Acute healing failure occurs when the load placed across the wound exceeds the resistive capacity of the suture line and provisional matrix. This failure usually occurs when there is abnormal progression through the integrated phases of acute tissue repair.
The result of these defects was that the gearbox wouldn't cleanly select second gear. This photo shows the gearbox after trying to select 2nd gear. The 'roller' hasn't full engaged in the 'gear cam' and so inside the gearbox the second gear is not fully engaged either. By turning the input shaft a notchiness could be felt which was the dog clutch partly engaging. It was also difficult to then get the gearbox out of this state into any other gear.
Note that the gears will be turning at different speeds as they approach each other.
As the gears touch even though the dog clutch is not lined up there is little friction because the touching surfaces are both flat and perpendicular to the rotation of the gears.
Because the gears are turning at different speeds and because the touching surfaces are not perpendicular the dog clutch cannot merge and mesh fully. In this situation 2nd gear cannot be engaged. So, drive in today and avail the Give your car the never before experience and that's A P Motors Service for you.