<VV> Carb update

[corvairduval at cox.net]

If the float seals the needle fine while apart and upside down, check these
two:

1. Float level, which you have with the drill bit.

2. Does the float have gas in it? Does it weigh more than nothing? Does it
get wet after drying it off?

Float drop serves two purposes, 

1. It makes sure the needle opens far enough to let fuel flow freely.

2. It keeps the float off the bottom of the bowl, where it could rub a hole
in the float.

As long a 1 3/4 is still off the bowl floor, it is fine. Having these two
different drop levels should be fine.

Frank DuVal

Original Message:
-----------------
From: Stephen Upham contactsmu at sbcglobal.net
Date: Tue, 22 Jul 2008 09:28:31 -0500
To: virtualvairs at corvair.org
Subject: <VV> Carb update


Need help.
I installed a pressure regulator and set it at 3 1/2 lbs.  The  
passenger side carb is now apparently ok on accessory (haven't tried  
to start her yet).  The driver's side is pouring gas out of the  
venturi (needle not seating) and also around the horn gasket (I  
thought I cleaned the surface pretty well...I guess not).  I'll took  
the drivers side off AGAIN to see what I could find.  The surface for  
the horn gasket was near perfect.  I went ahead and cleaned it again  
just because I have it apart and it now should be perfect!  Before  
adjusting the float again, I decided to try the "blow" test.  I  
turned it upside down and blew on the fuel inlet.  It sealed just  
like it is supposed to.  I gently lifted the floats and could hear  
the air rushing.  I let the floats drop and it sealed!  I went ahead  
and rechecked the clearance from the top of the air horn using a 1/8"  
drill bit as suggested by a well known carb expert in our club.  I  
double checked using a ruler and straight edge on top of the floats  
and got 1 3/16 (at least 1/32" from specs, and maybe right on...old  
eyes...ggg).  One thing, the instructions in the kit say to set the  
drop on the floats at 1 3/4" and the manual says 1 1/2" inch.  Who is  
right?  BTW, both are set at 1 3/4".  If I adjust the drivers to 1  
1/2" now that I have it opened, will I have to do the same to the  
passenger's side, could I have one at 1 1/2" and the other at 1 3/4",  
or should I just leave both at 1 3/4"?


Trying to fix things before the kids and wife wake up.

BTW, that is why I'm having to work on the car until 3:00 in the  
morning.   I can't really start until they sleep.

Stephen
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