Not installed correctly. Either the rack isn't centred correctly or the tracking adjustment is wrong.
Bad coupling from the steering wheel to the rack & pinion or steering gear. Faulty steering gear
Steering wheel was installed upside down or the steering wheel is turned 180 degrees.
A crown and pinion are used in steering and driving. A pinion gear is used to steer against the force of gravity, while the crown is a wheel with cogs lining along its rim.
I really can't emagine why you would want to do such a thing. The standard rack and pinion will have to be installed also.
That would be the nut that holds the steering wheel to the steering shaft.
Without the teeth meshing together, there would be no transfer of power/force from one pinion/spur wheel to its neighbour. Without the teeth on the main drive shaft gear wheel, you would not be able to turn the rest of the pinion and spur wheels.
it depends on what you mean by not to turn. side to side or move forward backwards.(stall) if you driving and when you turn the steering wheel the vehicle stops moving then the problem may be your cv axles some how disconecting from the transaxle. if you mean you turn the steering wheel and the wheels don't do anything then your rack and pinion is bad,or your steering column or u joints are loose/disconected. also check where the column and rack interlock sometimes that screw strips and the steering wheel turns but it would not transfer the motion to the rack. how does the steering wheel feels. same,loose,keeps turning endlessly?
A steering wheel would steer a boat, and a captain would be controlling the steering wheel.
Why would you want to tear a steering wheel apart
Make sure the Rack & Pinion assembly bolts have not come loose. Also check the linkage from the steering column to the rack.
It is almost certainly unsafe to drive a car with a damaged rack and pinion. The rack and pinion are the means by which inputs on the steering wheel are passed to the road wheels (http://en.wikipedia.org/wiki/Rack_and_pinion). If the rack and pinion were to fail while the car was being driven, the driver would lose control of the vehicle's steering. If you suspect your rack and pinion to be damaged, the car should be inspected by a qualified mechanic before being driven. Depending on the type of damage, it may be possible to drive the car to a repair shop, or it may need to be towed.
could be several places, power steering hose, rack and pinion (or steering gear box) or power steering pump.