Originally posted by DemonSVT:
Feeler gauges are the only thing you should use.
Those POS gapper disc are garbage! They are not worth the metal they are stamped from.
The only thing I could possibly state to the contrary is plugs like the POS Bosch +2 or +4 style.
Otherwise you gap EVERY plug and YES no matter even if they say they are pre-gapped.
Agreed. I used to have a couple of old RX-7s, and the NGK plugs I put in those didn't look as if they could be gapped. Very strange looking plugs. Other than that, I've always gapped my plugs.
Edit: just found a picture of them. The second one from the right looks like what I put in my '85 with the 12A 1.1L carb'd rotary.  link The ones that went in the '87 looked like one of those 3 prong deals to the left of that. They were extremely weird, due to the fact that there is a leading plug and a trailing plug, I believe because the combustion chamber is so wide. (Why do I feel like I just hijacked my own thread?)
Last edited by Tavis426; 09/13/04 05:09 AM.
'99 SVT Contour #535/2760, born 11/30/98. Toreador Red / Prairie Tan
Wife's car: '00 Saturn LS2. Dk. Toreador Red (no joke) / Graphite
Sunday Bruiser: '67 Camaro rs/SS350 4 spd. Ermine White / Custom Yellow
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