Gremlins in my coils !

[Alfisto@domain.elided]

Regarding the suspected coil problem in my 24V LS I am now definitely going 
to change them in the Spring/Summer. (My car started right up today as if 
nothing had happened - - even in 30 degree weather). I do have three spare 
coils - all used,  so I do not know just how good they are, which brings up 
these questions. How do these coils go bad and why ? Is it the extreme heat 
from the engine, poor workmanship, dirty contacts or what ? Is there any way 
the used ones can be tested prior to installation to ascertain that they are 
good ?
Graham Arlen

--
to be removed from alfa, see /bin/digest-subs.cgi
or email "unsubscribe alfa" to majordomo@domain.elided