Check the jetting as installed on in your DGV.
Just because it's mounted on an engine, doesn't
mean it is jetted correctly for you car or driving habits.
Presently I believe these settings as a bit tweaked (slightly rich from stock)
but your jets should be something very close to the following for
an MGB engine.
Primary Idle Jet 60
Primary Main Jet 155
Primary Emulsion Tube F60
Primary Air Corrector 170
Secondary Idle Jet 50
Secondary Main Jet 135
Secondary Emulsion Tube F6
Secondary Air Corrector 160
Paul Tegler wizardz@toad.net http://www.teglerizer.com
OBie - '73 BGT - daily driver
http://www.teglerizer.com/mgstuff/ob_description.htm
Punkin' - '78 Spitfire - corner ripping screamer
http://www.teglerizer.com/triumphstuff/spit78.htm
Lil' Greenee - '73 RWA Midget - lady killer
http://www.teglerizer.com/midgetstuff/index.html
-----Original Message-----
From: Jon Lind <dtjon@hotmail.com>
To: mgs@autox.team.net <mgs@autox.team.net>
Date: Monday, March 13, 2000 3:56 PM
Subject: DGV Carb
Howdy. I bought a car and engine seperately (with the Weber DGV conversion
already on it), and before I even got the engine running I installed a
Pertronix ignition. Finally got the thing running and it won't idle or hold
throttle steadily. It barely idles, and when you give it some throttle it
stumbles severely and fluctuates rpm (for instance, with steady throttle it
will swing between 2,000 and 2,500 rpm, and yes, the engine RPM really is
changing to match the tach).
Anyway, I put the points back in and get the same results. When you close
off the butterflies it runs steadily. This would indicate a vacuum leak to
me, but when spraying some starter fluid around the manifold, the carb base
gasket, etc. there's no change in the way the engine runs.
I have the mixture screw to 1 turn out (as per my Haynes Weber manual). Any
ideas?
Thanks in advance.
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