I was wonder if there is a water pump in the out drive, my boat is overheating we are think it could have something to do with the water pump
The water pump is located in the outdrive. You should see a screen area on the lower end where the pump is loicated. I would guess the impeller needs to be replaced. You should stop running the engine 'till it is fixed.
So far the only other answer is dead wrong. Your Bayliner has a raw water pump mounted inside the boat. Depending on HP it might be on the front of the crankshaft, or opposite the alternator on the AQ120-140 motors. Then there is a second water pump, which circulates the water through the block. There is no 3rd water pump. None of the Volvo engines have a water pump in the stern drive. I repeat none! The Raw water pump is a rubber impeller. The Thermostat can also be blocked and cause overheating. In some cases it's actually rust/crud that block the exhaust elbows which in turn blocks flow. If you run it on a flush attachment you might be able to check blockages by the amount of water exhausted from the transom/drive. You can edit your question with your specific engine. It takes 7 to 10 min to replace the water pump impeller. You do not have to prime the water pump....ever. Do not however run with out water. Either being in the lake,Bay. ocean, or using the correct flush attachment.
