Re: [T3] more Fuel pump rebuild Q's

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

I've done some swapping a few times, so I can answer some of the
questions.  First, the parts position on the pump head is critical. A
shift of a few thousandths can make the difference between one that
pumps and one that doesn't.  You need to mark the pump plate and body
in  couple of spots and make sure you mark which side goes out.  I
spent one Sat. afternoon the first time flipping parts and sliding the
plate around to find the one good spot where it pumped correctly.
There's really no way to replace seals on the pump motor, it's a
sealed unit.  So if it's leaking, write it off and get another.  I had
one that had old gas that had set up in it, it wouldn't run.  I took
the pump head off and gave theCáè¼ spin and it started running.  I
reassembled it and hooked it up to about a pint of naptha and ran it
for about 8 hours.  After that time, I had some nice dark-red naptha
and a working pump.  That pump lasted about 4 years until the relief
valve seal started leaking.  This is a crimped cap on the pump head on
the part that sticks out to one side.  I tried fixing that, but no
luck.  I've also had the tips get hard and break off on the relief
valve on some pumps, when that happens, you get gas directly back into
the tank through the hole and no pressure out of the pump.  There's no
parts available to fix the valve, the best you can do is sub a head
off a dud pump and hope it doesn't have the same problem.  When those
rubber tips get hard, the pressure won't stay up in the ring and you
get hard starts after sitting.  Why do you think yours is on it's last
legs? Pump problems are very rare, far more likely to have a filter
blockage or leaky hose.

On Fri, 7 May 1999 00:13:46 EDT, you wrote:

> Chris Swafford - Please tell us in more detail about rebuilding your FI fuel 
>pump. 
>like..is all that needs to be done - take it apart,clean it, put it back 
>together? How did you make one good pump out of three? Any tips that you can 
>give? Mine is on it's last legs so I am VERY intersted! 
>Thanks - T3's rule! - Wilson
>
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