> If anyone has a good experience doing this, I'd love to hear back
> from you with some advice, tips, etc.
Several alternatives here. One is to have the original generator pulley bored
out to the size of the alternator shaft. That's what I've done for both of my
conversions, the only downside is that the generator pulley is a bit large for
the application, meaning the alternator doesn't charge much at idle either, and
it's also more difficult to change the belt if you continue using the stock size
belt. NAPA sells a belt that will work with the original pulleys but is just a
bit longer (and more flexible) ... I still have to take the alternator loose
from it's mount to change the belt.
Another is to find a pulley that fits the alternator shaft and takes the wide
belt. Herman told me where he bought the one on Heidi's TR3A (?), but I've
managed to misplace the information. ISTR someone was selling them on eBay for
awhile too, maybe they will see this thread and offer them again.
> If I have to replace the pulley, then I am probably going to have to replace
> the water pump for the same reason.
There are sets available to do this, but they are kind of expensive. I started
to collect the components to do it another way : front crank pulley from a MGB
(I think it was), and water pump pulley from a TR250. Needs a spacer for the
crank pulley, though, or else a different seal. Never finished dealing with
that aspect. Of course, either of these methods means you lose the fan
extension and mechanical fan ... but gain room for an electric fan behind the
radiator which is my preferred arrangement anyway.
Randall
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