It's good I like working on my boat. In my continuing saga I put my Chaparral in the water and and idled it at the dock. After 5 or 8 minutes I got red triangle alarm. Then rapid alarm. Got the Diacom and read the code. DTC 441 and 442. Exhaust manifold overheat. Volvo Penta V8 300-C-A closed cooling. I ran it on muffs the month before without issue but maybe not long enough. The boat had not been really run in the water (more than idle at the dock) since Sept 2020, last year it was a complete outdrive rebuild waiting for parts.
Took out sea water impeller and examined for cracks, damage and flexible rubber, looked fine so I reinstalled it.
Does anything think running engine of muffs with the water pressure and cold-ish temp water from a garden hose could mask problems in the sea water flow (partially clogged oil cooler) that would show up when the boat is in the water?
Took out sea water impeller and examined for cracks, damage and flexible rubber, looked fine so I reinstalled it.
Does anything think running engine of muffs with the water pressure and cold-ish temp water from a garden hose could mask problems in the sea water flow (partially clogged oil cooler) that would show up when the boat is in the water?