Re-gapping 3 ground electrode sparkplugs

[Mark R]

Bosch specifically states the W7DTC should not be re-gapped:
W7DTC OEPLUG GAP=0.032"; Do not gap. Gap is not adjustable.; Sell out
Part No. W7DTC, Reorder Part No. 7900

I used the bosch tool for gapping.  Wire guage, with a spludger type
of tool to bend the electrodes.

http://www.boschautoparts.com/Resources/TechnicalResources/
And see the gap illustration PDF.

Mark Rosenkrantz

On 5/17/07, Ado Sigal <a.sigal at bluewin.ch> wrote:
> There are feeler gauges and electrode bending tools, but if you don't
> find one, get yourself cheap set of feeler gauges and cut the top of
> those you need into strip to fit the space, and use that for measuring.
> To bend the electrode, tap it lightly with flat object twice or three
> times the weight. If you overdo it, return it back with the gauge you
> made, for which the very top shooed be made thinner, or use small
> screwdriver. But why bother, NGK plugs are so cheap, and if you don't
> sand blast them, the job is only half way done.
>
> Ado
>
> Al Streicher wrote:
>
> >Does anyone know of a tool to efficiently gap this plug, BP6ET  NGK (W7DTC
> >Bosch)? I don't believe in hitting them against a hard surface and bending
> >them with a needle-nose pliers. I saw one tool to do the job but it was for
> >a 18mm plug type (aircraft).
> >
> >Al
> >
> >
> >
> >
>
>
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