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  1. #1
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    Join Date
    Mar 2012

    S3 APY Cambelt Hydraulic tensioner

    First time post on here, so apologies if there is a FAQ on this that my male refridgerator blindness has hidden for me.

    I have just changed the cam belt on my car. I should have remembered from my time as an Audi tech, that you do not strip the hydraulic tensioner if you forget to pop a 3mm pin in the damper prior to removal !! Anyway, i guess that i will probably have to purchase anew one (costly out here in Oz). Anyway, i reassembled the unit with engine oil, ran the car, all good for 10 km or so, then some rattling. On inspection i found that the tensioner was flapping around, albeit only a couple of mm. Sounded awful. So stripped it off again, made a few adjustments and same thing happened. What baffles me is that after leaving the car for 10 minutes or so, it goes away, then comes back at around 2000rpm. Being a stubborn type of chap, i am determined to work out why?

    Has anyone ever stripped one of these tensioners? If so, do you have pics, (schematic would be awesome) of order of things, in case i was having a senior late night moment ! Any idea of quantity of oil to add to the unit ? Or indeed what type of oil??

    Your thoughts would be appreciated


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  3. #2
    Broken Byzan's Avatar
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    Apr 2004
    Cardiff, United Kingdom

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    No schematic exists that i am aware of, they are a sealed non serviceable part



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