Well said Split.

As far as 'rules' . . . well perhaps a guideline . . . every 50 hours 'check' ,and 100 hours 'replace'. . . . for me that means check the impellers one year and replace them the next year.

If you have a sea water strainer in line before the sea water pumps, then it can extend the life of the impeller by about 2 X.

In my 242, I had to remove the sea water pump in order to have a decent job of replacing the impeller. In my 330, I can change the impellers without removing the pumps. All depend on the access. The 292 might be a bit tight, but should be OK.

Here is a nice video for a first timer. https://www.youtube.com/watch?v=UxLfF2abE_o

Thanks everyone .... Looks like a good job to do after the first run in spring ....

add a little dish soap for initial start up also .. good little tip

add a little dish soap for initial start up also .. good little tip mark youre hoses so you dont swap them around .orb youll be buying a whole assembly when she cracks from heat ,, lol dont over tourqe the bolts either .. good luck in dive in .. srry dint mean to duplicate shucks

I love how PPT Videos show the engines and related parts in pristine condition, with easy access, and the bolts already loosened.

Kind of distorts the reality of it all . . .