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[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [xj-s] Re: Cooling at idle
Chris wrote: >What' s the car' s problem though, and it cannot get rid of the engine heat >when sitting in traffic? I always thought that it would be more difficult >for the car to keep cool under high speed and constant acceleration with >second gear. > >So, I would assume that it is not the radiator' s fault but an air- flow >problem. If the car keeps cool at high speed, when the engine works hard, >with the radiator being efficient enough to dissipate that heat, then I am >really amazed to see that it cannot keep up with the engine at idle. I don't think so. Someone else opined that the problem was insufficient coolant circulation at idle speeds. I tend to agree. After rodding out my radiator, I find that the gauge will still creep up to the top of the 'N' when sitting in traffic on a hot day. Put the car in neutral, rev up the motor, and the temperature drops immediately, then starts creeping up again. This tells me that the coolant in the radiator is plenty cool, it just isn't moving through the motor in sufficient volume to keep the temperature down. IMHO, what we need is a smaller diameter water pump pulley, to run the pump faster at a given engine speed. Follow-Ups:
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