I've replaced my TRE's between the steering box and the relay today, and attempted to centralise the steering. All the tubes are measured to within the tolerances shown in the manual and the relay arms were in the correct position, but I had less lock on left hand down.
The drop arm of the steering box is touching the bulkhead with left hand down, I'm thinking that the arm has been off in the past and not replaced in the right place. Should the steering lock engage when the steering box is centralised?