When I connect the wastegate to the 14b turbo what do I use to hold the wastegate from sliding off that little flapper.

 

you either use a c-clip or a cotter pin. is they a hole or a little indent cutout all the way around the thing the rod slide over? you r talking about connectin the acutor to the flapper outside the turbo right? or you talking about connecting the flapper to the swivel thing inside the turbo?

 

Cotter pin

 

and just so you know. Your not connecting the wastegate to the turbo. The wastegate is inside the turbo. What your connecting is called an actuator.