[Healeys] SU pump test rig

[Greg Lemon]

I used Marvel Mystery oil for my test fluid, couple lengts of suitable 
rubber hose, plastic cup for fluid to flow in and out of, model train 
transformer (supplies 12v DC, great for auto electrical testing of items 
that don't draw a lot of amps) for the power source, you can get old train 
set transformer for next to nothing at train shows, ebay, garage sales, etc.

Marvel Mystery oil doesn't smell half bad.

Greg Lemon



----- Original Message ----- 
From: "Norman Nock" <sjnnock at sbcglobal.net>
To: <healeys at autox.team.net>
Sent: Sunday, May 31, 2009 3:36 PM
Subject: [Healeys] SU pump test rig


> Rich C & John H ... I used an S.U  test rig when I was rebuilding the S.U 
> fuel
> pumps back in the 50's .. if you have my Tech Talk book check page 113 ,my
> article was run in Chatter about 20 years ago ,my only notes say later 
> than
> April but no year..  it shows the test rig and how it works .. if any body 
> can
> tell me the year and month it was run I will note it in my Tech Talk book 
> ...
> this test rig was available then from Nuffield Export Ltd           Norman
> Nock
>
> --- On Sun, 5/31/09, John Harper <ah at jharper.demon.co.uk> wrote:
>
> From: John Harper <ah at jharper.demon.co.uk>
> Subject: Re: [Healeys] SU Pumps Bad Rap (was No Power)
> To: "Rich C" <richchrysler at quickclic.net>
> Cc: healeys at autox.team.net, "Steve" <stevesylvia2 at comcast.net>
> Date: Sunday, May 31, 2009, 11:22 AM
>
> Rich
>
> You might be interested to hear that Burlen have provided revised settings 
> in
> line with what you have found. As you say the original setting did not 
> allow
> reliable throw over.
>
> I produced a test rig some time ago; similar to those on the workshop 
> manual
> where I pumped paraffin of kerosene as you might call it. I had a pump 
> that
> let me down after a long run and then got better after a rest. I traced 
> this
> using the rig to the body of the pump heating up, after many hours 
> running,
> where the throw over mechanism just stopped working. I then revised my set 
> up
> procedure as you have but it was some years later that a colleague brought 
> the
> Burlen note to my attention.
>
> Regards
>
>>
>> What I have been observing is that on new pumps, they are often not set
> correctly from the factory and often seem to need that extra bit of length 
> for
> proper throw over. Once this was done, these new pumps worked fine.
>>
>> Rich
>>
> -- John Harper
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