First of all thank you all for responding. This is a great forum.
No question it is overheating. I drove the car 6 miles home and it dumped a gallon of antifreeze, I measured it and got hotter than I like but NOT so hot that it was blowing steam. If I had not stopped and added water back into the radiator it would have continued dumping water and gotten too hot. I'm running without a thermostat. It is warm enough here that I don't need it.
I do have the manual. My mechanic had it when he changed the spring. From reading the manual it appears to be the spring that operates the "thermostat valve". (I scanned the pages from the manual ). The book states that this valve is shut when the car is first started, until it reaches 140 to 150 degrees then as it opens it allows the fluid to recirculate through the cylinder block and head. It definitely is not the spring in the hose.
I repacked the water pump. I have been frustrated with that because it still leaks. I may have screwed that up because I did not put any grease in with the packing so it may be sucking air and that may be why I could never get it to stop dripping. What type of grease should I use? Unless it is sucking air and causing a problem it is not the water pump that is dumping the antifreeze. I definitely know that the dumping of the antifreeze occurs from the overflow that starts at the cap and runs along side the radiator. And it starts shortly after the temperature reaches 140 on my gauge.
I looked but I could not find the "water jacket plate" so I don't know if I have one but since the engine was just rebuilt that would have been cleaned, correct? Is it on the block and surrounded with bolts? ( I only have about 200 miles on the rebuild. It has been overheating and I can't break it in. My rebuild guy was slow but very good)
After reading the manual and writing this I am more convinced that my mechanic was right the "thermostat valve" spring needed replacing but I believe he put the wrong spring in and it is still not working. AND/OR I need grease in with my water pump packing material.
Again, Any comments or suggestions would be appreciated
07261406.PDF