Model 20 - can't get into gear

[1912Minerva]

Hi All,

 

I'm having a problem with my Model 20 in that I cannot get into gear, I just get a heap of grinding noise as soon as I try and select any gear (1, 2 or reverse).  The strange thing is that a couple of weeks ago I could select gears easily, drove it on and off a trailer etc.

 

The only thing I know I've changed is the clutch actuator shaft which I've backed out as far as possible to get the maximum amount of travel from depressing the clutch pedal.  I thought that would make the difference but it hasn't.

 

Do these gearboxes have a 'clutch brake' ?

 

Any help (as usual) much appreciated.

 

Regards,

 

Andrew.