2nd Gen R56 Cooper S 82mm cam chain tensioner

Discussion in '2nd Generation: 2007+ R55 through R61' started by fngolfer, Aug 20, 2015.

  1. fngolfer

    fngolfer Active Member

    Apr 1, 2012
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    Had my cam chain tensioner replaced June 2013 with the 78mm unit. now I noticed there is yet another updated version that is 82mm in length. If my car DOESN'T make that cold start rattle, should I still replace it with the new version? 2009 R56S 65,000 miles
     
  2. ColinGreene

    ColinGreene Well-Known Member
    Motoring Alliance Sponsor

    May 15, 2009
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    if its not rattling, leave it alone.
     
  3. Systemlord

    Systemlord New Member

    Mar 28, 2013
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    I had my timing chain components replaced on June 28th 2013 (51,000 miles), after almost 2 years my tensioner didn't act up ever during a cold start, but after a 30 mile drive on the freeway the moment I came to a stop off the freeway I heard a very slight chain sound.

    I replaced it immediately with the final redesigned 5th gen tensioner which I compared with a new 4th gen tensioner, what a huge smoother difference in the plunger action! While I was at it I had the timing chain measured and all was good. To each his own, but I would always install a better manufactured part in my Mini if there were known issues with the current gen tensioner that was still in my Mini.

    Paid $150 to have the new 5th gen 82mm long tensioner installed, the sound vanished and hasn't returned.
     
  4. fngolfer

    fngolfer Active Member

    Apr 1, 2012
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    Need a tie breaker now.
     
  5. MCS02

    MCS02 Moderator
    Staff Member Articles Moderator Supporting Member

    Jul 31, 2009
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    If it ain't broke don't fix it!
     
  6. Grizld700

    Grizld700 Well-Known Member

    Feb 2, 2016
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    I installed the new 82mm tensioner last fall and it has been quiet since. very happy with the change. My old plunger didn't have much tension left and it was the last updated model!
     

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