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Thread: Cam belt change

  1. #11
    Join Date
    May 2004
    Location
    Bath UK
    Posts
    306

    Default Re: Cam belt change

    The life of a cam belt is debatable, with age being very important. I know, because I have just scrapped my car due to a broken cam belt that had done 30,000 miles and was nearly five years old. Cam belts can jump a tooth causing the tappets to chatter. Had I known this....

  2. #12
    Join Date
    May 2016
    Location
    Suffolk
    Posts
    6,220

    Default Re: Cam belt change

    Quote Originally Posted by huldah View Post
    The life of a cam belt is debatable, with age being very important. I know, because I have just scrapped my car due to a broken cam belt that had done 30,000 miles and was nearly five years old. Cam belts can jump a tooth causing the tappets to chatter. Had I known this....
    This is incorrect. It is possible for a belt to jump a tooth, usually resulting in poor performance, sometimes resulting in bent valves.
    Rainbow Marine.
    www.rainbowmarine.co.uk

  3. #13
    Join Date
    May 2001
    Location
    UK - Solent region
    Posts
    35,557

    Default Re: Cam belt change

    Quote Originally Posted by PaulRainbow View Post
    This is incorrect. It is possible for a belt to jump a tooth, usually resulting in poor performance, sometimes resulting in bent valves.
    Well, my Peugot Diesel jumped a tooth because of some debris from adjacent belt.
    Had to scrap car, even though belt was less than 30,000 & 5 yrs.

  4. #14
    Join Date
    May 2016
    Location
    Suffolk
    Posts
    6,220

    Default Re: Cam belt change

    Quote Originally Posted by alant View Post
    Well, my Peugot Diesel jumped a tooth because of some debris from adjacent belt.
    Had to scrap car, even though belt was less than 30,000 & 5 yrs.
    That's because of my second point, pistons colliding with the valves. On some Peugeot engines the camshaft is positioned over the valves, which are vertical, and the valves don't readily bend, they shatter the cam shaft, break the bearing housings and generally destroy the cylinder head. This usually requires the belt to jump more than one tooth though.
    Rainbow Marine.
    www.rainbowmarine.co.uk

  5. #15
    Join Date
    Nov 2009
    Location
    Home UK Midlands / Boat Croatia
    Posts
    16,251

    Default Re: Cam belt change

    Quote Originally Posted by alant View Post
    Well, my Peugot Diesel jumped a tooth because of some debris from adjacent belt.
    Had to scrap car, even though belt was less than 30,000 & 5 yrs.
    Errrrrr ..... exactly as described by Paul.

    It's the "chatter" bit that he's rightly querying.

    Richard
    Last edited by RichardS; 23-09-18 at 09:21.

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