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do i need to gap the copper plugs NGK BKR5E-11?

   
Old Jun 15, 2004 | 09:02 PM
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do i need to gap the copper plugs NGK BKR5E-11?
are they pre-gapped? or do i have to gap them myself?
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Old Jun 15, 2004 | 09:17 PM
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They are pre-gapped but you're asking for trouble if you don't check. There's always the chance they went out of spec during shipping.
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Old Jun 15, 2004 | 09:23 PM
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whats the spec for it?

edit: haynes says 0.043 inchs.
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Old Jun 15, 2004 | 09:25 PM
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when i changed my coppers, i gapped them. why take the chance?
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Old Jun 15, 2004 | 09:27 PM
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.039"-.044"
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Old Jun 16, 2004 | 09:39 AM
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+1 to everyone's comments.
They should be pre-gapped, but you should always check.
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Old Jun 16, 2004 | 09:59 AM
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gap them .004 smaller for each 50 hp above stock if you are boosted or or running N2O. I believe .043 is what I measured them at from the box. I'm at .036.
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