess the way to go is pull off the front (hydraulic) block to expose the selector shaft. Pray that the break is there.
    Failing that pull off the side cover through the wheel arch. Hope the pawl is there.
    Failing that pull out the darn engine and replace everything.

    And while we're at it, why not recondition everything- engine, trans, drive shafts- divorce, bankruptcy.

    It could be a simple three hour job or run into days.

    Wash my mouth out with soap and water but sometimes I just wish Citroen do do SOMETHING in common with the rest of the motoring world.

    Ah! but then we wouldn't love them, would we

  14. #14
    Fellow Frogger! kimmo's Avatar
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    I got a reply from Len but, although he has pulled CX ZF gearbox apart he could not remember the parking pawl arrangements. It was years ago.
    He has been rebuilding 2500GTi engine, so would be a good contact in Brisbane if you go that route
    C5 Touring 2008, CX 2400ie Prestige '81 (with dead gerbox), CX 2400 Pallas C-Matic '80, CX2400 Super Familiale C-Matic '79 (to be scrapped very soon) , CX2400i Familiale 5-spd (to be scrapped), GS 1220 Wagon '78 (next project), ID19 '64
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  15. #15
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    Try Jaggi. They are based here in the USA, but export parts and documentation. They also have a diagram of the 3hp22 online, and even reference the CX on their site.

    http://www.jie.com/

  16. #16
    Member Chimbu's Avatar
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    Thanks to all contributors for useful suggestions.
    Alan, from Houston thanks for:
    http://www.jie.com/
    who are sending me the parts.

    Firstly undertaking any auto gearbox repair is not for the fainthearted. Cleanliness and specialist knowledge is required.

    As advised in a previous post my method was to take off covers one by one and hope for the least intervention.

    Here was the start-

    front cover accessible from above after hydraulic pump and regulator removal.
    There are about 12 Torx screws and I stripped about four getting them out. These were replaced with internal hex screws.
    CX auto trans parking pawl-front-case.jpg

    With the cover laid to one side I examined the case carefully for clues.

    Bingo- evidence of a broken spring next to the sump magnet. The fault was looking increasingly like it could be cured with only one cover removal and hopefully no engine out.

    The cover off also showed the hydraulic block. This would have to come out also. 13 more T27 torx screws.
    CX auto trans parking pawl-valve-block.jpg


    Its removal showed the park gear (taken from below) with its teeth. The pawl locks into this.
    CX auto trans parking pawl-park-gear.jpg

    The workings are evident.The spring pulls the cam fully home, pushing down the park pawl mechanism.
    CX auto trans parking pawl-park-link.jpg

    From here it's a simple matter to pull of the cam and replace the spring.
    CX auto trans parking pawl-pawl-spring.jpg


    Hope this helps.
    Last edited by Chimbu; 20th February 2012 at 07:35 PM. Reason: insert inline pics

  17. #17
    1000+ Posts Greg C's Avatar
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    Well you always learn something. Well done, nothing ventured, nothing gained. I agree totally with your worry about taking the engine out and the while she's out may as well do....... I have been there done that, the upside is if you are thorough you end up with a very reliable CX at some cost to the cash-flow.
    Mine

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    Toyota Prius

    In the family

    Xantia SX

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