Hi Chris
Lean mixture is a good diagnosis.
However check the following points before changing jets etc.
Is the secondary closing completely?
Are there any manifold air leaks??.
If the carb was working previously I would expect it to run reasonably OK in
it's new home.
Check the under carb gasket is sealed properly and that the carb base is not
distorted by previous mechanics over tightening.
Check that the gasket is not fouling the throttle butterfly.
The secondary butterfly should open and close freely, you do need to hold
the primary open to allow you to manually open the secondary.
I have always found the 1600 to rev more willingly than the 1725 block and
the three bearing configeration not a major disadvantage.
The progressive Weber will give a much more driveable car, with a pair of
DCOE or similar you sacrifice low end torque until revs get up enough to
make adequate air flow through them. Not a problem if you use a few more
revs.
What's this AC stuff, so whats wrong with the wind in your hair :-)).
Seriously on the AC subject if you fit an auto trans kick down switch under
the accelerator and wire it to deactivate the AC drive clutch on full
throttle you can have your cake (AC) and eat it as well (no waste
horsepower) :-)).
Keith
55 Californian
----- Original Message -----
From: <ellis838@concentric.net>
To: <alpines@autox.team.net>
Sent: Tuesday, February 04, 2003 8:57 AM
Subject: Re: New Engine & Overdrive
> Rough running at low rpm could be a lot of things valve adjustment,
> vacuum leak and such but if you have all these things right and feel
> good about the condition of the engine my guess is it is to lean. Try
>.
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