Jump to content
Ultimate Subaru Message Board

Recommended Posts

hey i just checked my spark plugs.....the insulation on the inside of the plugs around the lower terminal was brown and chalky.......the car was overheating due to a head gasket failure so they may be the same plugs from then ......would this effect my mpg?.....the terminals seemed fine

Link to comment
Share on other sites

hey the deposits were mediocre but it was the melted middle point that got me....i looked at new plugs and the bottom terminal there is a point that goes up from it but the plugs i pulled out didnt have them....plus they had a .046-.048 gap when its supposed to be .044"....so i replaced them

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

 Share

×
×
  • Create New...