Due to neglecting my plug changing duties, I got about 100,000 miles out of one set. No problems at all, though the center electrode was worn down to a nubbin. Karl Wolz ----- Original Message ----- From: "Jeffrey R" <Oxroad@AOL.COM> To: <vanagon@GERRY.VANAGON.COM> Sent: Thursday, October 05, 2000 12:47 PM Subject: Gapping Bosch Super W7DTC spark plugs?
> I'm installing a set of Bosch Super W7DTC spark plugs in my 83.5 Watercooled > 1.9 liter. The spark plugs come pre-gapped at 0,8 mm. This is the spark plug > with three contacts (?) that surround and serve the electrote. Where a normal > spark plug has only one--the W7DTC has three. (I'm not sure what you call > this contact--but it's that normal little tab that you gap between it and the > electrode on the spark plug) > > Anyway the W7DTC are set at the factory and I'm assuming should be installed > as is at 0,8mm-- bentley calls for a gap of 0,7 + 0,1 mm --so this seems to > fall in that range. (How exactly you would re-gap the W7DTC I'm not sure. It > looks complicated and certainly couldn't be done with a flat feeler guage?) > > Anybody had good experiences with these plugs? > > Jeff > 83.5 Westy > temporarily in NV |
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