Does your water pump work? Take off the radiator cap (COLD engine), start the engine then rev it up, if the water gets sucked down then it works, this might be more difficult if the cap is not on the radiator itself but on an expansion tank.
1997 Mazda 323 1.3L 5-speed (130,000km)
2006 Mazda3 1.6L 5-speed (40,150km)
1989 Ford F250 7.3L IDI non-wastegated turbo 5-speed
239,000 miles and counting, ORIGINAL CLUTCH, still going strong. (In USA, dont have it here in AT)
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