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Thread: Really struggling with timing belt tensioner

  1. #1
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    Vehicle : Vectra

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    Engine : CDTi 150

    Year : 2004

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    Default Really struggling with timing belt tensioner

    Ok so the belt is on and the tensioner is fitted- cdti 150

    I am struggling to get the pointer to the hole. If i lever the tab to make the tension tighter the pointer doesn't move.

    I must be doing something obviously wrong but can't work it out

    Please help!

  2. #2
    Regular Member lee gsi's Avatar
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    Is the tensioner loose so it can move.

    Try pushing it from the other side so the pointer moves.

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    When i put the tensioner it, the arrow is the bottom, i take it thats how it starts. Push the tensioner all the way out, tighten the bolt and arrow still at the bottom. I take it if I then loosen the bolf the arrow should then move?

    Or am i way off?

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    Regular Member AntSSSS's Avatar
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    OK - so - are you leavering it using a bolt screwed into the threaded hole underneath the tensioner.

    You need to leaver from that onto the turned out piece of metal on the tensioner at the bottom..

    The arrow will stay at the bottom - then you will get to a point where its tensioned against the belt and it will then rise (quite quickly). Its then at that point you need to tighten it.

    See the pic in another thread I replied too.

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    I get you know, it rises as you lever, many thanks!

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    Regular Member AntSSSS's Avatar
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    yip... Hold the strain once its in the right spot and tighten.

    then turn the engine crank through 720 degrees (2 complete revolutions) and loosen and re-tension.

  7. #7
    Regular Member nutron's Avatar
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    Do not over tighten as that can cause failure. I used a mobile phone camera to get a picture square on of the tension, avoiding parallax errors.

  8. #8
    Regular Member AntSSSS's Avatar
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    Quote Originally Posted by nutron View Post
    Do not over tighten as that can cause failure. I used a mobile phone camera to get a picture square on of the tension, avoiding parallax errors.
    LOL - thats EXACTLY what I did:
    VecEstate-42.jpg

    VecEstate-43.jpg

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    Just to top of this thread for the benefit of others, you really do have to the lever the tensioner to get the arrow to ping up. I was expecting not much effort! So if you're doing the tensioner and the arrow hasn't moved, give it some more

  10. #10
    Regular Member the-wizard's Avatar
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    belt ten.JPG its actually done as above & as shown here.

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