[Mgs] fuel pump problems, need help

mgbob at juno.com mgbob at juno.com
Mon Jul 25 05:46:33 MDT 2016

  There is no need to prime the SU pump.   Switch it on. If it thumps, it pumps.    However, it does not pull very hard (most pumps push better than pull), and any air leaks between pump and fuel tank will allow the pump to pull only air.Bob
---------- Original Message ----------
From: Clayton Kirkwood via Mgs <mgs at autox.team.net>
To: "'Eric J Russell'" <ejrussell at mebtel.net>, <mgs at autox.team.net>
Subject: Re: [Mgs] fuel pump problems, need help
Date: Thu, 21 Jul 2016 10:13:28 -0700

How does one go about priming the pump?


> -----Original Message-----
> From: Eric J Russell [mailto:ejrussell at mebtel.net]
> Sent: Tuesday, July 19, 2016 1:27 PM
> To: mgs at autox.team.net
> Cc: crk at godblessthe.us
> Subject: Re: [Mgs] fuel pump problems, need help
> > 62 MGA, fuel won't pump. I disassembled my pump and checked the
> > diaphragm, the rubber looked really good, I replaced the cork seal for
> > what looks like the overflow tank, this is not the original kind of
> > pump with the unscrew-able filter. >
> > I would think as long as the piston is going up and down I should at
> > least get a stronger vacuum. What do I do? What is wrong?
> I am not sure what type of fuel pump you are describing. Can you post a
link to
> a photo?
> SU pumps don't suck very well. The fuel pump in the MGA is mounted fairly
> so it doesn't have to draw fuel up. Once primed all it needs to do is push
fuel up
> to the carbs.
> Eric Russell
> Mebane, NC


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