Power Steering Flow Valve
My 65 Chevelle has power steering that has never worked since I bought the car. The power steering never has power, and the fluid would eventually drain out - even though all the hoses and fittings were tight and not leaking. A local mechanic eventually told me that I need a "check valve" between the pump and the reservoir that was a part that was typically forgotten when someone would replace the stock reservoir. That was what he thought was wrong with the power steering system.
My car came with a new (well, non-stock) reservoir, and I have no idea about this "check valve". I assume he means the flow control valve which is the closest thing I could come up with when searching the forums here.
My questions (in no particular order):
1) Is it possible to buy a new valve for my 1965 power steering pump, and if so, where?
2) Is the check valve that this guy is talking about actually a flow control valve?
3) Is there a "generic" valve that will have the correct flow rate or will I need something specific to my car? Do GM cars share valves, so one from another model might work?