[s-cars] Did someone mention anti-sieze and Torsen? Loose plug redux
stevevoit at comcast.net
Wed Oct 31 14:34:00 PDT 2007
Finally, I get to share my spark plug theory:
Been a lot of historical chat about loose plugs, retightening plugs,
tightening then backing off and retightening plugs, ad naseum.
I have observed that most deep sparkplug sockets will touch the wall of the
head (at the bottom bore radius) when tightening the plug. I've bot Sears,
MAC, Lack-of-Value hardware store brands and they all do it. This
interference causes an erroneously high reading on a torque wrench or
calibrated arm. I bucked up the $60 or so for a Snap-on socket and
extension (has a positive lock, so it doesn't get left behind when you
withdraw the socket) and it has a much thinner wall - no interference. I
torque to spec and no worries.
Steve, thinkin' it's just metal after all, V.
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