Timing tensioner piston

Discussion in 'Z32 Technical' started by salvx1992, Jun 9, 2018.

  1. salvx1992

    salvx1992 Member

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    Hello.
    Just need some advice regarding the tensioner piston.
    Currently doing a 100k timing service and I've got a issue with the tensioner piston not coming back out.
    I've backed out the 10mm stoper bolt all the way and the piston won't come out with it.
    Is this the piston being faulty or am I missing a step in renngaging the tensioner pistion.
     
  2. rob260

    rob260 Moderator Staff Member

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    If the stopper bolt has been removed and the hydraulic piston isn’t pushing on the tensioner arm then it (the cylinder) is no good.
     
    Last edited: Jun 10, 2018
  3. Chrispy

    Chrispy Pretentious Upstart

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    Yep, she's stuffed and you should replace it. Good practice to change it each time you do the belt anyway.
     
  4. TWIN TERROR

    TWIN TERROR Active Member

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    Don't risk it as if it's not right it could cost you a motor
     
  5. Sanouske

    Sanouske Retired Moderator

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    Agreed as above. If the plunger is slow to return or doesn't return at all, shes dusted.

    How quickly did you push the plunger back in? You have to 1/4 turn and wait a minute (roughly) so you don't damage the internals.

    Go OEM replacement if possible, but the Dayco replacement units aren't too bad if you had to use them
     

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