I have a Triumph herald 13/60 1971 the engine runs well but when I select gear, any gear, the prop shaft won’t turn and so the wheels won’t turn. The wheels are free, I can turn the rear wheels by hand and the prop shaft turns. I have replaced the clutch servo and bled it and also the clutch plate and clutch pressure plate but I still have the same problem. the gearbox is leaking oil im not sure this a problem.
Basically I can select ANY gear without depressing the clutch pedal with the engine running and the wheels wont turn, it also happens when I press the clutch pedal
Please note there Is no noise or grinding of any kind the gearbox goes into gear freely with or with clutch pedal depressed or engine on or off but no drive
Thank you Andrew