wide plug gaps . . . keep the ground electrode parallel? | FerrariChat
Buy

wide plug gaps . . . keep the ground electrode parallel?

Discussion in 'Technical Q&A' started by luckydynes, Sep 15, 2008.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #1 luckydynes, Sep 15, 2008
    Hey all,

    Is it really important to keep the ground electrode parallel to the center electrode when you open up plug gaps? Seems pretty difficult when you get up to and over .05" . . . that's why I thought I was heading down the wrong path before but I'm amazed at the difference.

    I have almost every tool in the book . . .the one that grabs the electrode between a groove leaves a mark in it which I thought might create a hot spot??? thinking too much? . . it seems I can manipulate the wire pretty good with it and then maybe file off the marks? . . . just seems like I'm really having to reshape it a lot to make it parallel . . . at wider gaps it seems like if I get it parallel it won't be completely over the center electrode either . . like the ground electrode isn't long enough for really wide gaps? . . make sense?

    thanks,

    Sean
     
  2. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
    3,664
    New England
    Full Name:
    David Feinberg
    #2 fastradio, Sep 15, 2008
    This is why NGK makes the "-11" series plugs. Here's a typical example:

    A BP6ES comes from the factory with a nominal gap of .025", which NGK states opened to .035"
    A BP6ES-11 comes from the factory with a nominal gap of .035", which NGK states opened to .045"

    Both types allow an expanded gap, while maintaining a parallel gap.

    David
     
  3. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #3 luckydynes, Sep 15, 2008
    ah haaaaaa!!!!
     
  4. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #4 luckydynes, Sep 15, 2008
    what about .06"?
     
  5. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #5 luckydynes, Sep 15, 2008
    also wanting to experiment with other plugs . . maybe no issue opening up the iridium 'cause tips so small?
     
  6. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,274
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #6 Rifledriver, Sep 15, 2008
    What he said.

    It is not as important with the near wire electrodes of a platinum but with a large diameter center electrode it should be parallel. There have been plier type plug setting tools around for many years to keep it correct but they only work with the large center electrode.
     
  7. luckydynes

    luckydynes F1 Rookie

    Jan 25, 2004
    3,931
    CA and OR
    Full Name:
    pit bull
    #7 luckydynes, Sep 15, 2008
    thanks gents
     
  8. fastradio

    fastradio F1 Rookie
    BANNED Professional Ferrari Technician

    Apr 26, 2006
    3,664
    New England
    Full Name:
    David Feinberg
    #8 fastradio, Sep 15, 2008
    Some of the Iridium plugs can be found in the "-11", wide gap, configuration...

    David
     

Share This Page