I once heard a loud DINK when driving fast in my '66 Mustang, then when I slowed down the engine had a terrible miss. Back home I discovered that one of the spark plugs had lost its side electrode into the engine. Never had a problem and that material is pretty hard. Dave Delman 6530 & 2700 ohms 1f. Re: Possibly dropped copper washer from fuel line into engine cylind Posted by: "Peter Lucas" lucas@xxxxxxxx lucasxyzzy Date: Sat Apr 28, 2007 3:16 pm ((PDT)) While we are on this topic, what are people's opinions about the danger of ceramic material from a broken spark plug falling into the cylinder? I once took great pains to vacuum out a bit of this stuff. Did I save my engine, or would it have instantly been pulverized to atoms with no ill effect? I figured, better safe than sorry, but OTOH I imagine that spark plugs fail in this way all the time in running engines. Anybody know? --Pete Lucas VIN #06703 ************************************** See what's free at http://www.aol.com. [Non-text portions of this message have been removed] 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/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/dmcnews/join (Yahoo! ID required) <*> To change settings via email: mailto:dmcnews-digest@xxxxxxxxxxxxxxx mailto:dmcnews-fullfeatured@xxxxxxxxxxxxxxx <*> 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/