[Roadsters] Carb Problems

[Gary and Cindy Ault]

You should not have to raise the needles on the carbs.  If everything else is
working correctly, you should set the position of the needles so the shoulders
are even with the bottoms of the pistons.  A small straightedge will allow you
to check.
 
Z-Therapy does a great job on SUs.  It's $650 for a complete
rebuild, or $250 for just the throttle bodies.  If you know your needles and
nozzles are not worn, you could get by with the throttle bodies.  But, there
are so many little things which can go wrong with SUs.....
 I was helping a
guy in Indianapolis with his '68 2000 with worn throttle shafts.  He bought a
remanufactured set from Z-Therapy.  I put them on the car, fired it up, and it
ran fine right out of the box.  Idle was a little fast for my taste, but that
was easily rectified.  The car still has some problems, but carbs are not
oneof them.

Gary Ault


----- Original Message ----
From: Jim Gammon
<gtpjimgammon at yahoo.com>
To: Datsun roadster <datsun-roadsters at autox.team.net>
Sent: Monday, May 19, 2008 7:06:04 PM
Subject: [Roadsters] Carb Problems

 
Well, no answer from Apple Hyd on the carb problems.

  I think I know a way
to make the carbs work, just raise the needles.

  (they measure 0.100" at the
root of the needle)

  Keith, is this nuts? I'm thinking just 1/16", .032 or
so.

  Jim
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