I swapped the factory box in my '80 Malibu coupe with a used box from a Grand National and rebuilt the pump. The "power" part of the power steering is not working and I have a few questions about how to narrow down the problem before I start swapping out parts.
I rebuilt the pump and replaced both the pressure and return hose. I bled the system by turning the steering lock to lock several times with the engine off, then with the engine on until the fluid level stabilized and there were no longer any bubbles in the fluid.
I believe the pump is the original unit from the factory V6 (car was swapped to a 305 before I bought it). The new used box came from a reputable seller on eBay who claimed it was tested before shipped. There are no leaks and no abnormal noises.
My first question is, how can can I determine if the problem is in the box or the pump other than swapping back the old box?
My second question, is it possible that nothing is wrong with the pump, but it's just not the right spec for this faster ratio box and I need a different pump?
My third and final question, I replaced the hoses with part numbers for a 305 car rather than a V6 car. Because of the shape of the hard line portion (which appears consistent across all part manufacturers) the pressure line forms an upside down U-shape which is higher than the reservoir. Could this be trapping air and preventing the box from receiving pressure? https://i.imgur.com/1ldYkgO.jpg
I rebuilt the pump and replaced both the pressure and return hose. I bled the system by turning the steering lock to lock several times with the engine off, then with the engine on until the fluid level stabilized and there were no longer any bubbles in the fluid.
I believe the pump is the original unit from the factory V6 (car was swapped to a 305 before I bought it). The new used box came from a reputable seller on eBay who claimed it was tested before shipped. There are no leaks and no abnormal noises.
My first question is, how can can I determine if the problem is in the box or the pump other than swapping back the old box?
My second question, is it possible that nothing is wrong with the pump, but it's just not the right spec for this faster ratio box and I need a different pump?
My third and final question, I replaced the hoses with part numbers for a 305 car rather than a V6 car. Because of the shape of the hard line portion (which appears consistent across all part manufacturers) the pressure line forms an upside down U-shape which is higher than the reservoir. Could this be trapping air and preventing the box from receiving pressure? https://i.imgur.com/1ldYkgO.jpg