1990 Johnson 30HP Waterpump Troubles

[Beaujester]

Hello Chaps,<br />Does anyone have a detailed picture of how the waterpump off this BJ30 EES comes apart and, more importantly, how it should all go back together?

 

[almost retired again]

Re: 1990 Johnson 30HP Waterpump Troubles

Hello Beaujester,<br />If you drop the lower unit (gearcase) the water pump will be located around the drive shaft, and held down by 4 bolts. Remove the housing by lifting it up. The water pump impeller should now be visible, pull it off the drive shaft and replace it. Re-install the housing by applying a slight downward pressure while turning the drive shaft clockwise, it should pop right on.<br />Sorry I don't have my parts manual at home, so no pictures.<br />Good luck

 

[oldboat1]

Re: 1990 Johnson 30HP Waterpump Troubles

...need to be sure you have the key or pin in place that "connects" the impeller to the driveshaft -- otherwise the shaft will spin, but the impeller will not.

 

[wilde1j]

Re: 1990 Johnson 30HP Waterpump Troubles

If you buy an OMC complete pump kit, they pack instructions with pictures in the package and include special grease and O ring used on the upper end of the drive shaft. Alternately , you could buy a shop manual.