[TR] TR3A Water Pump Pulley failure

[Randall]

> There are four pictures that I posted on photobucket.

This link might work better for some:
http://tinyurl.com/37uv4y6

> Looks like I can either get the pump 
> and pulley as
> a unit or the pulley or separte from TRF.

Unless originality is important, I would opt for the "one piece" setup.
I've seen too many failures at that joint; and the "one piece" replacement I
got from Moss has gone well over 100,000 miles with no drama.  But don't
forget that there is a stud required for the conversion (the original setup
had a bolt that was trapped in the pump by the pulley), and you have to
tighten the nuts in stages.  (With the pump fully in place, there isn't room
between the stud & pulley to install the nut.)

> The water pump still turns 
> freely so the
> failure would seem to be metel fatigue from 50+ years of spinning.

The pulley should not have been flexing, so my guess is that the water pump
shaft does not run true or the pulley was cocked during installation.  In
fact, the shaft looks bent to me in your photo #2 (although that might be an
illusion).

> The
> difficult part is the remaining half of the pulley on the 
> spindle is such
> that a 3 prong puller can't grab anything flat due to the taper of the
> inside of the pulley. There is a woodruff key in there 
> holding it good.

Definitely after a failure like that, I wouldn't even bother with the old
pump!  But if you really want to get it apart, I'd suggest an abrasive
cutoff blade in a Dremel or die grinder, and cut into the keyway.  Or you
might be able to get in behind the mangled pulley with a bearing separator.
http://www.harborfreight.com/bearing-separator-and-puller-set-93980.html

Randall