R12 Virage brake limiter ports - what goes where?
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  1. #1
    Fellow Frogger! Geoff in Gully's Avatar
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    Default R12 Virage brake limiter ports - what goes where?

    I'm replacing the rear brake pressure limiter on my daughter's '70 R12. The new limiter is a Virage one and has more ports. I figured I'd block off the unused bypass inlet and I'd be right. But the Virage limiter has four ports compared to only two on the old limiter and I find myself unconvinced I know which is which.

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    The workshop and parts manuals, while helpful, don't match each other and don't show the configuration in the vehicle. The workshop manual shows a three and four port limiters - both with dual outputs. The parts manual shows plumbing diagrams for two and three port limiters - all with single outlets - and only detail for a two outlet limiter. Neither of the two limiters shown in the workshop manual appear in the parts manual.

    I reckon it's not going to work properly if I put the wrong pipe in the wrong hole.

    Can anyone confirm that, in pic below, the centre white plug is the inlet, the other two white plugs are outlets and the red one is the bypass inlet.
    Attached Thumbnails Attached Thumbnails R12 Virage brake limiter ports - what goes where?-r12-limiter.jpg   R12 Virage brake limiter ports - what goes where?-dual.jpg   R12 Virage brake limiter ports - what goes where?-single.jpg  
    Last edited by Geoff in Gully; 31st August 2012 at 04:02 PM. Reason: remove stray icons
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  2. #2
    COL
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    Hi Geoff in Gully

    You will need a corrector valve with 2 ports like the one that you have pulled off your 1970 car.
    Regards Col

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  3. #3
    Fellow Frogger! Geoff in Gully's Avatar
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    Quote Originally Posted by COL View Post
    Hi Geoff in Gully

    You will need a corrector valve with 2 ports like the one that you have pulled off your 1970 car.
    Thanks for the input Col. Is there some other factor apart from the ports behind your advice?
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  4. #4
    COL
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    Hi Geoff

    I'm pretty sure that the valves a different internally. The Virages have a different master cylinder to the early cars.

    You will need the correct valve or you will need the Virage master cylinder and you will also need to run an extra hydraulic line from the master cylinder to the corrector valve.

    If I was you I would source the right valve and save yourself a lot of grief. The valves can be found on ebay or you may get one locally.

    Hope this helps.
    Regards Col

    1973 Renault R12 Station Wagon
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  5. #5
    COL
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    Quote Originally Posted by Geoff in Gully View Post
    I'm replacing the rear brake pressure limiter on my daughter's '70 R12. The new limiter is a Virage one and has more ports. I figured I'd block off the unused bypass inlet and I'd be right. But the Virage limiter has four ports compared to only two on the old limiter and I find myself unconvinced I know which is which.
    Hi Geoff

    I have just climbed under my old Virage and the corrector valve has only 3 ports. Are you sure that corrector valve is for a Virage?
    Last edited by COL; 1st September 2012 at 11:40 PM.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

  6. #6
    Fellow Frogger! Geoff in Gully's Avatar
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    Well, I am trusting Dave from French Connection for its identity but it looks just like the one in the workshop manual.
    The car has got a boosted dual master cylinder / split circuit. It might not be original but it all looks genuine.
    Three ports sound like the one in the parts manual - a single flexible hose going to a junction on the rear axle?

    Think I might try again to find a two-port limiter, as you suggest. I'm not hopeful though and she needs it soon.
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  7. #7
    COL
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    Hi Geoff

    Here is the corrector valve that you need http://www.ebay.com.au/itm/RENAULT-1...item337bb38b84
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

  8. #8
    Fellow Frogger! Geoff in Gully's Avatar
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    Thanks Col, clearly your eBay skills are better than mine!
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  9. #9
    COL
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    Quote Originally Posted by Geoff in Gully View Post
    Thanks Col, clearly your eBay skills are better than mine!
    Hi Geoff

    I was actually looking for something else, but came across it and remembered you was looking for a corrector valve.
    Regards Col

    1973 Renault R12 Station Wagon
    1976 Renault R12 Station Wagon
    2002 Renault Laguna V6
    1973 Alpine A110

    http://alpine-a110.weebly.com/

  10. #10
    Fellow Frogger! Geoff in Gully's Avatar
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    Ahh.
    Always been fond of serendipity.
    There is a solution to every problem. There is a problem with every solution.
    • Renault R4L '63 - Descartes
    • Renault R4L '64 - Lucy
    • Renault Megane '07 - too young to have a name...

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