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Subject: TWL: Re: Changing Raw Water Impellers
From: Andy Clark (slowboat@XXX.XXX)
Date: Tue Apr 03 2001 - 23:08:08 EDT
Garrett Lambert wrote:
> The list of annual maintenance "shoulds" includes changing the rubber
> impellers in the Jabsco pump(s)- one per engine.
> I did one of mine yesterday.
>
> Once ready to go, the instructions tell you to
> compress the impeller in your hand and insert it.
>
> Sure. Maybe Arnold Schwarzenegger with dry hands in perfect workshop
> conditions.......snip
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Garrett, one suggestion- to prevent the metal insert in the impeller
from seizing on the pump shaft due to corrosion, and to make it MUCH easier
to remove the next time, try coating the shaft with anti-seize compound
before installing the impeller. This applies whether a splined, pinned or
keyed configuration. We masochists who race aluminum-engined cars use the
stuff by the bucketful, and it works. Steel bolts/studs in aluminum blocks
will rapidly corrode into an irremovable knot without it.
Andy Clark
ANTARES
CHB 34
Homeport, Everett Washington
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