[alfa] Shankle fuel line restriction/Dellorto parts

["Korolyshyn, Dan Mr. DAC DPW ENGR RESOURCE MGMT BR" <Dan.Korolyshyn@xxxxxxxxxxxxxxxxxxxx>]

Bill,

A very good supplier for Dellortos is Eurocarb Ltd.
You can talk to Matthew Cooper, he's very knowledgeable and 
should be able to answer all of your questions. Their address
and website are below. As for your fuel pressure question, when
my car was converted to carbs by Alfa Romeo years ago in Frankfurt, 
Germany, they simply used the existing Spica fuel pump and just ran
it by/through the carbs without changing the return system and it 
worked without any problems. As far as I know they did not put any
restrictors or regulators in the system, they just let it free flow 
and the carbs took what they needed.  Seems that if the system just
free flows there is no excessive pressure buildup but plenty of flow
which is what carbs need.

Dan K.

Eurocarb Ltd.
256 Kentwood Hill
Tilehurst
Reading, UK
RG31 6DR

Tel  +44 (0)118 943 1180
Fax +44 (0)118 943 1190
sales@domain.elided

www.dellorto.com


------------------------------

Date: Mon, 8 Dec 2003 18:36:56 -0500
From: "Bill Sinclair" <bills@domain.elided>
Subject: [alfa] Shankle fuel line restriction/Dellorto parts

I'm in the process of installing Shankle intake adaptors that I took from a
junkyard spider a few years ago on the 2 liter engine in my Berlina.  I
know,
the Spica is a wonderful system and all but my pump was bad, I don't have
$700
right now and I had this Shankle thing on the shelf.  One thing that I
neglected to get from the junkyard car was the fuel return line restrictor.
When using the original fuel pump, it's necessary to use a "T" fitting in
front of a fuel pressure regulator.  The regulator, of course, steps down
the
pressure from the high pressure Spica fuel pump to a pressure that is usable
to the carbs.  The T fitting provides a return path back to the gas tank.
It
stands to reason that there should be some restriction in the return line so
that some pressure is available at the input of the pressure regulator.  I
plan to drill a small piece of brass rod to put in the fuel return line and
act as a restrictor.  Does anyone have any idea what size hole I should
drill?
Am I misguided in my thinking?  Also, one of the Dellorto carbs that I'm
using
in this application is leaking from the accelerator pump diaphram.  Anyone
know of a U.S. supplier for Dellorto parts or a European supplier with a
friendly web site?  Thanks.

Bill Sinclair
67 Duetto
73 Berlina
Hampton, VA
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