Quote:
Originally Posted by stiguy
I thought the thermostat opened by heat not a signal?
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Yes :-), but the flow from the bypass circuits goes to downstream side of the thermostat and forms "a signal" flow for the wax pellet, i.e. when the temp of engine (water pump) inlet (at this stage mostly bypass only) reaches the temp at which the thermostat
is set to start to open it will. Then it mixes in the cold flow from the rad exit and starts to control the engine inlet. In more traditional systems the engine exit temp is controlled.
Your rad may have deposits internally causing a dramatic decrease in heat rejection capacity (heat transfer) or your fans may not operate resulting in the same - but for a different reason - lack of air flow across the rad.
Does all this happen if yo have your AC on?
Have you tried to listen for bubbling is the reservoir (whn not spitting and overheating)?
/T