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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [xj-s] Dual drive water pump (was overheating)
Robert C. Warnicke wrote: > MDYPLLC@aol.com wrote: > > > > Maybe relevant to the recent discussions on overheating, there is a "dual > > drive" water pump out there that incorporates an electric drive as well as the > > regular connection to the engine. > > Of course, the website doesn't list which one fits a V12, and it seems > like a lot of cash for a couple of clutch/pullies and a dc motor. > Although there is no way I could fab something like that. OK guys, lets try some wishful thinking here. It could be possible to put something like a fuel pump in the heater line (assuming it will pump coolant is not too farfetched. It has more lubricants than gasoline does and assuming it can survive the heat). Under normal conditions, it is out of the loop (heater valve closed) but once the car is off, we open the valve to let coolant thru, operate the pump thru a timer and we have circulation. It might not be enough to go thru the entire system but its a start. The question is how much coolant will get past the regular water pump since it is not moving. Of course, while we are wishing, lets add a clutch to the water pump to allow it to free wheel when the vehicle is off. Obviously, we would have to use a non-FI electric pump 7-12 psi rather than a FI pump at >36 psi to protect the system. Hot shutdowns would be eliminated, dropped valve seats would be a thing of the pass and the person who puts this idea to design and production could be a very rich person. Of course, I'm sure they would be willing to split the royalties with everyone on the list. Ed Follow-Ups:
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