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RobR'35 · 06-05-2015, 10:49 PM

Interesting.
An idea I have is based on the high volume water pumps I now am running with thermostats against the inlet to the radiator.Possibly the opening and closing of the thermostats make the top of the rad. oil can,and higher suction rate of the pumps thru the radiator tubes. Maybe when the thermo's open a little longer is when the top tank really sucks in?
When I had the old style pumps on I never ran the car without the grill and hood off.So I don't know what kind of flex/oil canning was going on then.
I was hoping another member has run into this. Its an interesting problem.

06-05-2015, 10:49 PM	#42
RobR'35 Senior Member Join Date: Dec 2014 Location: Upper Peninsula, Michigan Posts: 604	Re: '35 Large Top Tank Radiator Interesting. An idea I have is based on the high volume water pumps I now am running with thermostats against the inlet to the radiator.Possibly the opening and closing of the thermostats make the top of the rad. oil can,and higher suction rate of the pumps thru the radiator tubes. Maybe when the thermo's open a little longer is when the top tank really sucks in? When I had the old style pumps on I never ran the car without the grill and hood off.So I don't know what kind of flex/oil canning was going on then. I was hoping another member has run into this. Its an interesting problem.