thanks ill get a kit tomorrow for it hopefully if work allows i will post results asap your help in tbis has been pretty invaluable.My point about the stat, is that if you remove it you reduce that maximum flow the pump can force through the radiator, because it short-circuits in the empty stat housing. This will not cause overheating at low power levels, but is likely to at high power levels. I suspect that you head gasket is leaking between the cylinder sealing ring (fire-ring) and the cooling jacket. This will not result in any oil in the coolant and is not an unusual failure. There are 2 things you can do now: 1) get a test kit to test for traces of exhaust gas in the coolant. If it is positive, you have your answer. If it is negative, you still might have a head gasket problem because the tests are not that sensitive. 2) Go over the procedure in the shop manual for system fill and bleeding. Follow this exactly, with the engine off, the car level, and take your time slowly filling. Take it for a short drive to get it up to normal temp without going above moderate power level. After the system thoroughly cools off, recheck and/or adjust the coolant level in the tank. You now have a full system with not air bubbles if it didn't overheat on the short drive. If at this point you can drive easy without overheating, but the system overflows when driven hard, you have a head gasket leak.