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Re: Autolite 3923 washer
- Subject: Re: Autolite 3923 washer
- From: Tpcutter@xxxxxxx
- Date: Thu, 10 Nov 2005 09:23:51 EST
In a message dated 11/10/05 6:40:11 AM Eastern Standard Time, marr@xxxxxxxx
Thanks, all, for the instruction to keep the washers on when installing
the plugs. The packaging had advice for the fraction of a turn that
should be applied after 'finger tight', and gave different amounts based
on whether or not the washer was to be used for the particular motor
(gasket seat vs tapered seat). It made me wonder. As for the
'finger-tight' method, I'll be using a torque wrench instead.>>
The package is a generic label used for all Autolite plugs. Some plugs in
some automotive applications do not use a gasket, instead they rely on a
tapered seat to guarantee sealing and good heat transfer.
A safe rule of thumb for all gasketed spark plugs is simple: install finger
tight, then tighten 1/8 turn more for used plugs, 1/4 turn for new plugs the
first time only. The extra 1/8 turn forms the gasket the first time.
A lot of problems are introduced because vehicle owners feel comfortable
fooling around with their spark plugs. Spark plugs are technically sophisticated
devices, just like every other part of your engine and auxiliary systems.
Find out how to do it right before you go tearing in.