Actually it isn't raindrops themselves, but atmospheric moisture. Condensation too. Is death for HT. I would recommend anyone having a hard time starting their DeLo on such a morning to remove the distributor cap and dry things off in there, but K Jetronic manifold kind of rules that out. One time before my car's initial tuneup I did reach in there and zap it with a heat gun however (PO promised me a complete tuneup. I think it was plugs only). I remember GM's HEI well. That's one reason I stick with Delco plugs -- was a time that no one else's could hold up (and this is a Ford man talking). I think the original HEI's were only 30,000 volts or so. Still astronomical when everyone else was running 10,000-15,000. I've seen aftermarket coil modules as high as 45,000. Bill Robertson #5939 >--- In dmcnews@xxxxxxxxxxxxxxx, Bob Brandys <BobB@xxxx> wrote: > > Bill, > > Back in the mid 70s when HEI ignitions first came out, the initial > spark plug gaps were 0.060. Some were as high as 0.080. > > Unfortunately, when the ignition system get wet in the rain, these cars > would not start. > > A service bulletin came our reducing the gap to 0.045. I still use > this range on my 70s cars. > > BOB To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/