Hi, Hope one of you guys can help explain this one ? Bought a 94 Rav about a month ago , noticed that i was losing coolant then noticed leaking from radiator , mechanic said it was history so got a new one fitted also rocker cover gasket as that was also leaking. All was sweet then noticed lose of coolant again , back to mechanic who thought faulty radiator BUT looks like radiator blew cause to much pressure saying that head gasket failed and cylinder is sending excess pressure through the coolant channel and thats the problem, well rather than spending massive bucks with mechanic we stripped the engine down ourselfs to find perfect head gasket NOT blown , compressing rings not cracked. Is there another way that the coolant is getting undue pressure on it to cause the radiator to " as my mechanic said balloon out " ? Also there is 2 styles of head gasket for this model they are slightly different 1 has a few more coolant holes than the original why ? Thanks for any advice Cheers