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Discussion Starter #1
Has anyone established if spark plug gaps on iridiums get wider with use as with standard plug types?

Aitch
 

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i had mine in for a year about 5000 miles and the old ones looked the same as the new ones i put back in
 

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the more stick you give it the faster they wear out, the gap will incresae over a period of time. ive done less that 3,000 and ive gotta re-new them....:cheers:

well with 350 odd horse power more than me its no suprise:eek:

would more bhp have more of an effect on the life of plugs?
 

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Discussion Starter #5
Thanks guys, and I have to agree, you could thermal lances in Kieth's and he'd burn them out.

I was just trying to decide whether to bother removing ours to check the gaps, but with our output probably not.

Aitch
 
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