Volvo Engine Over Heating and Rear Sailfish Vents

[BanjoTim]

Hi:

I have a 2005 Glastron GS269 with a Volvo GI 5.7 engine. I am new to boating. The engine has been overheating and I am trying to figure out what is going on. I notice it is more when I have 5 people on board (two adults including me and 3 teenagers) setting in the back with one of the teenagers on a wakeboard. If I don't get up on plane quickly, the engine overheats. Any ideas?

Also on the rear of the boat there are two sailfish vents. I traced the hoses. They just lay loose in the bottom of the boat. What is the purpose of this vent? One of the hoses was laying in the water in the bottom of the bilge. I said to myself that cann't be good and raised it out of there. Did I do the right thing?

Thanks,
Tim

 

[SpinnerBait_Nut]

Re: Engine Over Heating and Rear Sailfish Vents

Re: Engine Over Heating and Rear Sailfish Vents

Mercruiser/Volvo/OMC I/O or Inboard engine problems forum.

 

[true blue]

Re: Volvo Engine Over Heating and Rear Sailfish Vents

I think your already in the right forum. Sounds like it may be your exhaust risers, though it is early. When the boat is lower, more resistance in a blocked riser. What's a sailfish vent? Maybe its your bilge blower?vent.

 

[Limited-Time]

Re: Volvo Engine Over Heating and Rear Sailfish Vents

Low speed over heating is generally due to a bad impeller.