I have a 2007 Baja 23 Outlaw SST with 496 Mag. I took it out this past weekend for the first time of the season. Water was cold, but the air temp was hot (80-90 degrees).
After resolving a high temperature alarm issue I had with the closed cooling system apparently having air in it (pumped the water out and it was fine), I noticed throughout the day that the engine remained hotter than I remember in prior seasons.
At the lowest, the water temperature gauge read 160 degrees, but even at modest speeds and RPMS, the temp was up to 175-180 degrees when dropping speed for no-wake zones. This seems dangerously close to the 190 degree high temperature alarm zone. Is this normal, or should I be concerned about the impeller or water pump?
I only put 35-60 hours on per season, and replaced the impeller a season and a half ago. When I last replaced the impeller, it was just preventative maintenance, and the scoring wasn't bad.
Is this water temp. reading normal for the 496 Mag motor like I've been told, or should I consider replacing the impeller again... or worse yet, the entire water pump? If you suggest replacement, do you have any idea where I can get a new or refurb. water pump at the best price?
I appreciate your replies!
Lino Lakes, MN