Re the ball bearing...I would want a good stock of those cause I would loose it every time I took that cap off.
You could always glue the ball bearing to the push rod .
The good thing about the Tecumseh needle is that it fits the 3/16 hole Norm , so saves work because it doesn't need turning down but you would probably need to buy 12 seats and needles to be cheaper and pay no postage.
About $4.50 for one Tecumseh needle with seat.
I also like the alloy needle because it's easily drilled so it can be tied to the float.
It's probably less work than trying to polish the seat to get the Viton needle to work.
