As I understand it, there are two basic versions of the double ended pump.
One version is a high capacity/pressure type where both ends are intended to
operate simultaneously and a lower capacity/pressure type where the two ends
are intended to operate separately/independently.
In addition they are available in points style, dual polarity, positive &
negative polarity.
See below.
>From the Burlen website http://www.burlen.co.uk/
"The 400 series is the double ended version of the above. These are now
referred to as the 1400 series, part numbers are AZX 1405, AZX 1410, AZX 1408
and AZX 1416 although most now supersede to AZX 1405."
"The 500 series is a double ended pump with each end working independently,
mainly used as a reserve feature. This is now referred to as the 1500 series,
part numbers are AZX 1500 and AZX 1501."
Gary Hodson
-----Original Message-----
From: David Nock <healeydoc at sbcglobal.net>
To: Alan Seigrist <healey.nut at gmail.com>
Cc: healeys <healeys at autox.team.net>
Sent: Sat, Apr 16, 2011 6:43 pm
Subject: Re: [Healeys] Dual fuel pumps
The easiest answer to this problem is to install a SU dual pump. Then run
iring up to a switch on the dash to go between the pumps. Th best switch to
se is a Bugeye turn signal switch.
avid Nock
ritish Car Specialists
tockton Ca
ww.britishcarspecialists.com
On Apr 16, 2011, at 3:27 PM, Alan Seigrist wrote:
> Keith -
On my Jag Mk IX there are two SU pumps which are plumbed parallel.
The SU pumps' check valves prevent back flow into the separate
opposing gas tank, so there's no need for an isolation valve.
The set up works well and does provide a measure of security against a
defective fuel pump. This was a factory standard set up on all Jag
saloons of the era.
Cheers,
Alan
On 4/16/11, keith taylor <ktee20 at gmail.com> wrote:
> I propose fitting a secondary pump to a BN2 (neg earth) using an SU +
> Fedtro with a changeover switch
> The simple option is to run them in series . Is there any reason not to do
> this.ie loss of pressure etc
>
> Keith Taylor
> WAMBERAL OZ
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