MR2 Mk2 Thermostat

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nemesis450
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MR2 Mk2 Thermostat

Post by nemesis450 »

I need to know which way coolant flows when the thermostat is open, does it flow out from the engine or into the engine :)


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Re: MR2 Mk2 Thermostat

Post by jimi »

Both ;) when the thermostat opens coolant flows from the engine to the radiator and returns from the radiator to the water pump.
Go to this thread https://www.mr2oc.co.uk/forum/198/80372.html and download this Toyota engine manual from PoohBear's post
3S-GE, 5S-FE & 3S-GTE Engine Repair Manual RM164E go to page CO-2 of the manual for coolant flow diagrams
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