Jon or Denny or anyone else for that matter. When I opened up my NOS carb to inspect, clean, and renew the gaskets and Diaphragm assembly I was fairly careful and took a few photos. Of course, due my inexperience, when I turned it upside down out popped a small brass or bronze needle valve. This is the pump discharge needle I think.
This photo shows the square end of the needle located just above the pump assembly at about the 12:30 position
My research indicate that a ball check was commonly used although there are some carbs using a needle. My initial confusion arose because the Carter Instruction sheet calls out a pump discharge weight and a pump discharge ball.
Is one preferred over the other? My inclination is to leave it as found.
Another observation is the accumulation of white powder around the gasket flange and porting. Would this be from varying atmospheric conditions during long time storage? The carb shows no other visible signs of ever having been used.
Thanks,
Don
