How do I know if my Mercruiser water pump is working?

How do I know if my Mercruiser water pump is working?

Pull the hose that feeds water to the engine. If water is flowing there the fresh water pump is working. If it isn’t you either have a clogged intake or a bad pump. A bad thermostat (stuck closed) shouldn’t be the problem because there’s a bypass on it that allows water to pass to the exhaust.

Do outdrives have water pumps?

“None of the Volvo Penta AQ series drives had a sea water/raw water pump in the drive. All are engine mounted pumps. This means that the entire suction side must be air tight. Keep the pump in good condition, and good impeller in the pump, all connections tight, and she’ll work great for you.”

How do you test a raw water pump?

Hook up the fake-a-lake, disconnect the water line to the raw water pump. Make sure water goes through there. Hook the line back up, disconnect from the trans cooler, make sure water comes out there. You should have seen a bit more pressure coming from the output of the raw water pump.

How do I know if my boat water pump is bad?

Reduced Water Stream from Cooling Water Outlet or Tell Tale When the stream of water is reduced, there could be a blockage. Insert a thin wire into the outlet to confirm your suspicion. If you have had the boat out previously without problems, you might have a damaged pump housing instead.

How do you know if you have a bad circulation pump?

Circulating pump not working?

  1. The water flow pipe isn’t hot despite the pump running.
  2. A water leak coming from the pump.
  3. The pump is making unusual noises.
  4. The pump casing feels hot.
  5. Some or all of your radiators aren’t heating up.
  6. You have no hot water.

How much does it cost to replace a boat water pump?

The average cost for a Water Pump Replacement is between $306 and $455 but can vary from car to car.

How often should you change impeller on inboard?

It is recommended that a boat impeller be replaced every two to three years or 300 hours, whichever comes first. However, it is suggested to also visually inspect your impeller at the beginning of each season for any signs of wear or damage.

Do outdrives have impellers?

It also has belt driven sea pump that I noticed has a leak out the side of it ( I think it is split from not being drained right). So I figured the lower impeller was bad and the sea pump as well. Now according to sterndrives the Bravo one does NOT have a impeller in the drive.

How do I know if my raw water pump is bad?

How to Tell if a Water Pump Is Bad

  1. The outboard motor is overheating.
  2. The impeller is living on borrowed time.
  3. There is a reduced stream of water from the cooling water outlet.

Where to replace your MerCruiser marine engine sea water pump?

Replacing Your Mercruiser Marine Engine Sea Water Pump Impel – YouTube Performance Product Technologies website http://www.perfprotech.com is one of the Top Rated online Mercury Mercruiser Parts dealers. PPT handles a variety of…

Can you change the water pump on an OMC sterndrive?

Since you have to disassemble the sterndrive and water pump to inspect the impeller, you might as well change the pump while you have the sterndrive apart. Changing the pump is a one-person job.

What kind of stern drive does MerCruiser use?

The company makes replacement sterndrives for MerCruiser’s® Alpha One® and Gen II stern drives and replacement outboard lower units for Mercury®, Johnson/Evinrude® and Yamaha®. Sterndrive Engineering’s Outdrives are not remanufactured, they are entirely new.

Where is the impeller located on a MerCruiser?

MerCruiser Diagrams: See various part diagrams for Alpha Sterndrive models with water pump impeller located in the lower unit as well as the Bravo Sterndive models where the Sea Water Pump Impeller is mounted within the engine mounted Sea Water pump. View Diagram s Step #1: Verify that the temperature gauge is reading accurately.