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Re: [Healeys] Fuel pumps (AGAIN!)

To: healeys@autox.team.net
Subject: Re: [Healeys] Fuel pumps (AGAIN!)
From: Kees Oudesluijs <coudesluijs@chello.nl>
Date: Fri, 30 Nov 2018 00:21:31 +0100
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Both the later A-H 3000 and Stag use the AUF301, now replaced by AZX1308 
which delivers 3,8psi. very often the AZX1307 is fitted which will 
deliver 2,7psi.

Kees Oudesluijs



Op 29-11-2018 om 19:28 schreef Frank Magnusson:
>
> Hi Bob,
>
> Interesting discussion on pumps.
>
> I think the mileage you are driving has to be much higher than the 
> typical Healey owner and could exacerbate the problem.
>
> I?m just going through all of this on my Triumph Stag; replacing pump, 
> making sure fuel and vent lines are clear, etc.  The old pump died but 
> it was a Facet pump and was never meant for that car; going back to stock.
>
> On your Healey, I think I would look at what other things would stress 
> the pump if its something other than the pump itself.   Some good 
> suggestions the last few days.
>
> I think I would:
>
>  1. disconnect the fuel lines and blow them out with compressed air to
>     make sure there is no obstruction as Michael suggested.
>  2. Is your pump in the stock location?  If not, that may be part of
>     the problem.  I?ve read recently on other brand pumps (Facet)
>     losing their prime if higher than the fuel tank.  Certainly that
>     would stress the pump.
>  3. I?d check the voltage regulator to make sure that you aren?t
>     frying your points if its set too high as Tom suggested.
>  4. Not sure how your pump is vented as Kees referred to.  Mine is not
>     vented to the trunk, but just using the std vent, but mine doesn?t
>     get driven much anymore and only in dry conditions.  But years
>     ago, I did drive it back from the Tri-Healey event in OK in
>     pouring rain the entire trip for about 5 hours, and it didn?t skip
>     a beat.
>  5. I don?t think the Healey fuel system is really vented; certainly
>     there is no egr system.  But I think maybe the fuel cap is vented
>     sort of.  Not sure if that is stock on yours or partially plugged.
>      If it was completely plugged, I think you?d have performance
>     problems, but any restriction there is going to stress the pump. 
>     Again, not sure if it is vented the way it?s designed, but I think so.
>  6. Lastly, are the pumps you?re using the correct specs for the model
>     Healey you have?  Sounds obvious, but some of the suppliers these
>     days sell parts that aren?t really 100% correct; they are close
>     and they work most of the time in most applications, but if they
>     can stock 1 or 2 different parts instead of 10, they will.  If
>     that?s questionable, I?d go to Healey Surgeons or David Nock.
>
> Best of luck,
>
> Frank
>
> ?65 BJ8
>
>
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    <p>Both the later A-H 3000 and Stag use the AUF301, now replaced by
      AZX1308 which delivers 3,8psi. very often the AZX1307 is fitted
      which will deliver 2,7psi.</p>
    <p>Kees Oudesluijs</p>
    <p><br>
    </p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">Op 29-11-2018 om 19:28 schreef Frank
      Magnusson:<br>
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        <p class="MsoNormal">Hi Bob,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Interesting discussion on pumps.  <o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I think the mileage you are driving has to
          be much higher than the typical Healey owner and could
          exacerbate the problem.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I?m just going through all of this on my
          Triumph Stag; replacing pump, making sure fuel and vent lines
          are clear, etc.  The old pump died but it was a Facet pump and
          was never meant for that car; going back to stock.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">On your Healey, I think I would look at
          what other things would stress the pump if its something other
          than the pump itself.   Some good suggestions the last few
          days.<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">I think I would:<o:p></o:p></p>
        <ol style="margin-top:0in" start="1" type="a">
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">disconnect
            the fuel lines and blow them out with compressed air to make
            sure there is no obstruction as Michael suggested.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">Is your pump
            in the stock location?  If not, that may be part of the
            problem.  I?ve read recently on other brand pumps (Facet)
            losing their prime if higher than the fuel tank.  Certainly
            that would stress the pump.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">I?d check
            the voltage regulator to make sure that you aren?t frying
            your points if its set too high as Tom suggested.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">Not sure how
            your pump is vented as Kees referred to.  Mine is not vented
            to the trunk, but just using the std vent, but mine doesn?t
            get driven much anymore and only in dry conditions.  But
            years ago, I did drive it back from the Tri-Healey event in
            OK in pouring rain the entire trip for about 5 hours, and it
            didn?t skip a beat.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">I don?t
            think the Healey fuel system is really vented; certainly
            there is no egr system.  But I think maybe the fuel cap is
            vented sort of.  Not sure if that is stock on yours or
            partially plugged.  If it was completely plugged, I think
            you?d have performance problems, but any restriction there
            is going to stress the pump.  Again, not sure if it is
            vented the way it?s designed, but I think so.<o:p></o:p></li>
          <li class="MsoListParagraph"
            style="margin-left:0in;mso-list:l0 level1 lfo1">Lastly, are
            the pumps you?re using the correct specs for the model
            Healey you have?  Sounds obvious, but some of the suppliers
            these days sell parts that aren?t really 100% correct; they
            are close and they work most of the time in most
            applications, but if they can stock 1 or 2 different parts
            instead of 10, they will.  If that?s questionable, I?d go to
            Healey Surgeons or David Nock.<o:p></o:p></li>
        </ol>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Best of luck,<o:p></o:p></p>
        <p class="MsoNormal"><o:p> </o:p></p>
        <p class="MsoNormal">Frank<o:p></o:p></p>
        <p class="MsoNormal">?65 BJ8<o:p></o:p></p>
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