[Healeys] Fuel pumps (AGAIN!)

[Kees Oudesluijs]

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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