hohieu Posted July 18, 2006 Share Posted July 18, 2006 I just changed my air filter and spark plugs after 32K miles of service. The plugs were worn out of spec at .050" (1.27mm for our internationals). Specified gap is .039"-.043"(1-1.1 mm). Nonetheless, I didn't notice any driveablity issues or a dip in fuel mileage. Does anyone regap their plugs at 15k miles or so? Link to comment Share on other sites More sharing options...
blitz Posted July 18, 2006 Share Posted July 18, 2006 I gap 'em and rotate 'em. As the gap grows, so does the likelihood of an external (shunt) misfire. **** ******! Link to comment Share on other sites More sharing options...
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