I went out yesterday and pulled the end caps off of the heat exchanger to make sure all the water was out before it freezes and found antifreeze in the freshwater chamber on my 170 Merc. I checked the level in the riser tank looks like ive lost about 6 oz of coolant. Anybody got a good used 4in. 470 heat exchanger thats for sale? Or has anybody ever tried to have one of these repaired? I always drain it out of the petcock after running it and Im sure it was pretty empty and did'nt freeze. I cant figure what happened. It looks to be clean and in really good shape. Im stumped.
always something
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