Mazda Repair: overheating, blown head gasket, hydro carbons

Question
I have a 92 mazad 929. We have replaced the water pump, fan clutch (twice), thermostat (twice) withing the last month and a half. We are still having an overheating problem. It now over heats more than before. We add coolant almost every other day, but see no visible signs of leakage. The engine warms up very quickly, and when it does it sky rockets to the red hot line. It takes a long time to cool off. Do you know what this could be?

Answer
HI Nicole thanks for asking.
the next thing i would do is have someone do a cylinder leak test or check for Hydro carbons in the cooling system, i think there may be a possibility of a blown head gasket, cant be 100% sure but have that checkd then you will have the biggest concern eliminated.
Get back to me with your relusts.
good luck
Chris P