The Delorean PRV is an interference engine, but just barely. The valves will just mark the top of the piston if the cams are not turning and the crank is. That said, I've never encountered cam chains broken from wear: never. A greater danger is loss of oil pressure that will allow the chains to loosen and perhaps jump time. Even more dangerous is severe overheating that that can pop out a valve seat which will hang up in the combustion chamber, putting a hole in the piston or bending a valve or rod. That will break your chain. Warren at DMC mike p wrote: > Hi, I'm concerned about my timing chain going and more concerned about what will happen to the engine if the timing chain breaks. > > If the Delorean engine is an interference engine, then I understand it will be trashed if the timing chain breaks. My car has over 140K miles, although the seller and odometer said it only had 40K miles, and I am considering replacing the timing chain. > > Does anyone know what signs I should look for if the chain is about to go?, pinging? > > Thanks, > > Mike > #5781 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/