View Poll Results: Does anyone index spark plugs on their SC?

Voters
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  • Yes, I index my spark plugs on my SC

    2 18.18%
  • No, I do not index my spark plugs on my SC

    9 81.82%
Results 1 to 9 of 9

Thread: spark plug indexing

  1. #1
    Join Date
    Dec 2003
    Location
    Altoona IA
    Posts
    3,235

    spark plug indexing

    I was watching Horsepower TV yesterday and they were talking about indexing a spark plug. It occurred to me that this was done on the plugs that I just removed from my car.

    Who actually does this on their SC?



    some prior discussion on this subject.

    http://www.sccoa.com/forums/showthread.php?t=33472
    http://www.sccoa.com/forums/showthread.php?t=33567
    Last edited by 90blkbrd; 12-20-2009 at 11:05 AM.

  2. #2
    Join Date
    Apr 2002
    Location
    Karns, TN
    Posts
    1,328
    Mike, are you sure those are SC plugs? I don't see any blood on them.

    Mike
    1989 Cougar XR7 - [I]Modified[/I]
    1967 Cougar XR7 - untouched -
    2011 F350 Crew Cab Superduty FX4
    6.7 diesel 435hp/800 ft lbs torque
    2010 Harley Davidson Ultra Classic
    1965 Factory Five Challenge Road Race Cobra

  3. #3
    Join Date
    Dec 2003
    Location
    Altoona IA
    Posts
    3,235
    Quote Originally Posted by Super XR7 View Post
    Mike, are you sure those are SC plugs? I don't see any blood on them.

    Mike
    I swabbed all of them down and did a DNA test on them. The test was 100% positive hit on Dalke's DNA.

  4. #4
    Join Date
    Apr 2002
    Location
    Madison, Ohio
    Posts
    17,532
    Not bad for -what- 25K miles?

    Just looked at your garage - 400hp in whose wet dream???
    Last edited by XR7 Dave; 12-20-2009 at 01:07 PM.
    Quote Originally Posted by Miller View Post
    Ya thats why i tape mine down. People think its bc i dont have a moonroof seal (which is true) but its really to keep my roof from ripping off .
    Email me here.

  5. #5
    Join Date
    Apr 2002
    Location
    Forked River, NJ
    Posts
    2,092
    I did it when I did my big rebuild in 2003, haven't done it since.

  6. #6
    Join Date
    Dec 2003
    Location
    Altoona IA
    Posts
    3,235
    Quote Originally Posted by XR7 Dave View Post
    Not bad for -what- 25K miles?

    Just looked at your garage - 400hp in whose wet dream???
    Odometer shows 22192 miles, which is supposedly very close to when you installed the motor. So you were very close. I'm very impressed with the plugs.

    If you purchased the 2008 shootout DVD it has me winning the most HP with a M90 at 400 rwhp. I did catch this prior to the release of the DVD but it was to late.


    And you forgot to vote...but I pretty sure I know the answer.

  7. #7
    Join Date
    Jan 2003
    Location
    Woodbridge, VA
    Posts
    5,068
    Nah I don't index the plugs. May have once but not really sure.

    How do you know those were indexed, Mike? I don't see any marks on em.
    ~Chris
    SCCoA Member #1826
    Bettie Riding jack stands
    SCARlet on drag duty now

  8. #8
    Join Date
    Dec 2003
    Location
    Altoona IA
    Posts
    3,235
    Quote Originally Posted by BLOWN38 View Post
    How do you know those were indexed, Mike? I don't see any marks on em.
    Top 2 on the right have copper rings added to them. Notice they are different sizes.

    here are some you can buy on Amazon.com.

    http://www.amazon.com/Moroso-71900-S.../dp/B000COO0P0

  9. #9
    Join Date
    Aug 2009
    Location
    Junction City, KS
    Posts
    2,391
    I used to do that in my mustang.
    If you look at the plugs... the electrode is not in the same place on all plugs in relation to the start of the threads.

    Put a paint/crayon mark on the wrench portion of the plug where the OPENING of the elctrode is.
    Then run it in finger tight and see where it lands.
    I used to make sure it was facing into the combustion chamber, not facing the close side of the wall.

    Might have to try a couple/few plugs to get one that indexes in that cylinder, then repeat for all the others, might have to buy a few sets of plugs to get them all indexed...OR buy the index spacers.

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