Thread: heating problem

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@cffisher- i am running a rpm air gap which is a dual plane, @1gary- the head is not cracked because i am not loosing any water nor is it pushing out the radiator @ glenn- I put a manual gauge in it because I dont trust the factory one. The manual gauge read alittle cooler than the infrared gun. The stock jets are 67 and I put 70s in there just to see if it would lower the header temps but it did just the oppisite. I dont think that the timing would do much because the timing dont affect just one side of the motor. But I will try it to see if anything changes. The water level is staying the same and not pushing out the radiator. I can run the motor with the cap off and it doing this problem and not push out water. I looked at the plugs when I changed them and they were black like they were fuel fouled but not wet nor smelt like fuel. I also pulled off the head to see if anything was blocking the water passages and found nothing. There was no hot spots on the head not the head gasket. nothing abnornal on the pistons and the cylinder walls looked great. The burn on the exhaust valve was the brown that you look for. The only other thing that I can think of is to swap the heads around to see if the problem follows. PUZZLING???