Quote from: Bill Davis on November 23, 2012, 11:09:31 PM
Glenn,

Are you running a zero pound radiator pressure cap?  My 1951 uses only 4 pound
pressure cap.  I think that earlier cars used a zero pressure cap.

Unless the radiator has been changed, even a pressure cap will not pressurize the cooling system as the neck lacks the seat the cap needs to seal against.

Glenn,

Are you running a zero pound radiator pressure cap?  My 1951 uses only 4 pound
pressure cap.  I think that earlier cars used a zero pressure cap.

I replaced the sending unit also, I used an auxillary unit from the parts store, it came as a complete under the dash gauge.
Thanks
SDGlenn

you mentioned you changed the pemp guage, did you replace the temp sending unit?

Jim and Go.
Thanks for the info.  I developed a front oil leak at the timing cover, so I will be taking the radiator out again anyhow. I will take it back to my radiator man, and maybe have him take the top tank off and check that flow problem. Then try Go's suggestion while I have the radiator out, and check flush the engine again. I'll let you know how it turns out.
SDGlenn

Are you absolutely sure about your radiator? I had a shop tell me mine flowed fine but after my engine re-build including new water distribution tube I still had overheating problem. Finally took the radiator in to be re-cored. Turned out the old core was partially blocked even though it "flowed fine.". The new core solved my problem.
Jim Yergin

provided the oil passages had been cleaned up too while engine rebuilding, and temperature gauge is showing right,
maybe in the watertube passge You left debris.
Then flushing the waterways with the dist.tube out may help without taking the engine out again.

Good luck!

Greetings from D?sseldorf! Go

Maybe I have a problem. If anybody has simular problems or a cure please inform me. Thanks.
I re-built the complete engine (201 ci) in the 1939, including new pistons, had the head plained, the cylinders cleaned up, boiled out the engine and had new cam brgs, etc done at the machine shop. When I put it together I did not replace the water distribution tube (was a mistake) and the engine over heated every time I drove it. I did replace the distribution tube, that seemed to help, I can drive about 10 miles now before it get hot. However, if I stop for just a couple minutes it would cool down and maybe not get hot for another 10 miles.  Seems I was losing water out the overflow tube on the radiator, I had to keep adding fluid.  I built a water recovery system by attaching a rubber hose to the overflow and run it up to a gallon jug on the inner fender cowl. I am saving the water, it draws the water back to the engine when I stop.  But still seems to get overly hot in not to long a drive. The water recovery system works fine, I don't have to add water anymore. The radiator is good, it has great flow. I tryed with the thermostat and without it, now. The timing is right on. I went thru the water pump. I put on a new temp gauge. My head is getting sore from beating it against the wall. help.
Thanks
SDGlenn
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