Spark Plug Gap

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Mar 26, 2004 | 02:07 PM

Fuzzball

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Staging Lane

Joined: Mar 2004

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From: Glen Burnie, MD

Spark Plug Gap

Do NGK TR-55's come pre gaped? or do I need to gap them, If so what do I gap them too?

Mar 26, 2004 | 04:09 PM

98Z-6Speed

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They are pre gapped, but you cannot rely on that. I have pulled them out of the box gapped as narrow as .023.

Gap them anywhere between .050 and .060 and you will be fine.

Mar 27, 2004 | 12:07 AM

waterbug1999

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From: Minnesota

Yea, dont trust the "pre-gap" BS. Mine ranged from .03 to .065. Just get a 1 dollar guage and get it at least around .055 and you cant go wrong!

Have fun!

Mar 27, 2004 | 12:19 AM

jrp

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From: Valencia, Ca

Quote:

Originally Posted by 98Z-6Speed

They are pre gapped, but you cannot rely on that. I have pulled them out of the box gapped as narrow as .023.

Gap them anywhere between .050 and .060 and you will be fine.

my first set of plugs from ls1speed werent pre-gapped but thy other ones from TR (IIRC) were, they all checked out at .055

Mar 27, 2004 | 12:32 AM

deznuttzz28

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From: REDWOOD CITY, CALIFORNIA

it doesn't hurt to double check the gap. i gap mine at .50.

Mar 27, 2004 | 07:51 AM

DANSLS1GTO

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From: Garden City, Michigan

I've been told I should double check the gap on my plugs from the factory - so after washing and waxing, that's what I'm up to today. If they are new, it's like $0.69 for a gap checker at the checkout of the local parts store and an extra 30 seconds per plug, so it's definitely worth double checking.
Dan

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