Reverse Lockout on 5 speed (how does it work).

[KeithMac]

Hello all, I'm having trouble with my 5 speed locking out reverse.

I've narrowed it down to the shift shaft and have a spare that's been smoothed to stop the cage binding.

How does the reverse lockout work?, is it soley to stop the gearbox from selecting reverse directly after 5th gear or is there more to it than that?.

One more thing, forward and backward on the gear shifter relates to side to side movement at the shift shaft, and reverse is fully down and toward the radiator on the shift levers when looking at the engine bay?.