timing chain stretch check 240d

Discussion in 'Engine' started by stuarth, Aug 12, 2011.

  1. stuarth

    stuarth Member

    Messages:
    55
    Joined:
    Jul 21, 2006
    Apologies if this has been asked a million times but how do you check the timing chain stretch on this engine? If it needs changing, is it relatively easy to do using a chain and a split link?

    thanks
     
  2. oldcro

    oldcro Hardcore MB Enthusiast

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    Sep 10, 2007
    Location:
    Shetland
    Car:
    Range Rover Sport 3.0 HSE
    If the chain has "stretched" the sprockets will be worn as well so ideally a set of sprockets and chain would be required.

    The stretch is caused by wear on the bearing between the pin and the roller, result is not all the rollers fit the sprocket grooves. Resulting in all the strain going on a few of the sprocket grooves giving rapid wear to both chain and sprockets.
     
  3. Number_Cruncher

    Number_Cruncher Hardcore MB Enthusiast

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    Jan 14, 2008
    Location:
    Midlands
    Car:
    1995 E300D
    A quick check: Line up the timing mark on the cam, and see how far beyond TDC the crank ends up. If you end up fitting a new chain, the split link is only used temporarily, to roll the new chain in, turning the crank by hand - you then rivet a solid link in place of the split link before running the engine.
     

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