"I have a 1998 Bayliner with
"I have a 1998 Bayliner with a Mercruiser 5.7 with ThunderboltV ignition, when I'm on the move for about 20 minutes at around 4000 rpm I get a alarm, the temp is around 175 180, oil pressure is around 40psi and the trim reservoir is fill up to the full mark. On occasion when I reduce the speed the temp drops down to 140 then comes up to 175. At what point should the alarm go off ? over 180 ?? Its been driving me batty, I have installed a new impeller in the lower unit last summer. Any help you can give me will help."
"I have a 1998 Bayliner with a Mercruiser 5.7 with ThunderboltV ignition, when I'm on the move for about 20 minutes at around 4000 rpm I get a alarm, the temp is around 175 180, oil pressure is around 40psi and the trim reservoir is fill up to the full mark. On occasion when I reduce the speed the temp drops down to 140 then comes up to 175. At what point should the alarm go off ? over 180 ?? Its been driving me batty, I have installed a new impeller in the lower unit last summer. Any help you can give me will help."