RE: SER1 FW: Petrol pump pressure

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Tom,

The output pressure from the pump is fixed. Provided the pump is the
right type (long suck/short blow and not short suck/long blow) the
failure is in the carb needle valve. This either has dirt in it after
the fiddling or is faulty - needle valve faulty, needle valve too high
in the float chamber, float leaking, float jamming etc. 

Nick. 

-----Original Message-----
From: series1-host@xxxxxxxxx.xxx [mailto:series1-host@xxxxxxxxx.xxx] On
Behalf Of Jeremy Brooks
Sent: 07 July 2004 16:51
To: series1@xxxxxxxxx.xxx
Subject: SER1 FW: Petrol pump pressure




From: Tom Bjørnland <tom@xxxxxxxxx.xxx>
To: Jeremy Brooks <seriesonegarage@xxxxxxx.xxx>
Subject: Petrol pump pressure
Date: Wed, 7 Jul 2004 13:58:25 +0200

Hi all,

I've just installed a new (electrical) fuel pump in my S1 (1952 - 2L),
but 
the engine seems to be getting too much fuel.
The plugs are all sooted and (when a couple of screw were a bit loose) 
petrol bubbled out of the carb chamber.
So - I wonder if this new pump might be delivering too much pressure.
Has 
anybody got any idea of how high the correct pressure should be ?

Tom Bjornland
Moss, Norway
http://www.bjornland.com

- Normal people worry me -



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