Rebuilt 59AB Heating Problem

Have you checked the actual temp with something like a heat gun? Or are you going by the dash gauge?
 
I have checked the temp with an infrared thermometer. It's around 200 at heads. I'm also running a mechanical type auto meter temp gauge mounted under the dash. I'll send the distributor back to be placed on the timing machine if this doesn't help.
 
Have you ever considered that, since it is a fresh engine, it may just be tight? I say this because I had an O/T engine rebuilt and for the first several hundred miles, I could not let it sit and idle, or the temperature would keep climbing. I was about to get all upset and come down on the builder, but noticed that things seemed to be improving. By about 800 miles, the overheating problem was gone. The engine now has a few years and several thousand miles on it, and it runs perfectly.
 
tubman said:
Have you ever considered that, since it is a fresh engine, it may just be tight? I say this because I had an O/T engine rebuilt and for the first several hundred miles, I could not let it sit and idle, or the temperature would keep climbing. I was about to get all upset and come down on the builder, but noticed that things seemed to be improving. By about 800 miles, the overheating problem was gone. The engine now has a few years and several thousand miles on it, and it runs perfectly.
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Could be. When I get the radiator back in I'll drive it a bunch and monitor temps.
 
I spoke with the radiator shop today. The radiator was choked up with rust and crud. They are going to let it soak over the weekend. When they flow test it Monday he will call with the results and let me know if they recommend a new core.

Meanwhile, this weekend I will take a garden hose and flush the block as well as I can with the radiator out.

This could be the cause of the slight run hot problem. It certainly was not helping to keep the engine cool.
 
Update on my high engine temperature situation. I got the radiator back from the radiator shop. They soaked and boiled it out for 7 days. The report was that is was full of rust like crud. The tubes were choked up and not flowing well.

I reinstalled the radiator and filled with water only for test purposes. I then drove the car (1947 Tudor) for about 40 miles. Outside air temperature was around 85 degrees. At highway speeds 55-60 mph it would run 175 degrees (according to my mechanical auto meter temp gauge). In town at 35 mph the temp would drop down to 160-165. After the engine was at operating temperature and at idle it would climb to between 180-185.

Thus far it seems that my temperature problem was due to a poor flowing radiator. I hope I have this issue resolved.
 
lotsagas4u said:
Great news, I would run straight water for awhile.
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I thought the same thing. I'll keep straight water until it gets cold. The car stays in a heated garage but I'll put a 50/50 mix in eventually. In the mean time I'm going to drive it as often as possible.
 
Seth Swoboda said:
Update on my high engine temperature situation. I got the radiator back from the radiator shop. They soaked and boiled it out for 7 days. The report was that is was full of rust like crud. The tubes were choked up and not flowing well.

I reinstalled the radiator and filled with water only for test purposes. I then drove the car (1947 Tudor) for about 40 miles. Outside air temperature was around 85 degrees. At highway speeds 55-60 mph it would run 175 degrees (according to my mechanical auto meter temp gauge). In town at 35 mph the temp would drop down to 160-165. After the engine was at operating temperature and at idle it would climb to between 180-185.

Thus far it seems that my temperature problem was due to a poor flowing radiator. I hope I have this issue resolved.
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Anytime a radiator is out of a car, it must be 1. cleaned/rodded, etc.. or 2. Refilled with coolant/water with outlets covered while it sits.. If not done, the old coolant with crud will chrystalize in the passages causing blockage.. this is GUARANTEED... I learned the hard way... :eek:
 
I think I will go ahead and put a 50/50 mix of anti freeze in the system as to avoid any future rust issue with water.
 
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