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36fordguy · 07-10-2018, 05:08 PM

The radiator in post #22 is a late model radiator.The fins go from tube to tube. Early type radiators the fins slipped over the tubes .The tubes where more round and the tubes went from side to side. Early radiators took less force to push the water thru the core. All the pumps had to do was get the water up to the top of the radiator and gravity took over. Modern radiators are a complet different design for water flow and cooling. Modern Alum core radiators take about 12 lbs of pressure to force the water thru the core. The basic ford pumps will not do this so the water is being sucked at bottom of the radiator-The reducted pressure causes the water boil.

07-10-2018, 05:08 PM	#39
36fordguy Member Join Date: May 2010 Posts: 74	Re: Radiator questions ... The radiator in post #22 is a late model radiator.The fins go from tube to tube. Early type radiators the fins slipped over the tubes .The tubes where more round and the tubes went from side to side. Early radiators took less force to push the water thru the core. All the pumps had to do was get the water up to the top of the radiator and gravity took over. Modern radiators are a complet different design for water flow and cooling. Modern Alum core radiators take about 12 lbs of pressure to force the water thru the core. The basic ford pumps will not do this so the water is being sucked at bottom of the radiator-The reducted pressure causes the water boil.