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Remove the side case and the water pump. Remove the right side case, and remove the impeller and shaft. Holding the back side of the impeller shaft with a wrench on the flat spots, you can now twist the impeller off.
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How do you change impeller on 5.7l mercruiser?
Please Note I am not a mechanic. I had the same problem and found this answer: Tools and materials required:Socket wrenches, 9/16th box wrench, torque wrench capable of measuring 10 foot pounds, Loctite for threads, Vaseline Petrolem Jelly, and of course a water pump replacement kit that includes the impeller, plastic housing, stainless steel back plate, two gaskets, and new bolts. Warning: The water pump is below the water line and when the lines to the pump are removed water will pour into the boat. I had my boat out of the water when I changed the impeller. Procedure: Loosen the idler pulley and remove the drive belt. Make note of the way the belt wraps around the various pulleys. Remove the two 9/16th bolts that hold the pump and bracket to the engine. You will now have enough room by pulling the pump out of the front of the engine to get to the two hose clamps on the water hoses. Mark the two hoses so you get them installed correctly. Loosen the two hose clamps and pull the hoses off the pump. I took the pump to my garage so I had access to a vise and wire brush. The wire brush was helpful in cleaning the bolt threads to make it easier to remove them. Mark or make note of proper position of the bracket on the pump. Remove the three nuts holding the bracket to the pump. Remove the 5 bolts holding the plastic pump to the metal end. Lightly coat the inside of the pump housing and the new impeller with the Vaseline. The Vaseline protects the new impeller as it will run dry for a few seconds when first starting the engine. Install the impeller in the new pump housing. Install the smaller gasket around the pump shaft, and install the new wear plate. Install the new gasket on the plastic pump, and then the plastic pump to the front half of the pump. Coat the new bolt threads with Loctite. Install the two shorter bolts and just snug them down. Install the remaining three long bolts after coating with Loctite. Tighten all boats in a cris-cross pattern. I set my torque wrench to 50 inch pounds, tightened all bots then increased the torque setting on the wrench till I reached 110 in. lbs. or just over 9 ft. lbs. Install the mounting bracket to the pump. Hold the heads of the bolts when tightening the nuts on the mounting bracket. Reverse the order of installing the pump back onto the motor. Install the drive belt and set the tension with the idler pulley. Make note in your maintenance log of the date and number of hours on the motor when you changed the impeller. Total time involved was about 2 hours. This is a maintenance that can be handled by most weekend wrench-turners.
How do you change a water pump on a v6 omega?
Drain the water from your cooling system. Remove the water pump return hose. Remove the water pump belt. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
How do you change water pump on 1994 trooper?
Remove the serpentine belt. Drain the water from the radiator. Remove the radiator hose from the water pump. Remove the water pump retaining bolts. Reverse the process to install the new water pump.
What does a water pump look like?
This question refers to the pump used to circulate coolant in water cooled engines. In passenger cars and trucks water pumps are typically mechanical (engine driven), but some have electric motors. The water pump is characteristic by having two coolant lines and a pulley that drives its impeller.
What else do you check after blocked hoses thermostat fans and radiator when your 1990 Honda Civic continues to overheat?
The IMPELLER on the water pump.The MIXTURE of Anti-Freeze to Water mixture.Blown head gasket.Correct TIMING.the FLOW on the Radiator that U already checked...
Where is the Volvo penta impeller located?
The impeller in a Volvo Penta is located inside the water pump. You will need to first remove the water pump to access it.
How do you change the impeller on the water pump on your 35 horsepower evinrude outboard boat motor?
First, remove the lower unit (there is a housing for the water pump). The drive shaft goes through the housing and turns impeller. Remove the housing, the impeller is on the shaft. Install the new impeller. When replacing the housing, turn the drive shaft clockwise to make it slide down over the impeller.
How do you change the water pump impeller on a 1998 evinrude 50 HP?
Remove the starter (3 bolts) then you will see the shift rod under the carburetror. remove the screw connecting the shift rod. there are 5 bolts holding on the lower unit remove the bolts and the lower unit can be removed. then you cam remove the water pump housing and replace the impeller.
What is the function of an impeller?
An impeller is used in many devices, such as a washing machine and water jet. An impeller is used to control the pressure and flow of water. It is found inside of a tube or a conduit, an impeller is a type of rotor.
Your 40 HP Yamaha outboard motor is not shooting out water only dripping what is the problem?
Like most outboard motors, the Yamaha is water cooled. It takes water in from the bottom of the prop housing and circulates it through the system to cool the engine and lower transmission. The pump that provides the power to do this has an impeller (usually made of neoprene). More than likely, the impeller needs to be changed. Also, if this has been an ongoing problem, there is no telling what other heat related problems will need to be addressed.
How do you change a 70 HP Yamaha outboard water pump?
The water pump on an outboard motor is located low down on the skeg. To replace it, you have to remove the lower unit. The impeller water pump is a housing attached to the upper unit, surrounding the shaft. It must be replaced exactly right, so obtaining a proper servicing manual is strongly recommended.
Where is the waterpump located on a 1995 Aurora?
The water pump is actually called a impeller and is located in a pump housing where the bottom radiator hose connects. You will need a special socket tool to remove the impeller once inside the housing.
Where is the impeller on a sand pump?
An impeller in a pump is the part that the motor spins that actually does the work of moving the water. Due to it's design when it spins it creates a vacuum that pulls the water in the middle of an opening on the front of the impeller and throws it to the outside where it is then channeled to the output of the pump.
How does water pump work?
The centrifugal pump works in the same way as you use the straw. As the engine starts, the impeller turns which forces the water around it out of the pump's discharge port. ... When the water hits the rotating impeller, energy of the impeller is transferred to the water, forcing the water out (centrifugal force).
How do you change impeller on 1966 Mercury 6hp twin?
First remove spark plug wires from plugs so engine does not start unexpectedly. Second remove lock nut under the trim tab just above the prop. There is also a metal screen this nut holds to strain the cooling water going into the engine. Next remove the lock nut just above the lower unit. This will also help split the lower unit away. next remove lower unit watching for the water pickup tube. Place lower unit in a secure area and remove the two nuts holding the plastic cover down. Then remove the 2 o rings on the drive shaft so plastic housing can be taken off. Remove metal plate over water impeller. Remove old impeller watching for the small pin that the drive shaft uses to turn the impeller. use a little motor oil on the new impeller. Replace metal cover and plastic housing while turning drive shaft clockwise. Press down replace lower unit.
Do you have to prime impeller to get water flowing through after changing?
Generally no. You do not want to run an impeller dry, so normally you will apply a light coat of grease to the impeller when you install it. On an outboard engine the impeller is on top of the gearcase and below the surface of the water so it will get water as soon as you start to crank the engine. On a sterndrive or inboard engine the pump can be located on the engine, but it is often mounted low (near the water level). If you crank the engine without starting it the impeller will "prime" itself.
How do you wire a 35hp Chrysler boat motor to make the water pump work?
You don't wire anything. the water pump is mechanical , consisting of a rubber impeller /impeller housing and copper tube running from the impeller housing to the engine block. The drive shaft runs from the gearcase through the impeller/impeller housing to the engine block allowing the intake of water to match the engine RPMs. if the water pump does not work it is most likely that the rubber fins broke off (extremely common for all outboards that are water cooled)
