Ray,
I used the Edelbrock #8842 water pump on my 302 and did press the hub back
further. It's been 9 years ago and I can't remember just how far I pressed
it back, but it can be done. That pump and other newer ones have a stepped
shaft where the tip of the shaft is the same size as the older ones (.625)
however about .550 inch back the shaft enlarges up to .747 this is to
facilitate a larger bearing inside the pump (a good thing). If you are
carful you can press the hub back just far enough that you get alignment
with the engine pulley. One thing to watch is the water pump pulley
becoming close to one of the bolts on the water pump, the one that's about
at the ten o'clock position (viewed from the front) mine is about .300 of an
inch clearance. Also if you are using the original water pump pulley that
has the one inch center hole you might consider using the various ways
people have discussed of making an adapter that will take up the space
between the one inch hole in the pulley and the .625 shaft.
What I did was to machine .050 off the face of the hub down to and leaving a
one inch diameter protrusion that the pulley will index on, the pulley is
approx. .100 thick (if I remember) this way you are assured that when you
tighten it all up the pulley isn't high centering. It would be very easy to
just use the bolts to do the centering, but that wouldn't necessarily
guarantee the pulley would run true.
Measure, measure, measure and machine once. ;)
Jerry Christopherson
9473187
-----Original Message-----
From: tigers-bounces@autox.team.net [mailto:tigers-bounces@autox.team.net]
On Behalf Of spook01@comcast.net
Sent: Tuesday, December 01, 2009 10:34 AM
To: tigers
Subject: [Tigers] water pumps and hubs
hello all,B
a quick question regarding water pumps on the 302 option.
can you press a hub further down on the hd aftermarket pumps to use it on
the
tiger with a 302?B or do i need to press off the hub on my 260 type pump
and
put it on the new pump?
seems like the mustangs used a body to hub measurement of 5.7".....but the
tigger is different.
i used the old 260 pump for years, but it really is out of it's depth with a
larger engine what with the open impellor and all.
thanks,
rayB
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