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Discussion Starter #1
The exhaust is showing large amount of moisture out of pipe. It was not low on antifreeze. The thermostat is good. It showed 150 psi on compression on each cylinder. Removed spark plugs all 3 were clean. Removed head , gasket looked good , 2 small spots across coolant passages very slight. The head looked good, I am wondering about a crack in head ,leaking past a passage into exhaust. Also thought about a leak at the throttle body on the intake. It seems like the engine is not coming up to temp. It did not show any codes.
 

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Wow, you went to a lot of work showing no signs of antifreeze loss. Condensation? what's your climate like? Did you sample(taste or smell) the moisture?
 

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Discussion Starter #3
Yes it is just condensation, and yes to the sample. you can see it running in the shop.
 

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Discussion Starter #5
Yes it did ,I removed the head ,cleaned and inspected . I installed new head gasket and intake and exhaust. New o ring on water pump . Will drive and check .
 

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Do you have a way to measure coolant temperatures accurately to verify it is coming up to temperature or not?

Considering the effort you've put forth, perhaps verify the opening point of the thermostat. Use a suitable size pot of water and a candy thermometer. Slowly increase the temperature and monitor the temperatures at which it begins to crack open and when fully open.

If the motor remains at a lower temp (stuck open thermostat) it will take a while for condensate to subside.

A coolant leak should be able to be detected with judicious monitoring of the coolant levels (radiator and tank).

There are crack detection kits available that help visualize the presence of a crack. Usually consists of a low viscosity spray dye that is allowed to sit for a period time to penetrate any cracks. Then a white chalky like spray is applied to the part. If there is a crack, the red dye will leach from the crack into the white chalky material and allowing the crack to become very evident.

Example of dye penetrant kit: Dye Penetrant Kit

One could substitute their own cleaner (brake clean, favorite degreaser, etc...) and purchase the dye and developer separately for a lower cost point.

Good luck!
 
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