Alan -
I'm on the Digest, so this answer may be a little late. If you haven't
taken it apart yet, it's likely that the problem is that the diaphragm
has gotten stiff. After a while, accumulated varnish and other fuel
deposits will make the diaphragm get too stiff to flex, and the magnet
won't pull it hard enough to overcome the stiffness.
Your best option is to just replace the diaphragm, though you >>might<<
be able to get away with soaking it in some denatured alcohol to losen
it up enough to flex. However, there's no telling whether the poor
thing will subsequently split on you, so replacing it is your best bet,
particularly since you have to tear into it anyway
Chris Kotting
ckotting@iwaynet.net
> Date: Sun, 9 Apr 2000 09:32:38 -0500
> From: Alan Pfau <apfau@ismi.net>
> Subject: Fuel Pump - NOT
>
> Hi All,
> I am getting my 73 GT out of storage after about 8 years of
> idleness. To make a long story short, I brought the car home and have
> started going through the process of getting it ready to run/drive. On
> a good note, it appears to have survived very well (no mice damage!)
> and every thing looks good with the exception of a non-operable fuel
> pump. I've tried tapping on it and checking power leads but couldn't
> get it to start. Now I have it on the bench. The points look good, the
> armature/pivot throws over properly and is loose, it seems to not be
> able to draw a magnet. When I put power to it nothing, no humming,
> pumping etc. I've fooled around with the T-series types but not the
> newer ones. It also has a small black condensor (it is an england
> market car) under the bakelite cover. Is there a way of testing it?
> Any ideas on where to start before I just tear into it
> willy-nilly? It's an AUF-300 type.
>
> TIA,
> Alan Pfau
> apfau@ismi.net
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