"Capt. JG" wrote in message
easolutions...
I'm going to be hauling soon, and even though I have realitively easy
access to the raw water pump/impeller, I'm thinking of replacing the cover
with a Speedseal. It seems quite simple to do it, and then I'd be able to
deal with a problem without fumbling for a tool. The impeller is due to
get changed anyway, so while I'm there... for reference,
http://www.speedseal.com/speedseal.html.

Has someone used this product? What do you think?


I have one on a Perkins 4-107 and I think it's the greatest thing since
sliced bread.
An o-ring seals the plate against the pump body so it does not take a great
deal
of force to tighten it sufficiently. The nuts do not seem to have a
propensity for
loosening as long as you don't use a lubricant on the threads. I use a
little bit of
anti-seizing compound on the threads for easy disassembly.

To those who seem to be having problems getting the impeller out, I have
found
that a medium-sized pair of water-pump pliers is all that it takes for mine.
Grab it
across the diameter of the impeller between opposite pairs of vanes and pull
it slowly out.

When I install a new impeller, I clean the shaft with mineral spirits and
take the precaution
of wiping on a bit of anti-seizing compound in the bore before I install the
new one,
and I grease the impeller blades lightly with a bit of white teflon grease.

Start the impeller into the case a little "ahead of the rotation"
and twist the impeller in the direction of rotation to predispose the vanes
to bend
in the correct direction and the impeller drops into place like it knows
where it's going.
Or just wrap thumb and index finger around the impeller and fold the vanes
down
and insert it directly.

Tom Dacon