Thread: my poor hot smurf

Originally Posted by northdude

try tm there will be new ones on there if you put an alloy plastic one in it completely flush the cooling system you dont want to mix old antifreeze with new stuff it will react and your new radiator will leak within a month and you cant repair it as as said youl be lucky if the head hasn't cracked if you find someone that knows what they are doing the only thing you can do to test the head without taking it off is to do a cylinder leak test cast iron heads don't like getting hot

1KZ-TE has a alloy head. A cylinder leakage test with the cap off should find a leak - it would pay to do two tests, one STONE COLD and one hot.