[s-cars] Replacing Spark Plugs after Compression Test

[Vincent Frégeac]

My plugs have been in and out many times. No loose plugs. I've never
used my torque-wrench either. I just torque them by feeling, as I've
done on all previous cars. So, I'm wondering: If people who use the
22lb.ft spec have loose plugs issues, could it means 22 lb.ft is a bit
low. I think this weekend I will check what my feeling reads on my
torque wrench to see how it compares to the 22lb.ft spec.



Vincent.

-----Message d'origine-----
De : s-car-list-bounces at audifans.com
[mailto:s-car-list-bounces at audifans.com] De la part de Dave Forgie
Envoyé : 3 févr. 2004 16:25
À : s-car-list at audifans.com
Objet : [s-cars] Replacing Spark Plugs after Compression Test

Richard (and others):  The washer on the F5PDOR plug is a crush washer.
AFAIK, once it is compressed, i.e. after you put the plugs in an torque
them to 22 lb ft, it can't be expected to its job if you remove the plug
and then put it back in.  I personally contend that some of the problems
with plugs being blown out of their holes is because people back their
plugs out to retorque them.  I suggest that retorquing should be a
tighten only exercise and that if the plugs come out for any reason, new
plugs (with new crush washers) should replace them.  And no, the crush
washers are typically not available separately.

In my humble opinion,

Dave F.

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