<VV> Variant 140 secondary

Stan stan at fnal.gov
Fri Sep 11 13:25:47 EDT 2009


Hi,
    I am new to the list, so please be gentle to start.

    Here is the project I am doing. Rebuilding 140 secondaries. They are 
in 65 convert, power glide. The motor may not be a 65. I have a 65 
technical manual and Clarks books, so I think I have the correct info to 
do the job.

    Here is what I have done so far. Bought carb kits from Clarks. 
Removed and cleaned it all. Soaked them and sprayed them out. So far so 
good. Every thing seems okay so far. I am doing one at a time so I have 
an example of a assembled carb in front of me.

    I have read about the accel pump in secondaries. Some say yes, some 
say no. Don't know what to do there yet. My base seems to have the 
circuit in it that allows gas to flow from the accel pump area into the 
next vertical hole in the base. I think you call it the power enrichment 
circuit. Anyway, on my base that next hole has a small metal ball, 
spring and t-shaped brass part to hold it in the hole. The hole has a 
nice machined hole in it near the top of the base to allow fuel to 
proceed into the venturi area. It also has a very thin, small cut on the 
base where the top half would meet the bottom half, just above the 
machined hole. This seems to allow even more fuel into the venturi. I 
test assembled the carb with a accel pump installed with rubber cup and 
put gas in it on the bench. When you operate the throttle, gas comes out 
of the cut area. If you operate the throttle quickly, gas come from both 
the cut and the hole below it. Both my bases have this ball,spring and 
cut. I don't know about the primaries. I hope I described this well 
enough to now ask the question. I don't see the ball,spring and t-shaped 
part in any carb kit or carb parts list in Clarks listing for carbs 
parts. The part that seems to be shown that does go in this hole is a 
plain brass needle valve.

    There, so what do the experts think I have here?

 Stan Naymola


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