I wouldn't rush to install an electric fuel pump. Too often "fixes"
like this mask the real problem.
An NOS pump could very likey have failed since it is quite old. Even if
the diaphragm is okay, the disc valves (suction/discharge) may have been
affected by modern fuels. The discs warp and then won't seal against
their seats. A fuel pressure test and/or delivery rate test will tell
you if the pump is working correctly. Unfortunately I don't know who
offers a rebuild kit for you pump. Any recently manufactured parts,
however, should be made of materials that stand up to modern fuels.
Also, you may want to check carburetor float level. If the float is set
too high you may have starvation problems during climbs.
Pete in PA
No fueling problems after dumping the Holley 4160 for a Carter AVS
Date: Tue, 20 Jul 2004 23:59:13 +0200
From: Philippe Courant <accf-club@xxxxxxxxxxxxxxxx>
Subject: IML: fuel pump
Since two days i have again a fuel pump problem. First i must say that i
use unleaded fuel (which is a little agressive in France ..) since 3
years Two years ago i change my pump because the "old" couldn't supply
enough
fuel when i floored the car. I bought a NOS pump on ebay, installed it
and it works well....until last week-end ! On highway when the road
climb i was out of fuel if i wanted to keep a 70 mph speed. The only
solution was to release a little the gas pedal and not try to climb at
more than 55 mph. On flat road no problem to run at 70 or 75 mph. Note
that i took a look at the fuel filter, no problem ..
So here are my questions:
- i'll install an electric "Holley red" fuel pump i bought for spare
last year. Is there some problem with unleaded gas with this type of
pump ?
- Where could i find a fuel pump kit for unleaded gas ? I've now two
pumps to repair ...
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