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krackerjack1951 · 06-22-2011, 11:46 AM

my 2 cents worth are overfilling the radiator..wrong or bad cap..if you fill the radiator full,the water heats up and expands and out it goes till it finds the happy point about 4 inches down..if you have the short neck cap,it will not seal..get yourself an overflow container just to catch the coolant in case you dont want the mess again,lower water level and get the right cap..it takes a few years to learn these problem cures.
i am running a flattie merc for a good many years,still makes me smile!

06-22-2011, 11:46 AM	#5
krackerjack1951 Senior Member Join Date: May 2010 Location: NC Posts: 521	Re: Flathead cooling advice wanted my 2 cents worth are overfilling the radiator..wrong or bad cap..if you fill the radiator full,the water heats up and expands and out it goes till it finds the happy point about 4 inches down..if you have the short neck cap,it will not seal..get yourself an overflow container just to catch the coolant in case you dont want the mess again,lower water level and get the right cap..it takes a few years to learn these problem cures. i am running a flattie merc for a good many years,still makes me smile!