Re: [T3] FI Fuel Pumps

[stans4@ix.netcom.com (Stan Schaefer)]

I was quoted $375 new, $220 rebuilt a couple of years back.  I bought
a used one at a swap meet, spun OK when dry, motor seals leaked like a
sieve when connected to a fuel line, caveat emptor.   I was able to
reuse the pump head on one that the motor was still good on, so it
wasn't $10 totally wasted.

The best way to check them out is to connect three short chunks of
fuel line up to the pump and get a small can of solvent, like
naptha(not gasoline).  A couple of small alligator clip extensions to
a battery charger connected to the terminals will soon tell you what
you have.

Even if the motor runs you may still have a bad pump head.  Most of
mine had the check valve tip break and then all the fuel got pumped
back into the tank, no pressure in the ring.  This is a sealed part
with no replacements available, new pump time if that happens.  If all
the solvent runs out of the middle one and not much out of the outer
one, you've got a chance of having a decent pump.  Not much you can do
if you've got a bad one except trade it in for a rebuilt.  I had one
that the motor got gummed up from sitting, I car}arked the pump
head and took it off, then got the motor freed up.  Put it back
together and had a hell of time getting the pump lined up.  Apparently
.001 of an inch is the difference between pumping a whole bunch and
not pumping at all.  Pumped solvent through it for about 8 hours, got
a ton of crap out of it and it lasted for about 5 years before the
check valve tip broke off.


On Tue, 20 Apr 1999 14:20:57 -0700 (PDT), you wrote:

> If this is the case
>> isn't the FI pump a 
>> expensive part?
>> Peace - Wilson
>
>
>New around $250.... I got a good one used for cheaper
>than that a while back.. .. I just happened to grab a
>couple at a show for a reasonable price (tee hee!)
>.... if you need one I may be able to provide....
>which brings up a good point.... is there any way I
>can test the functionability of these FI fuel
>pumps.... I gues I could disconnect the wire that goes
>into mine and connect it to one of these... to see if
>the motor turns... but that doesn't tell me much....
>how should I go about testing/fixing these????
>
>Robert
>'69 fasty

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