My thoughts:
Why not rebuild the carburetor? It's a cheaper solution, takes only a few
hours, and you'll learn a lot about carburetion. It's also kinda fun, like
building a model car or airplane.
I'd look at what the actual HC and CO numbers are and compare them to the
allowable limits for your state. That information can help you determine what
the problem might be. Most states give you tips on what kinds of problems
affect the numbers and by how much. The problem could be more than just the
carburetor. Don't overlook the basics like ignition timing, vacuum lines,
points, distributor cap/rotor, air filter and coolant temperature. All these
things affect emissions output.
Stephen I. Early
Technology Sector
MBNA America
800.441.7048 x74788
stephen.early@mbna.com
-----Original Message-----
From: owner-bricklin@autox.team.net
[mailto:owner-bricklin@autox.team.net]On Behalf Of Maycinc@cs.com
Sent: Monday, May 16, 2005 9:50 AM
To: bricklin@autox.team.net
Subject: '75 Carburetor
Well ol' 1343 failed the emissions test with very high HC and CO. Took it to a
carb specialist and they said I need a new carb. It's running too rich but
they couldn't lean it out enough without the engine dying. The carb is
apparently dumping fuel at partial throttle (they test at 15 & 25 mph). Was
told this is a common problem with Holley?
I know it's been discussed before but what carb should I put on? It's got a
Holley 500 cfm right now (don't know which model). Should I stay with a Holley
or go back to Ford?
The other issue is that the engine is from a '73 Montego so it doesn't have the
smog pump but it has always passed emissions before. Because of that, should I
go with a '73 or '75 carb?
Marvin
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