Clams Canino wrote:

Why?

Because IF the impeller is dryrotted and breaks up, the shrapnel may well
wind up going up the pipe and into the cooling system - where is is bound
(by Murpheys Law) to find the most critical water passage and block it.

Changing the impeller is VERY trivial compared to all the alternatives.

Your sons motor is lucky is all.

Luck, or fresh water?

I've been running ancient outboards for 20 years in fresh water, and
storing them outside in Canadian winters, and only ever replaced one
impeller. I'm not sure what caused it to fail, because it looked great
except for one vane broken off clean near the hub - and still intact
inside the housing.

Sunny

(I need someone to distract Murphy for me or all my impellers will fail
next weekend :-)

-W


"Sunny" wrote in message news:kz%dd.31253


Why?

It's not a trivial job, and IME there's no evidence impellers are harmed
by dry storage.

My son's motor is 40 years old, and still has the original impeller -
despite sitting idle for 15+ years before being returned to service
three years ago.


Paul