Optimax Water Pump Install

Hughsonbassin · Post by **Hughsonbassin** » Tue Apr 29, 2008 7:54 pm

Been about a year since my impeller has been changed. Wondering if anybody has tackled this job on there own. Did the one on my old Johnson 70 horse not to big of a deal. Another question does it really need to be done every year my boat maybe sits for 6 weeks max without being used but I have noticed the pressure is getting lower like 15 psi on plane is that good enough?

MIKE TREMONT · Post by **MIKE TREMONT** » Tue Apr 29, 2008 8:40 pm

If I remember correctly they suggest every 100 hrs or every 2 years.

I've done mine twice now. It's pretty straight forward. It's hard to believe that that little tiny keeper keeps the impeller in place while your spinning over 5000rpm, but that's all it takes.

Good luck.

plungers · Post by **plungers** » Tue Apr 29, 2008 8:46 pm

Once a year and don't forget to change your lower unit oil while your at it. Jim

Ally03 200xs · Post by **Ally03 200xs** » Wed Apr 30, 2008 9:10 am

Hughsonbassin wrote:Been about a year since my impeller has been changed. Wondering if anybody has tackled this job on there own. Did the one on my old Johnson 70 horse not to big of a deal. Another question does it really need to be done every year my boat maybe sits for 6 weeks max without being used but I have noticed the pressure is getting lower like 15 psi on plane is that good enough?

Here is a how to:

http://www.bassboatcentral.com/sttipswp2.htm