R55 Most liked posts in thread: Timing chain tensioner replacement

  1. oldbrokenwind

    oldbrokenwind Active Member

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    #3 oldbrokenwind, Aug 29, 2019
    Try working with the PO or dealer to find out about chain history. If the chain hasn't been replaced in awhile, I'd suggest using a chain tensioner tool to measure the chain stretch. It's pretty easy, doesn't require the valve cover removal, and might save you a catastrophic failure after replacing just a tensioner. Oil that's "a touch low" shouldn't cause chain rattle. Just don't let it get below the "add" mark. And, none of the popular service instructions available will provide troubleshooting help, just how to do service and specs.

    Here's a piece from an online procedure I found showing how to do the measurement I mentioned. Hardest part is the 0.6Nm, or about 5 inch-lbs.
    Screen Shot 2019-08-29 at 3.20.35 PM.png
     
  2. jcw88

    jcw88 New Member

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    #6 jcw88, Aug 29, 2019
    Thanks for the replies guys.

    I still ended up picking up the tensioner but I actually ended up calling Detroit Tuned (where that kit came from) and since I’m local I’m going to take it in and have the timing chain, tensioner and components done in early September.

    For the mean time, I added a quart of 5W-30 Royal Purple today. After I was told how to actually “operate” the dipstick (which sounds strange but having to turn the dipstick to get an accurate reading is new to me) we’re all topped off there. I’m hoping it will be okay for the next work week before my appointment to get the timing done.


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  3. MCS02

    MCS02 Moderator
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    #4 MCS02, Aug 29, 2019
    My timing tensioner when bad this year on my 2012 R58 JCW that has 56,000 miles on it. I went ahead and did the chain at the same time. It may not have needed a chain but better safe than sorry. I got this kit. I also rented the tool to lock the crank and cams from them.

    https://www.detroittuned.com/mini-n14-timing-chain-kit/

    MINI_Cooper_N14_Timing_Chain_Kit__90744.1545174874.jpg
     
  4. Metalman

    Metalman Well-Known Member
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    #9 Metalman, Sep 8, 2019
    I replaced my tensioner not long ago...
    Screw the old one out and screw the new one in...
    Torque to the proper setting
    No need to lock the cams.
    I did need to remove some of the intake hoses in order to get access to the tensioner.
    Took me about 1 hour total....
     
  5. MCS02

    MCS02 Moderator
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    #7 MCS02, Aug 29, 2019
    Good luck! Let us know how it turns out. Once the chain is done it’s time for Mods
     
  6. Crashton

    Crashton Club Coordinator

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    #2 Crashton, Aug 29, 2019
    Do NOT run your MINI low on oil. It will kill it. Change the oil now not later using a good quality 0w40 synthetic, also use an OEM or Mann oil filter. I hope this quiets your engine. Although these are not quiet engines due to the direct injection they use.

    It is possible you need a timing chain tensioner, but I'd try an oil change first.
     
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  7. 00Mini

    00Mini Well-Known Member

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    #5 00Mini, Aug 29, 2019
    Appears to be a quality kit from a very good vendor. Having the proper tools will make any job go faster and easier.
     
  8. jcw88

    jcw88 New Member

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    #8 jcw88, Aug 29, 2019
    Agreed!


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