First off, here are my numbers.
2001 Seaswirl 175 with Volvo Penta 4.3Gl
4012006802
3869053
The boat is new to me, and if I am having an issue with the RPM's at WOT. By myself it is only running at 3500 RPM's doing 49mph on a calm lake. This engine is supposed to be between 4200-4600 RPM's at WOT. It has a 14.25, 19 pitch SS prop which is on good shape. The motor runs perfectly with no hesitation or lag.
I was talking to a Volvo mechanic and explained all of this and he said that if the boat is running fine and I am happy with the performance that it is probably a tach issue and there is nothing wrong with the boat. I played with the switch at the back of the tach and cleaned the connections and there is no change in the RPM's.
My question is, should I try and investigate more or is it probably just a tach issue? I am concerned because I read on here that running your motor below the recommended tach range is really bad for the motor.
Any advice is much appreciated.
2001 Seaswirl 175 with Volvo Penta 4.3Gl
4012006802
3869053
The boat is new to me, and if I am having an issue with the RPM's at WOT. By myself it is only running at 3500 RPM's doing 49mph on a calm lake. This engine is supposed to be between 4200-4600 RPM's at WOT. It has a 14.25, 19 pitch SS prop which is on good shape. The motor runs perfectly with no hesitation or lag.
I was talking to a Volvo mechanic and explained all of this and he said that if the boat is running fine and I am happy with the performance that it is probably a tach issue and there is nothing wrong with the boat. I played with the switch at the back of the tach and cleaned the connections and there is no change in the RPM's.
My question is, should I try and investigate more or is it probably just a tach issue? I am concerned because I read on here that running your motor below the recommended tach range is really bad for the motor.
Any advice is much appreciated.
