Sorry, I don't agree with your analysis. The engine will not run hot with an overly lean condition and will not cook the spark plugs. The CIS fuel system will only operate within a very narrow range of air / fuel mixture therefore the engine will not run if the mixture is too lean or too rich. DMC Joe / DeLorean Services / <dmcjoe@xxxx> Web Site: <http://www.deloreanservices.com> ---------- > From: Marc A Levy <malevy@xxxx> > To: dmcnews@xxxxxxxxxxx > Subject: [DML] Re: Water Pump Blues! > Date: Sunday, October 24, 1999 10:32 AM > > A lean condition can cause the engine to run hot. It is a bad idea to > run the car this way, you can cause serious damage to it. If you have > run the engine this way for some time, pull the spark plugs and make > sure you have not cooked them. (I have seen a lean run engine kill a > set of plugs in less than 10 min of run time!) > > I would suggest you look for air leaks. Make sure all of the vacuum > hoses are connected, make sure there are no leaks at any of the mating > surfaces of the intake, and make sure there are no leaks at the cold > start valve. There are a number of hard to find vacuum hose > connections, so use the "map" on the inside of the engine cover to find > them all. > > The "large round valve" under the intake essentially measures the amount > of air going in to the engine, and regulated the amount of fuel based on > the amount of air. (Similar to a Electronic Mass Airflow Sensor in > modern cars). If too much air is entering the engine without going > through the "large round valve" then you will have a lean run > condition. There should be a small amount of air coming through the > cold start valve, and the vapor recovery system. > > Santo Commarato wrote: > <Problem SNIPPED> > > > > As you can see, I'm having a few problems this week =) Any advice or ideas > > on how to proceed would be much appreciated! > > ------------------------------------------------------------------------ > Before posting messages or replies, see the posting policy rules at: > www.dmcnews.com/Admin/rules.html > > To address comments privately to the moderating team, please address: > moderator@xxxx >