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Thread: EAS Valve Block Rebuild

  1. 29th January 2012, 11:06 AM #1
    PeterAllen
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    EAS Valve Block Rebuild

    Having mucked around with this EAS for a number of weeks I am convinced that the problem with these valve blocks is the seals in the bottom of the 4 air bag line solenoid shafts rather than the o rings so much. I had heard of someone drilling them out and replacing with a 4mm thick rubber plug. Has anyone done this? as I note that the current plugs are well indented and I fear if any leaks in the block are happening it is from this area.
    PS. the base of the lower shaft with the spring on it.
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  2. 29th January 2012, 12:37 PM #2
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    PaulP38a
    PaulP38a is offline Wizard Gold Subscriber
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    I have had success with the rubber feet on mine by sanding them back with some fine emery paper to flatten out the indents.
    My toys, projects and write-ups at PaulP38a.com
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  3. 29th January 2012, 02:17 PM #3
    Hoges
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    yep, 2000 grade wet 'n' dry which has been soaked in soapy water for an hour and left wet. Persistent gentle abrasion cleans them up quite well!
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  4. 29th January 2012, 02:30 PM #4
    PeterAllen
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    Thanks Paul I will give that a go.
    Would be worth adding that procedure plus checking the position of the top rubber top on the same piece, to the O ring rebuild steps and doing a short test with each solenoid with a 12v feed to check operation before putting it back in the car ( I know prolonged direct feeds may burn out solenoids so testing this way is for short burst only to check initial operation).
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  5. 29th January 2012, 04:30 PM #5
    Hoges
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    Hmmm ... I seem to recall that the solenoids are only 5 volt...need to check this out before pressing the button!
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  6. 29th January 2012, 05:12 PM #6
    PeterAllen
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    Happy to be corrected in the voltage as I am only retelling what I was advised by a far more knowledgeable person than I in these matters. No surprise if they burn out then but he definetly told me to use a 12v feed.
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  7. 29th January 2012, 05:24 PM #7
    PeterAllen
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    Hoges the sensors are at 5Volts but the solenoids are 12v as detailed in this service bulletin P38 EAS Service Bulletins

    Refer to this link
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  8. 29th January 2012, 07:40 PM #8
    superquag
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    Quote Originally Posted by PaulP38a View Post
    I have had success with the rubber feet on mine by sanding them back with some fine emery paper to flatten out the indents.
    Are these the 'indented' ones you mean ? - They rest on top of the internal volcano-shape and seal... hopefully...

    That O ring in the pic can easily be a problem, if its not 101% correctly seated on re-assembley.

    Don't ask how I know...

    James in Gosnells
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  9. 29th January 2012, 09:19 PM #9
    PeterAllen
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    Yep that's the one
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  10. 29th January 2012, 09:47 PM #10
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    adm333
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    A similar thing happened to me, but I think the small black piece had fallen out and I had put it back the wrong way.

    See here

    http://www.aulro.com/afvb/p38a-range...ild-aware.html
    2011 Range Rover Sport SDV6 Autobiography
    2007 Range Rover Sport TDV6
    2004 Freelander TD4 SE
    1997 Range Rover 4.6 HSE
    1994 Range Rover Vogue
    ----------------------------------------
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