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We did a bit more testing. We disconnected the water hose running to that manifold. Ran pressurized air through without issue (though we don't have a point of comparison).
Next we started the boat up. The volume of water coming out the good (starboard) side was much greater than the bad...
Can you expand a bit on the water flow? Obviously it would be part of the cooling system. The engine was not overheating, and it appears only that one side of the exhaust was overheating. But I don't know where to begin to look for any obstruction.
First, there is no evidence of a flapper valve as shown in the first diagram (from a V-P manual). No pin or even holes for a pin.
The new bellows that blew shows evidence of burning. Shown in the 2nd pic. The exhaust pipe itself also shows evidence of overheating on that one side (but not...
My exhaust bellows blew out will pulling a towable at about 3000 rpm. This is the bellows that is inside the transom just past the exhaust elbow (see diagram). We could no longer rev past about 1500 rpm and we noticed a bit of water leaking from the bellows. The boat is about 10 years old and...
