We went shrimping the other day and ran out an hour or so @ 3800 rpm the temp was running 190. Is this an issue ? Total timing is at 34 deg. If I back down to 3300 rpm it drops to 170. . For the boat it's a 79 sun dancer 24' with a 260. Closed cooling system that pulls sea water from the drive. Everything was new last season , engine, drive could the impeller be bad already. The boat has 25 hours on it after the overhaul and it does set in the salt water
