If you've pinged, how did you get rid of it?

Discussion in '80-Series Tech' started by whodat, Nov 11, 2005.

  1. whodat

    whodat

    Messages:
    679
    Media:
    1
    Albums:
    1
    Likes Received:
    588
    Joined:
    Sep 13, 2004
    Location:
    planets
    now that it's cooled off a bit my pinging goes away :rolleyes:

    it also goes away when I run 93 octane, $$$$

    tried 2 techron bottles followed by seafoam in the gas, still pinging
     
  2. alkaline747trio

    alkaline747trio

    Messages:
    4,577
    Likes Received:
    13
    Joined:
    Feb 2, 2005
    Location:
    Albemarle NC
    Have you checked your timing? If it is advanced some, you will get pinging, higher octane also does away with most pinging, but like you said $$$$
     
  3. Stevemcnash

    Stevemcnash

    Messages:
    17
    Likes Received:
    0
    Joined:
    Oct 28, 2005
    How long has it been pinging? Ping occures when part of the Air/fuel mix in the cylinder ingites before the rest does. This happens because when you increase the pressure of the mixture you also are increasing the tempature. So if you compress the mixture too much you will autoignite the gasoline, before it is ignited by the flame-front (caused by the spark plug). Higher octane simply has a higher treshold before it will autoignite. I'd be currious to see if the timing was off, that is the most likly cause, assuming it didn't start to happen after an engine rebuild or something. Just my 2cents. Good luck
     
  4. whodat

    whodat

    Messages:
    679
    Media:
    1
    Albums:
    1
    Likes Received:
    588
    Joined:
    Sep 13, 2004
    Location:
    planets
    whelp, chalk another one up to the guys on MUD. checked and corrected the timing yesterday, it was between 10-12...now 3.

    no pinging now, but then again it's not 100 degrees outside.

    no startup rattle this AM, is this a coincidence?

    love the MUD board,:bounce2:
    wd
     
  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.