The new engine will be without the gears, so it must somehow be removed. She picked up her scissors-is removed. So problems with the gears should not be.
The problem was that the new axis of the motor is too long, do not intermeddle this axis in place of the old motor. So we had to saw off the axis.
Now collect the compressor (do not forget to remove the motor metal "shirt" with markings, and that will be difficult to close the compressor).
After repair naturally checked how it works. Tire pumps, all is well.