How can i make a tanks turret rotate with a weld?

for example the weld would part0 would be the body and the part1 would be the turret mesh how would i rotate it towards the mouse(on the y rotation axis) here is the code i have so far

local hit=game.ReplicatedStorage:FindFirstChild("R"):InvokeClient(occupent,0x01)--get player who is sitting in the seats mouse CFrame
local x,y,z=CFrame.new(v.Turret.Position,hit.p):ToEulerAnglesXYZ()

turotweld.C0=   turotweld.C0= turorigionc0*CFrame.fromEulerAnglesXYZ(0,-y,0)--turotweld is the --weld i am using to rotate the turret, v.Body is the body part

this seems to "work" at first but you cant rotate the turret backwards