<VV> Carburetor Adjustment

[Sethracer at aol.com]

In a message dated 5/23/2009 10:58:08 PM Pacific Daylight Time,  
contactsmu at sbcglobal.net writes:


Which idle speed screw is set first?  Is the carb connected to  the  
cross rod (with the throttle held full open at the cross  rod)?

Stephen U



It doesn't really matter Steve. As long as one carb (or both) is  
disconnected from the cross shaft, you will be able to set the idle screws  
independently.  I think it is easier to disconnect the left side link,  because that 
is where the adjustment is. The proper procedure is to adjust both  speed 
screws based on the Unisyn - or other flow-measuring device. You want the  
same flow through both primary carbs. When you have the flow equal, you will  
have to adjust both idle speed screws the same amount to vary the idle speed. 
 After that - and the mixtures set - only then adjust the left-side link to 
take  the slack out of the linkage - without pulling or pushing either carb 
any  further open. Remember the cross-shaft pulls one side and pushes the 
other. If  you try to adjust the idle speed with the linkage still connected, 
as you  push one throttle shaft open with the screw, it is pushing the 
other side  closed.  
 
Seth  Emerson

C's the Day! - Corvair, Camaro, Corvette



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