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Gearbox jammed ? Why ?
Took out the gearbox today. Opened it, and found nothing which might give me a clue, except one thing - I can push the selector rod far inwards, and then the box jams. It moves one of the two gear shifters way backwards snd then I cannot turn the input shaft by hand anymore, not even with a mole grip.
Problem is I have no clue how to stop this behaviour. This rod is not original to this box, so just as a maybe, did they make different rods ? I know they exist with or without the cutout for the sealing o-ring, but did they have longer or shorter cutouts for the actuator plate ? When moving the rod too far backwards, the cutout plate is in a position so that the other two shafts are locked, and the angled end inside the box then takes the selector fork too far by 2-3 mm. See picture. If the cutout on the rod would be shorter, then it would be stopped sliding inside the plate earlier.
At least none of the gears / Synchro meshes seem to make trouble, it is a problem with the selector part.
All I can think of is that the rod needs a shorter cutout at the actuator plate.
Other ideas ? I did chamfer the actuator plate near the spring - based cone, to easen up selecting backwards, as suggested here, but that cannot be a reason ?
P.S. - yes I know the small roll / cylinder is missing inside the slot of the actuator plate. I have it, it was there, when it happened, and it happens with it correctly fitted. The picture was taken to show how deep the rods are pushed.
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Took out the gearbox today. Opened it, and found nothing which might give me a clue, except one thing - I can push the selector rod far inwards, and then the box jams. It moves one of the two gear shifters way backwards snd then I cannot turn the input shaft by hand anymore, not even with a mole grip.
Problem is I have no clue how to stop this behaviour. This rod is not original to this box, so just as a maybe, did they make different rods ? I know they exist with or without the cutout for the sealing o-ring, but did they have longer or shorter cutouts for the actuator plate ? When moving the rod too far backwards, the cutout plate is in a position so that the other two shafts are locked, and the angled end inside the box then takes the selector fork too far by 2-3 mm. See picture. If the cutout on the rod would be shorter, then it would be stopped sliding inside the plate earlier.
At least none of the gears / Synchro meshes seem to make trouble, it is a problem with the selector part.
All I can think of is that the rod needs a shorter cutout at the actuator plate.
Other ideas ? I did chamfer the actuator plate near the spring - based cone, to easen up selecting backwards, as suggested here, but that cannot be a reason ?
P.S. - yes I know the small roll / cylinder is missing inside the slot of the actuator plate. I have it, it was there, when it happened, and it happens with it correctly fitted. The picture was taken to show how deep the rods are pushed.
(Feed generated with ********)
More...