Power steering hose replacements/substitutes

[secondchance]

I don?t know. I replaced mine with a version from Jerry?s gasket.
Below would be correct OEM for 91.
https://www.jerrysgaskets.com/sensor...vel-91-92-1g2/

[1991 Corvette ZR-1]

Originally Posted by secondchance

I don?t know. I replaced mine with a version from Jerry?s gasket.
Below would be correct OEM for 91.
https://www.jerrysgaskets.com/sensor...vel-91-92-1g2/

Thank you for this! I looked but I only saw the 93-95 sensors. Reason I replaced was the plug was soaked inside and the leak appeared to also be coming out from the washer.

[Roadster]

Hello Jamall.....I am also going to change out the hoses on mine....I found a high pressure hose...from the pump to the gear........are you changing the cooler assembly outlet hose from the pump to the cooler... the gear outlet hose assembly from the gear to the cooler.....and the reservoir hose to the pump???
Also did you use metric crow's feet to undo the connections to the gear???
I have the front sway bar out....but don't want to undo the cooler until I undo the gear connections.....any tips will be appreciated.....thanks...:

[1991 Corvette ZR-1]

Originally Posted by Roadster

Hello Jamall.....I am also going to change out the hoses on mine....I found a high pressure hose...from the pump to the gear........are you changing the cooler assembly outlet hose from the pump to the cooler... the gear outlet hose assembly from the gear to the cooler.....and the reservoir hose to the pump???
Also did you use metric crow's feet to undo the connections to the gear???
I have the front sway bar out....but don't want to undo the cooler until I undo the gear connections.....any tips will be appreciated.....thanks...:

Hi Tom, the plan was to change as many hoses out as I can. The cooler hose to rack has what looks like a special one time clamp on it. That hose appears to be in good shape, so I plan to keep that one. The others are a little rough. The line that runs from the reservoir to the cooler has 3/8 indicated on the side of it. The U-shaped hose that runs from the pump to reservoir does not have a size indicated. I could probably get by reusing all these hoses but, they are hard as bricks.

For the fittings, I actually used a regular adjustable wrench, I just made sure it was as snug as possible. I will say I tried a crow foot 17mm which was too small and then a 19mm which was too big. So the one crow foot wrench I needed, the 18mm, I lost somewhere. I have a set of line wrenches in standard measurement and they fit on every other fitting on this car, except for the fittings on the rack. 5/8 line wrench will fit great on the high pressure hose fitting going into the pump.

I do not think you can successfully get to all the connections without removing the unit from the engine. The angles you need to get a wrench on fittings and apply leverage pretty much impossible in car. Even with taking some of the side skirt off, at least that was the case for me. And I tried to cheat by gently negotiating the PS assembly into the space the rack was after the rack had been removed and I gave in to do it the right way and drained the coolant.

This is the part I got stuck on. The driver side coolant tube has to be removed along with the elbow hose to make room for pulling the PS assembly up and out. The torx bolts would not budge and one started to show signs of stripping. I hate dealing with them, so I wussed out and sent mine to Pete to get them out. He sent me a pic of the aftermath ...it made me glad I did not double down on trying to remove them.

[Roadster]

Originally Posted by 1991 Corvette ZR-1

Hi Tom, the plan was to change as many hoses out as I can. The cooler hose to rack has what looks like a special one time clamp on it. That hose appears to be in good shape, so I plan to keep that one. The others are a little rough. The line that runs from the reservoir to the cooler has 3/8 indicated on the side of it. The U-shaped hose that runs from the pump to reservoir does not have a size indicated. I could probably get by reusing all these hoses but, they are hard as bricks.

For the fittings, I actually used a regular adjustable wrench, I just made sure it was as snug as possible. I will say I tried a crow foot 17mm which was too small and then a 19mm which was too big. So the one crow foot wrench I needed, the 18mm, I lost somewhere. I have a set of line wrenches in standard measurement and they fit on every other fitting on this car, except for the fittings on the rack. 5/8 line wrench will fit great on the high pressure hose fitting going into the pump.




I do not think you can successfully get to all the connections without removing the unit from the engine. The angles you need to get a wrench on fittings and apply leverage pretty much impossible in car. Even with taking some of the side skirt off, at least that was the case for me. And I tried to cheat by gently negotiating the PS assembly into the space the rack was after the rack had been removed and I gave in to do it the right way and drained the coolant.

This is the part I got stuck on. The driver side coolant tube has to be removed along with the elbow hose to make room for pulling the PS assembly up and out. The torx bolts would not budge and one started to show signs of stripping. I hate dealing with them, so I wussed out and sent mine to Pete to get them out. He sent me a pic of the aftermath ...it made me glad I did not double down on trying to remove them.

Thanks for the reply Jamall....still trying to understand the procedure you did to remove the rack....as mentioned I have the sway bar out and have tons of room because of the radiator and fans are out of the engine compartment.... it seems that if I undo the cooler I will get access to the bolt....but it also seems that at least one hose needs to be disconnected before the rack and cooler can come out.....maybe I am just missing something that is right in front of me.....but it still seems that one connection from the gear needs to be removed before going forward.....also....will not be a problem for me to remove the LS coolant pipe...as I have had mine removed before....so that should not be a problem....again thanks for all of the info....

[1991 Corvette ZR-1]

If you are talking about the large bolt securing the rack, I did not bother that one until the cooler was out of the way. The wrench size appears to be 18mm for that fitting going to the rack from the cooler. There are four 10mm bolts holding the cooler on. It is pretty light once you undo the last bolt and I kept mine level taking it off to set aside. You may not have to remove the cooler, just the line from the rack. I removed my cooler because I wanted to also remove and clean the bar assembly the cooler bolts to. As long as you remove the fitting from the rack, you can let the cooler hose hang free.

With the cooler line off the rack along with the high pressure hose coming from the PS pump, the only things left are the main bolt and the smaller two bolts on the passenger side. I pulled the rack out through the driver side. The FSM does not state to remove the cooler but I had already introduced air into the system at that point anyway and with it off I had more free room.