I promised myself that prior to replacing the pump with the Masters
(Autozone) E2019 unit I would do all of the testing that I could to make sure
that all
of this was not related to a wiring problem.
1. First thing I did was to remove the power relay and hook the pump back up
to the white power lead. I turned on the ignition, the pump operated
and--NOT IMMEDIATELY as before, but about 20-30 seconds after the engine fired
over--then died.
2. Then I disconnected the pump from the white power lead and ran a jumper
to the battery. The pump started pumping right away and continued pumping
after I started the engine.
3. Then I disconnected the power lead and ran the jumper between the
switched post at the fuse block and the pump. The pump ran when I turned the
key on
and shut off when the engine fired over.
4. Then I switched the jumper over to the unswitched post at the fuse block
and the pump started to run and continued to run after I started the engine.
THEN THE PUMP DIED and I noticed that it was hot to the touch.
5. I reattached the jumper to the battery and now the pump would not run at
all.
6. I removed the NAPA pump and mounted, plumbed and wired (to the white
power lead) the Masters unit, turned on the ignition and the pump began to
operate. I fired the engine over and the pump continued to operate--I ran the
car
for about 10 minutes and the pump operated fine.
7. I tested the NAPA pump on the bench with a 12 volt converter--It ran
fine, though it was running with an open head (no fuel).
As best I can tell the NAPA/Belkamp Posi-Flo pump has some issues. Don't
forget that I went through two of them--the first one lived a shorter but
similar
unhappy life. If someone is interested in performing further tests on the
pump to see if it works with a line filter, etc. etc. I would be happy to send
it along. Otherwise it is going to be mounted on the wall in my Hall of Shame
Gallery along with the cracked oil pickup tube from my 100.
Best--Michael Oritt
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