1979 Subaru Cooling System Diagram
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Subaru Cooling System Diagram Wiring Diagram Mostly what changes is flow through the radiator. the other parts of the system will still have flow regardless of thermostat position. i would assume that it would be greater than normal flow rate during the warm up period due to the vacuum created by the water pump. Start the engine and operate the heater at maximum hot position and the blower speed setting at and the a c switch at "off". 16.run the engine at 3,000 r min or less until the radiator fan starts and then stops. caution: frequently check the engine coolant temperature in order to avoid overheat. 17.stop the engine and wait until the engine coo.
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Subaru Cooling System Service Repair Like. crewzer. 4275 posts · joined 2009. #7 · mar 7, 2012. a forum search indicates that subaru's p n for the thermostat for a '98 forester is 21200aa072. this is apparently the same p n used in the 2007 forester 2.5x, with the following specs, per the service manual: starts to open: 80 — 84°c (176 — 183°f) fully open: 95°c (203°f) . I don't know what diagram you are referring to, but the 2006 sti fsm (mechanism & function section, pp. co(h4dotc) 4) only shows 5 ports on the crossover pipe: block 1 (coolant in) block 2 (coolant in) upper radiator hose (coolant out) heater core (coolant out) throttle body (coolant out) you also have a redundant connection from the crossover. This is exactly how the vanagon refill tank functions; it accepts both coolant and errant air bubbles from the expansion tank when hot, but sends back only liquid coolant as the system cools. in this regard, the refill tank functions as a sort of one way valve, serving to ‘self bleed’ air bubbles out of the system to a great degree. Nspectionoperating condition:radiator fan operates depending on the radiator fan speed related to engine coolant temperature or the ra diator fan speed related to a c compressor load, whichever. is higher as a load condition. radiator fan speed relate. kgf cm2, 725 psi)diagnosis:radiator main and sub fans do not rot.
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