jsea558
Member
- Nov 12, 2006
- 52
- Boat Info
- 1998 270 Sundancer
- Engines
- Mercruiser '06 496 Mag. Bravo III
Hi everyone, I've developed a new issue this season. I boat in saltwater. First trip out ran boat up on plane was at normal temp, 170-ish. Pushed throttle to about 3400 rpm (about 24-25 knots). Temp gauge started to slowly rise to 200+. And alarm went off. Backed down to displacement speed and temp. went back to normal. Repeated same senario same outcome. Pulled up to nearest beach, shutdown for couple of hours. Headed back to marina. Couldn't duplicate problem. It ran normal all the way back??? Next day ran again and it would only really heat up over 20 knots. Maybe bravo-itis, or seawater pump? Pump was rebuilt last season. I did find shells in aft side of oil cooler. Any help would be appreciated. Thanks