Gapping
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Junior User
Joined: May 2013
Posts: 66
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Gapping
Hello, I put in new autolite 45 spark plugs and the parts jockey told me to gap them .044... The disgusting old plugs were gapped at .038. I put the .044 gap in, and it runs fine, but what actual gap do you guys recommend?
Thank you
Thank you
Cargo Master
Joined: Feb 2006
Posts: 3,008
Likes: 249
From: North Pole, Alaska
My 70-75 Chilton's lists .034 as the gap for a 240-300. That parts guru must have been thinking about electronic ignition when stating the gap needed to be .044. As the plug ages, the gap opens up leading to a loss of performance.
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