Jump to content

Unofficial Home of Old Simplicity & Allis-Chalmers Garden Tractors

MPH

White powder on Spark plugs??

Recommended Posts

Nick
quote:
Originally posted by MPH
With nowadays gas, anybody have a clue what white powder deposit on plugs might mean?
Well, According to the book I have titled "Auto Mechanics: Theroy And Service" It says under spark plug color reading: "Extremely light deposits (white, yellow, pink) indicate combustion temperatures that are too high. Possible causes include vacuum leaks, lean mixtures, cooling system problems, and spark plugs of incorrect (too hot) heat range." Hope that helps.

Share this post


Link to post
Share on other sites
Guest
This topic is now closed to further replies.

  • Who's Online (See full list)

    • DaveTenney
    • SmilinSam
    • abu507
    • rokon2813
    • AllisLaporteb12
  • Today's Birthdays

    1. Carchief
      Carchief
      (57 years old)
    2. Geoff
      Geoff
      (56 years old)
    3. mohrds
      mohrds
      (51 years old)
  • Recent Status Updates

    • SonOfCreepfeed

      SonOfCreepfeed

      Thinkin' about this old girl.

      · 2 replies
    • Dean McFadden

      Dean McFadden

      Good morning peeps! I’m always searching for helpful information with my AC collection. Hope to find out new information and pass on my own experience in restoration. Here are some pics of my babies. I’m still looking for front rims for the 410 so yesterday I put the 310 wheels on took it for a drive. Working pretty good but still needs some carb work. Gotta get the 310 running next. Have a great day!😁
       

      · 1 reply
  • Adverts

×