I found my leak. I capped 3 of the hoses and made up a fitting for the last coolant hose. I put on one end cap and stood it up on one end and filled the seawater chamber with hot water. Then I put about 20lbs of air to the remaining hose and instantly I could see the bubbles start coming. It has a pin hole on the plate that goes across the end of the tubes. I might be able to braze it up. I think Ill give it a try before I buy one. Im just glad I found it. Thanks guys for your input!!
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77 V20 cuddy with 170 I/O Mercruiser
72 16ft. Carolina w/a 25hp Evinrude
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