Larry:
The belt location is the same no matter which pump is used.
The early pumps have a long snout, and use a very deep stamped steel pulley.
The later pumps are about 1" shorter and use either a cast iron, or two
piece stamped steel pulley which is almost flat. Jasmine would have
originally had a stamped steel pulley with two belt grooves. The pulley
depth would have been about 2"
Hope this helps.
Kelvin.
> -----Original Message-----
> From: Larry Colen [mailto:lrcar@red4est.com]
> Sent: Saturday, September 28, 2002 5:45 PM
> To: mgs@autox.team.net
> Subject: Short versus long water pumps
>
>
> What is the difference in length between the MGB short (early) and
> long (18V) water pumps?
>
> I just purchased a short H2O pump for my supercharger installation,
> but when I measured against the one I have in there, I only see about
> 0.1" difference, which could easily be due to my mis measurement.
>
> I wonder if for some reason, I already have the short pump. Does the
> alternator that I'm running have anything to do with which H2O pump
> I'd need to run. At some point I swapped to a different than stock
> alternator. I don't remember if I went for more Amps, or internal
> regulator, or all of the above. I seem to remember needing to change
> the pulley to make it work.
>
> Sometimes it's a pain in the butt being my own DPO.
>
> lrc
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