1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Cambelt failed ???

shirbotmin Sep 23, 2007

  1. shirbotmin

    shirbotmin New Member

    2
    0
    1
    Just posting this for info.

    My 1999 A6 2.4 suddenly died one morning about 1 sec after starting. On trying to restart it sounded completely different as the engine was spinning without compression. Oh no - cambelt failure - I thought. I got my local independant garage to recover and they agreed with the diagnosis and stripped the front of the car down to get to the cambelt - which was intact.

    It turns out my oil pump pressure release valve had stuck closed, over-pressurising the engine and causing the hydraulic tappets to misbehave - resulting in the lack of compression.

    It still cost be £1000 to fix but at least I didn't have bent valves & dented pistons and I now have new cambelt kit and water pump fitted. Engine now running sweet as a nut again.
     

Share This Page