The gears won't go in or the clutch won't go in? Your description is kind of vague. Is this while you are driving or while you are sitting still with the car on/off. If the car is off you should be able to put it in every gear, and if you can't do that, then either if you have a short throw shifter your shift stops are set too tight, or if you don't have a short throw something is seriously messed up in the trans.
If its your clutch, and you can't push your clutch pedal down, sounds like a kink in the clutch cable. I had that happen to me and I thought my whole transmission was f'd. If you have a kinked cable, then an adjustable cable and clutch quadrant/adjuster can help.
He said that wasn't the problem. So he checked again and its the PP not disengaging all the way. Everything is adjusted and its still not going into gear. He states that the PP is defective.
