> In my big (and growing) box of spares I have found a SU fuel pump of
> totally unknown condition. Is there a way to test it to determine if
> it works or is worth rebuilding?
Yes.
> I would assume that if the motor
> runs that would be step one and step two to look at the points and
> replace if pitted.
As Frank said, step one is to determine whether it's positive or negative
ground. However, if you're going to replace points, you may as well do the
whole thing and put in a rebuild kit:
1) You'll have it all apart in order to replace the points.
2) The darned things are so simple that I can't imagine how one could go
bad in a way that a full rebuild kit wouldn't fix. (Doesn't mean it
couldn't happen, but it seems unlikely.) The things that tend to stop them
are bad points and/or a stiff diaphragm, both get replaced in a rebuild
kit.
> Can I pump fuel (or something safer) and put a
> pressure gauge on the output and measure it's output pressure and
> measure it's volume in a catch can?
Sure. I use kerosene. It won't do any damage, will tend to clean out the
insides a bit, and isn't as dangerous as gasoline. (Besides, I use the
tank on my kerosene garage heater as a "catch bin" saving me the hassle of
refilling it.)
As always, YMMV.
Chris Kotting
ckotting@iwaynet.net
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