Engine Drivetrain 1st Gen Cooper S Simple question: How much torque on Plugs

Discussion in 'Tuning and Performance' started by Sin MINI, Jan 1, 2011.

  1. Sin MINI

    Sin MINI New Member

    Jan 1, 2010
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    Yes, I did a search. Nothing

    Can anyone tell me proper torque wrench setting for spark plugs? I bought a cooler set and need to install them.

    Any tips for someone who's never changed plugs before? Is it any more complicated than old plug out/new plug in?
     
  2. Crashton

    Crashton Club Coordinator

    Jun 4, 2009
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    Tip #1.... Do it with a cold engine!

    Tip #2.... Pull the plug wires by the boot not the wire.

    Tip #3.... If they are hard coming out, crank them back in a 1/4 turn & then back out. Keep doing that until they are out.

    Tip #4.... I always use a very tiny bit of anti-seize on the plugs. Some folks choose not to.

    Tip #5.... I use 21 FT/LB of torque.

    These tips are for an R50-R53 MINI.
     
  3. Nitrominis

    Nitrominis Banned

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    Naturally I am always curious why the cooler spark plugs???

    Tip #4 very important...... use anti seize always.

    Confirm with the **manufacture of the spark plug if there is any specific torque value for their spark plug other wise use BMW/MINI specifications for your year and model..

    Factory for 2002-2005 Cooper and S... **Spark Plug to Cylinder Head 27 Nm (20ft-lb)
     
  4. Ofioliti

    Ofioliti New Member

    May 9, 2009
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    Yet another tip...

    When screwing in the new plug, I use a firm straw attached to the top of the plug. It makes it easier to feel the plug screwing in properly without striping it. :Thumbsup:

    (Of course, torque it properly with the wrench after finger-tightening it with the straw.)
     
  5. Crashton

    Crashton Club Coordinator

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    Very good tip!:Thumbsup: I use a rubber tube thingymabob that the MAC tool guy gave me years ago. It makes it so much easier to start the plugs back in.
     
  6. minimark

    minimark Well-Known Member

    Jun 24, 2009
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    Good tip!

    Some even use a section of fuel line hose...
     
  7. mini_racer

    mini_racer Well-Known Member

    May 4, 2009
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    As mentioned in the other thread at the other place, 1st Gen cars spec 20ft-lbs (27NM) of torque for the plugs.

    I have seen several lively debates on the use of anti-seize mainly centered around side effects such as heat transfer and torque settings. MINI does not spec to use it but many do anyway. I personally use just a tiny bit, unless I think there is still enough on the threads in the head from last time.

    Wire removal and corrosion tip:
    - Use a back and forth twisting motion when you grasp the boot to remove the plug wire. Just push straight on for reassembly.
    - On many cars the terminal at the coil for the #3 wire corrodes. You might want to take the wires off one at a time, and wire brush the terminals.
    - I reassemble with a dollop (maybe the size of a small pea) of dielectric(Silicone) grease on the coil terminals as well as the spark plug terminal.
    - Also, I make sure to tighten the Aluminum terminal on the spark plugs, they always seem loose on a new plug.
     
  8. Dan@GrassrootsGarage

    Sep 30, 2009
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    NGK specifies 30Nm on the box, BMW TIS specifies 27Nm so that gives a range of 20-22 Ft.lbs. I use 22 personally and only a small amount of anti-seize.

    part of the job of the spark plug is to remove heat from the cylinder. The heat range refers to the amount of heat that the plug can remove, so a colder plug removes more heat, a hotter plug removes less. When we increase the amount of boost (via smaller s/c pulleys) we also increase the amount of heat created, so it needs to be removed to maintain an optimal cylinder temp.
     
  9. Thumper460

    Thumper460 Active Member

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    Dan@grassrootsGarage.. about time you started Posting!! Good to know!!
    Now back to the thread..

    Just me......................

    Thumper
     
  10. ScottinBend

    ScottinBend Space Cowboy
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    Depends on the plug......if the plug has a crush washer (most do) then it is about 1/4 turn past finger tight. If it has no crush washer it is about 1/2 turn past finger tight.
     
  11. Nitrominis

    Nitrominis Banned

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    #11 Nitrominis, Jan 2, 2011
    Last edited: Jan 2, 2011
  12. jiminni

    jiminni Well-Known Member

    May 7, 2009
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    So has anyone used these yet? They do look interesting. Not sure why the pics are so big? They came off my iPhone.

    [​IMG]

    [​IMG]

    [​IMG]
     
  13. Nathan

    Nathan Founder

    Mar 30, 2009
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    I've used them, was not really enamored with them at the cost. Pulled a 10K miles and the looked like crap, went back to a less expensive NGK and happy.
     
  14. ScottinBend

    ScottinBend Space Cowboy
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    +1 NGK JCW oem plugs
     
  15. jiminni

    jiminni Well-Known Member

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    Thx for the info :Thumbsup: I will stay away from them also.
     
  16. jimz68

    jimz68 New Member

    May 11, 2009
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    Hmmm.......
    I've had really good luck with mine.
    Like them better than the NGK's.
    Jim

    Oh! And to stay on topic, 20-22 Ft-Lbs for me, too.
     

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