Dauphine Water Pump
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  1. #1
    Fellow Frogger! geodon's Avatar
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    Default Dauphine Water Pump

    New price + air freight is prohibitive.

    Has anyone seen a repair kit listed?

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    The manual & parts book is not clear re dismantling:

    1. Is there a circlip or pin holding the shaft in?

    2. Does the shaft exit to the rear with the impeller attached or do I remove the impleller (it looks like it's just peened on?) & go forward?

    3. How much push is required? Hydraulic press or a big hammer?
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
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  2. #2
    Fellow Frogger!
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    Hi,

    The impeller is attached to the shaft. The shaft is pushed out from the front of the pump housing after removing the key from the keyway. There are a couple of circlips holding the two bearings in the housing. I removed an impeller from a 4CV housing using my bench vice. I would not use a hammer.

    Kind regards

    David

  3. #3
    Fellow Frogger! Geoff in Gully's Avatar
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    I have successfully used a hammer on an R4 pump - nut on to protect the threads, very judicious taps just to start the shaft moving then used bench vice and drift. No dramas really, well apart from getting the bigger off the head.
    There is a solution to every problem. There is a problem with every solution.
    • Renault R4L '63 - Descartes
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  4. #4
    Too many posts! JohnW's Avatar
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    Default

    Nothing to add except I've seen repair kits on ebay France. I think I've seen the carbon thrust seal listed as a part too - maybe Melun Retro Passion? Bearings are standard fare and you can get them fully sealed and forget them for a while. They're fairly easy to dismantle and re-assemble.

    If you just replace the carbon seal, perhaps reface the bronze seat it rubs on.

    If the housing is OK, corrosion-wise, I'd definitely fix it not replace it.

    OK - quick check (5 minutes) reveals:

    1. Melun Retro Passion have just the carbon seal (Euro 10 plus postage) or a kit (seal plus bearings plus gaskets) for Euro 45 plus postage. Kits I've seen have always been a new impeller on the shaft with the carbon seal pressed into place.

    2. Web Pieces Retro has new and S/H ones, Euro 38 for the latter: Pompe à eau Dauphine d'occasion (brute de démontage, pour remise en état)

    So, there are options. Once you have persuaded it to come off the head....

    Cheers
    JohnW

    Renault 4CV 1951
    Renault R8 1965
    Renault Scenic 2005 (wife's)
    Renault Scenic 2007 (mine)
    Renault Scenic 2006 (daughter's)
    Citroën CX Pallas 1980

    National Co-ordinator, Renault 4CV Register of Australia

  5. #5
    Fellow Frogger! geodon's Avatar
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    Merci mes amis!

    I had a BFO (Blinding Flash of the Obvious) whilst looking at the exploded diagram:

    When the nut holding the pulley on is done up tight, that will locate everything on the shaft nice & snug ergo no circlip etc is required to lock the assembly in & the shaft MUST exit to the rear.


    "When all else fails, read the manual again."
    "Pauses for audience applause......not a sausage!"....Bluebottle

    1949 Citroen Big 6
    1955 MGA1500
    1970 Peugeot 404 Utility (Resto project)
    1962 Renault Dauphine Gordini (Resto project)
    1950 Grey Fergie Tractor

  6. #6
    Too many posts! JohnW's Avatar
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    Mais oui!! It comes out on the impeller side, complete with impeller and graphite seal once the pulley is off the other end and you've adroitly removed the Woodroffe key without losing it. The old comment applies, "Don't ask me how I know this!"

    For the "mini-kits", which I've never needed to use, I guess you get the old graphite seal assembly off the shaft, leaving the impeller in place, and press the new seal down until it contacts the impeller face. They are fairly basic once you get your mind around them and do it a few times (if you are unlucky or keep your car for decades). I suspect a bit of wear on the bronze face in the housing won't matter too much as the graphite should bed into it, but I'd try to dress it up.

    Two parallel comments.

    1. Check whether the tiny jockey wheel bearings are OK and grease them regularly (I do mine every 1000 km or annually)
    2. Don't overtighten the generator belt, just enough to stop things slipping and NO MORE as the bearings are all tiny.

    Good luck.
    JohnW

    Renault 4CV 1951
    Renault R8 1965
    Renault Scenic 2005 (wife's)
    Renault Scenic 2007 (mine)
    Renault Scenic 2006 (daughter's)
    Citroën CX Pallas 1980

    National Co-ordinator, Renault 4CV Register of Australia

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