"IanM" wrote in message
...
Capt. JG wrote:
"Geoff Schultz" wrote in message
.. .
Dave wrote in
:
On Mon, 22 Dec 2008 14:02:42 -0800, "Capt. JG"
said:
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?
Looks to me like a solution in search of a problem. How many times
have you had to change an impeller under circumstances where you
couldn't do it hove to or anchored?
Clearly you haven't tried to help get a boat off of the beach.
-- Geoff
www.GeoffSchultz.org
My main concern is that if I have to do it quickly, I would be hard
pressed to remove the cover easily...
I've considered getting one for my Yanmar 1GM10 even though its only a
three bolt cover. I like the idea of no longer having to keep supplies of
a thin paper OEM water pump gasket, that no matter how careful you are, if
compressed well enough to seal, tears when you remove the cover 3 times
out of 4, and if you *don't* rip it, weeps if re-used unless you get
*ugly* with the gasket dressing.
However the no tools argument is IMHO spurious for most of us as our
minimal toolbox of the OEM's engine tools + a few carefully chosen extras
is stowed somewhere easily accessible (and if we are half way competent a
good kit of tools and spares stowed elsewhere) and one usually needs
tools to remove the impeller from the chamber. Once you've removed it you
are expecting to need the new impeller as well.
I'd also want a spare O ring handy. I hope its a standard size not a
'special' or most of the attraction goes away.
OTOH if your is a six bolt or worse coverplate, or you are working blind
reaching round the engine, I can see the attraction of *NOT* needing tools
unless you've over tightened the bolts. If they are soft brass slotted
screws, you'll also be glad to deep six them.
I'm not so sure that it would work for me with the knurled screws as one
is behind the pulley on the crankshaft and a 7mm ring spanner is really
the only tool that works. I just wouldn't be able to get a grip on that
one to snug it up, let alone a screwdriver onto it to loosen it, but I see
no reason I couldn't have just the plate with a set of hex headed bolts,
and get an extra 7mm spanner to keep with the spare impeller, cover bolts
and O ring. Might as well put the old cover, cleaned up and with a good
gasket stuck to it with a light dressing of Hylomar, and its bolts in that
pump spares pack as well. You *know* that if you are rushed there's a
greater chance you'll drop the whole dammed thing down the bilge.
I can see other benefits as one can check the impeller more often,
catching failures before they happen and maybe remove it when laid up so
it doesn't take a set so letting you get more life out of it without
worrying without using so many gaskets your local manufactures agent
starts greeting you by name and asking after your family. :-) J.G, If you
are teaching, I would think it would see a lot of use if you encourage
your students to learn basic engine maintenance. Do show them the old
cover and screws though, we wouldn't want them to think it came as
standard!
Its on my 'nice to find in my Christmas stocking' list (hint hint, crew)
but I've got a lot of other things I'd treat my engine to first. A new
starter motor would be nice. The water pump chamber has excessive wear so
a new pump is in the offing. A new HP fuel line as the old one is over 20
years old and I'd then have the old one for a spare. New single lever
control and a new throttle cable. Finally the biggie, rebuild the gearbox
due to excessive wear and runout on the shifter groove of the shuttling
double cone in the clutch assembly - Its significantly out of spec even
though it still shifts easily and stays in gear reliably.
I know what you mean about the right tools. My concern would be not being
able to put my hands on them quickly enough, have them scattered around if I
have to use them while in a sea way, or having to climb over other people or
things to get or use them... well, none of this is that difficult to figure
out.
My RWP has a number of screws holding the impeller cover... it's fairly
accessible, however.
http://picasaweb.google.com/SailNOW....31246863609314
http://picasaweb.google.com/SailNOW....31276928380402
--
"j" ganz @@
www.sailnow.com