How do you change an impeller in a Merc Cruiser 205 lower unit? Do you need to be a mechanic?

Propeller, Cotter Key, Castle Nut and Washer.
How do you change an impeller in a Merc Cruiser 205 lower unit? Do you need to be a mechanic?
Four steps: drop the lower unit, disassemble the water pump, reassemble with new kit, reattach. Seriously, it's not rocket science, but get yourself a good service manual -- too many details to remember and type out here.
How do you change an impeller in a Merc Cruiser 205 lower unit? Do you need to be a mechanic?
It's not that hard of a job, but if you've never done it before, it would pay to get a Service Manual and read the lower unit sections before you start. It would take ten pages for me to tell you all of the things to do, like put the drive in farward gear before you unbolt it. Down to "marking" the trim tab before removal so it can be re-installed in the correct angle, once done with the impeller job. This is a repair that I've tought in adult education classes, and everyone could do, but you need to get the manual. Little goofs can cause big problems, $$$$$
Reply:No, get yourself a shop manual and a buddy, maybe one with some experience.





No sweat, be on the water in the afternoon.