Gearbox 3rd and 4th gear

[soniquethedog]

I e just purchased a second hand gearbox whilst mine is being rebuilt, but when I try and adjust the linkage, I can't get all the gears,when I tweak it from having 1st and wed, I can't get 3rd,when I adjust it the other way I get 1st lose 2nd and get 3rd and 4th, any ideas? When the linkage is off and the gears are in neutral, should I be able to push it from 3rd and 4th? As I can't get either

[multisi]

Before the second hand box was fitted were you able to get all the gears by operating the nylon ball shift bracket on the gearbox by hand.

[jebiga41]

is it a 4 or 5 speed box ? sounds like either your linkage is worn including the ball and or cup and tips and or your a spline out. As Multisi has said drop off the linkage and you should be able to engage all gears by hand if not the box needs a rebuild

[van_de_volk]

I got a used 5sp gbox that wouldnt shift to 1st, easily.
I did what the T3 workshop manual from Bently Ltd said to do.
I think the important bit was to remove the round cover plate off the side of the box and clean inside it.
Also I changed nylon bushes on the change rod.