Hoff Valve removal and replacement

Discussion in 'Maintenance Bay' started by CGarrison, Jan 1, 2018.

  1. CGarrison

    CGarrison Filing Flight Plan

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    Does anyone have experience/instructions on removing or replacing the Hoff Valve in a piper Lance?
     
  2. mtuomi

    mtuomi En-Route

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  3. PaulS

    PaulS Final Approach

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    Is it Hoff or on?
     
  4. CGarrison

    CGarrison Filing Flight Plan

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    It’s on...
     
  5. weilke

    weilke Touchdown! Greaser!

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    Just remove the differential girdle-spring and it'll pop right out.
     
  6. CGarrison

    CGarrison Filing Flight Plan

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    My concern is having to replace the orings inside valve requires dismantling the entire back up mechanism..certain parts should not be adjusted per service manual...has anyone dismantled entire system?
     
  7. Let'sgoflying!

    Let'sgoflying! Touchdown! Greaser!

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    Service Manual?
    Piper Lance forum?
    Google?
    YT?
     
  8. PaulS

    PaulS Final Approach

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  9. CGarrison

    CGarrison Filing Flight Plan

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    Paul I saw that post..I would like to to the person that took it apart..don’t want to get anything out of adjustment