Any more than a tap and you could make yourself a problem if its actually stuck. To remove the impeller and replace the water seal do this.
Remove the four water pump 8 x 40 mm bolts and washers and remove the pump assembly over the vertical shaft.
How to remove impeller from honda water pump. Slide the water pumpimpeller housing down the shaft and align the woodruff key slot on the impeller with the woodruff key. Align the slot and key then rotate it into place. If this proves to be difficult remove the metal impeller race from the plastic impeller housing and try again.
ALL SCREWS ARE RIGHTY TIGHTY LEFTY LOOSIE Due to filming some shots in selfie mode and producing these all on my cell phone some images may be back. How do i remove the water pump pulley or impeller. You dont remove the impellerThe new one comes with itJust remove the water pump and install the new oneHope this helpsGood luck.
Posted on Nov 12 2010. Washers and collars attaching the water pump. Gently pry the pump housing and remove it from the vertical shaft.
Do not remove the pump base. Remove the Woodruff key and set aside for reuse. Check the impeller liner and cover for wear or cracks.
Use the service kit 1 if the impeller is the only part worn. The newer waterpump shafts have flats on them to hold with a wrench while you loosen the water pump impeller the older ones dont. Ive had luck two different ways.
One is like Pawpaw said. Leave the right case cover on the engine with a penny or. Now that you have the rope in the cylinder you should be able to turn the impeller counter clockwise to remove it.
The rope will jam the piston the crankshaft will stop turning and you can loosen the impeller with a strap wrench. After the impeller is removed go ahead and replace the seal. For current researchers the simple way to remove a seemingly stuck impeller bolt is to use a small impact and just tap the trigger andor the lowest torque setting.
Should back right out. Any more than a tap and you could make yourself a problem if its actually stuck. More than likely is just tight enough to turn the gear.
I show the tool I made to use as a spanner. Its 14x1x3 with a bolt welded into a 12 hole in the middle. A 34 socket and an impact is also needed for r.
Remove the trim tab 8 x 20 mm hex bolt and washer. Remove the 8 x 65 mm hex bolt four 10 x 40 mm hex bolts and washers and remove the gear case assembly. With a 10 mm wrench remove the four impeller housing 6 x 40 mm bolts and washers.
SPEED SENSOR TUBE 8 x 20 mm HEX BOLT If the trim tab has been adjusted where the L marks do not align mark. Unscrew the impeller from the engine shaft of the pump. Turn it counterclockwise and remove.
You can slightly hit the impeller with a rubber mallet to loosen it on the shaft. Remove the nut which holds the spring and seal assembly on the engine shaft. I just wanted to add that if youre removing the side case you can remove the impeller by holding the impeller shaft with a wrench.
The same goes for assembly. That way you dont have to go through holding the bike in gear and putting the brake on. But if the case is staying on and youre only replacing the water seal then you will have to do that.
Using some flat cardboard cut from a cardboard box make a template of the bolt pattern of the water pump housing the clutch cover and the right side crankcase cover. Punch holes in it to receive the bolts. Remove bolts from the water pump housing.
Remove housing to expose the impeller. Remove impeller using a 10mm socket. Water Pump - WB20XN NF.
As one of the most impressive pumps in Hondas range the WB20XN Volume Water Pump has been designed with the end user in mind for whatever application you want to use it in. Honda 4-Stroke GX160 engine that powers the WB20XN ensures easy starting easy usage outstanding fuel economy low emission and long-lasting. Have you ever changed a water pump impeller.
If so they are all about the same the only differences if the shift shaft separation. On the Honda place in reverses and loosen the small jamb nutjust enough to loosen it about 12 down the leg you will see it. To remove the impeller and replace the water seal do this.
Remove the water pump cover This is the little cover on the water pump with about 4-5 screws. Now you will see the impeller and it has a little 10 mm I think nut fitting on it. Put the bike in gear and apply the rear brake.
Now unscrew the impeller with a socket wrench. To clean the foam filter wash it in a non-flammable solvent or warm water and a detergent and rinse thoroughly. Once the filter has dried soak it in clean engine oil and squeeze out any excess.
To remove the spark plug disconnect the plug cap and clean out any dirt around the plug. Use a spark plug wrench to unscrew the plug. Using a 10 mm wrench remove the four 6x28mm bolts washers and distance collars attaching the water pump.
Gently pry the pump housing and remove it from the gear case housing. Check the pump impeller and cover for wear or cracks. Use the service kit 1 if only the impeller is worn.
Use the rebuild kit 2 if the ho using andor the impeller cover. Your best bet will be to purchase a service manual or download a copy the basic things you will need to do is remove the entire case and if it is the water pump it wont be hard to replace the bearing but if that bearing is gone like i assume then both side case covers will need to be removes the you will need to take off the nut on the shaft remove the entire shaft remove the bearing and replace it and. Will stay connected to the gear case so remove the gear case without twisting and then place the unit on a workbench.
Remove the four water pump 8 x 40 mm bolts and washers and remove the pump assembly over the vertical shaft. Clean all parts and check the impeller liner and cover for wear or cracks. TYPE KIT CONTENTS PART NUMBER Service kit.