Andy,
Did you ever watch one of those chorus lines of skaters that are spinning in
a circle? The girl on the inside is barely spinning but those skating to
latch on have to skate faster and faster to catch the end of the line and it
gets even gaster the larger the line becomes.
That is the operational data that I am working from here. But I forgot to
think that the water pump pulley is not driving the belt but following it.
It is the crankshaft that is driving it with the larger pulley moving the
impeller of thw water pump faster. So I guess you found the fault with my
thought pattern.
Oh well, I guess if the alternator needs to spin faster, I will have to make
its pulley larger.
But it was a good thought while it lasted! :)
Joe
----- Original Message -----
From: <zoboherald@aol.com>
To: <spitlist@cox.net>; <NASS-club@yahoogroups.com>;
<spitfires@autox.team.net>
Sent: Wednesday, November 29, 2006 1:06 PM
Subject: Re: Spitfire Water pump
> -----Original Message-----
> From: spitlist@cox.net
>
> This is a small bearing 1296 engine that is now equipped with a Lucas
> Alternator. I have long suspected that the smaller pulley that was
> designed
> for use with the original generator is spinning the alternator slower
> than it
> wants and therefore not putting out the kind of charge that it normally
> would.
>
> So, while I am in the market for a new pump, I decided to order one
> designed
> for a later car with an alternator (larger pulley).
>
> ==AM==
> Maybe I haven't had enough caffeine yet today, but wouldn't a small
> pulley turn FASTER than a larger one? Meanwhile, I also am not
> understanding how the size of the water pump pulley will affect the
> speed of the alternator, since the water pump pulley acts more as an
> idler pulley.
>
> Off to refresh my tea.... ;-)
>
> --Andy Mace
>
> *Mrs Irrelevant: Oh, is it a jet?
> *Man: Well, no ... It's not so much of a jet, it's more your, er,
> Triumph Herald engine with wings.
> -- Cut-price Airlines Sketch, Monty Python's Flying Circus (22)
>
> Check out the North American Triumph Sports 6 (Vitesse 6) and Triumph
> Herald Database at its new URL: <http://triumph-herald.us>
> ________________________________________________________________________
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