Replaced a american standard 11K-3H/C faucet stem and barrel.
It is leaking. The valve opens (twist the handle to the left) but when twisting the handle to close and turn off water the handle will continually turn left does not stop.. any ideas?

I
Replaced a american standard 11K-3H/C faucet stem and barrel.
It is leaking. The valve opens (twist the handle to the left) but when twisting the handle to close and turn off water the handle will continually turn RIGHT does not stop.. any ideas?