VR6 Engine Rattle

Discussion in 'VR5, VR6 & Wx' started by SW VR6, Aug 9, 2004.

  1. SW VR6 New Member

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    I have an R-reg VR6 with 85k on the clock, full VW history and oil changes every 6k miles etc. etc.

    The engine has recently developed a rattle and I can't quite pinpoint where it's coming from. It gets louder when I rev the engine, but seems to fade a bit when the oil temp reaches around 70 deg C. It never really disappears altogether though - I can always hear it in the background.

    Could it be be worn upper guide rail and/or tensioner or maybe worn hydraulic tappets? If so, are either of these expensive to fix?

    The car has recently had a full service, with no problems reported.

    Any ideas/suggestions greatly appreciated. Cheers
     
  2. AndrewF Forum Addict

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    this thread may help, theres a link to a sound clip of rattling chains - click
     
  3. AndrewF Forum Addict

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    if it is them, they are pricey to fix due to the fact that either the engine or the gearbox has to be removed.
     
  4. vwpolo2000 Forum Member

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    Thats an interesting link, it seems the problem was the upper guide rail all along.
     
  5. TheSecondComing Forum Addict

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    Early mileage for the chain/rails to go though, I'd try a change or clean of the tappets first. I've driven a few VR's with over 130k on them that had never seen the dreaded rattle yet, and they weren't exactly driven sympathetically....... [:s]
     
  6. vwpolo2000 Forum Member

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    The upper rail on early cars weren't that good, just plastic crap. I think the later upper rail are strengthened, or so i read on vwvortex.
     

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