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<p>This is the Healey List, we can leave no cans of worms unopened!</p>
<p>Given that 12,000 miles is probably 10 years or more for most
owners, plugs are probably a 'lifetime' buy. If your engine runs
good, not unreasonably rich and doesn't burn a lot of oil pull
them out, clean and re-gap them every 5K miles or so. If they're
showing wear--e.g. 'rounding off' of the center electrode and/or
erosion of the side electrode--chuck them and install new. They
are relatively cheap, and the labor rate is approximately the
same.</p>
<p>Here's a shot of 'new' plugs from my BJ8 at 5,200 miles:</p>
<img moz-do-not-send="false"
src="cid:part1.38C2D246.BD1331C6@comcast.net" alt="" width="640"
height="480">
<p>Bob<br>
</p>
<div class="moz-cite-prefix">On 2/4/2019 5:56 AM,
<a class="moz-txt-link-abbreviated" href="mailto:simon.lachlan@alexarevel.plus.com">simon.lachlan@alexarevel.plus.com</a> wrote:<br>
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<p class="MsoNormal">I see that the BMC manual suggest replacing
the plugs every 12,000 miles, they having been checked every
1,000 miles per the same book.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Do you guys hold to that approximately? By
that I mean…..all things being equal and the plugs looking OK
& working OK, only swap at +/- 12,000 miles. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Maybe plugs last longer these days? Most
things don’t in my experience.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">For what it’s worth, I’m running NGK’s
BP6ES. As to the gap, I’ll leave that can of worms closed for
the while!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Simon<o:p></o:p></p>
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