In a message dated 99-09-13 13:02:31 EDT, frank@zk3.dec.com writes:
<< I just got off the phone an hour ago with a guy who's selling a GT6. He
told
an interesting story about an overheat problem that he just could not
diagnose, until someone told him to look at the plugs. It turns out that a
spark plug's heat range is governed, in large part, by the length of the
insulator, and that the Vitesse/GT6 head is sensitive to that. The plugs he
had in it were retaining heat the head in a spot where it has no cooling! I
don't know if the insulators were too long or too short, but by switching to
a
different heat range, the problem went away. >>
List,
I've been following this GT6 overheating thread since it's beginnings - with
interest - this latest reply sounds very convincing - if the head indeed has
an inherent hot spot in it around the plug holes, couldn't a "hot plug" cause
overheating? Coincidently, wouldn't it cause pinging or possibly run-on?
Chip Krout
'76 TR6 CF57822U (Being Reborn For Y2K)
'70 Spit Mk3 FDU78512L (Fun Driver)
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