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NGK BCPR7ES sparkplug gapping Posted by Peter [Email] (#2804) [Profile/Gallery] (more from Peter) on Tue, 21 Dec 2004 20:32:56 In Reply to: rough idle / replaced di cass & plugs, scott k, Tue, 21 Dec 2004 16:30:50 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Just replaced a set of old 6ES with 7ES. According to NGK, the plugs come gapped to .040 from the factory. 3 out of 4 were gapped per spec, one was quite a bit off. We gapped mine to .037, but there are lots of opinions on what gap to use on this board.
There is an explanation of why regap, the differences between 6ES and 7ES on the NGK web site, more on genuinesaab.com, and opinions on what plugs to use on this board, examples:
saabnet, http://www.saabnet.com/tsn/bb/NG900/index.html?bID=90411
taliaferro, http://www.genuinesaab.com/psi/files/sparkplugsdi.htm
ngk, http://www.ngksparkplugs.com/techinfo/
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