Power steering hose replacements/substitutes

[1991 Corvette ZR-1]

Alright, this will probably be silly to some but I think I found a path. If I remove the frame to bumper brace above the coolant overflow tank, I have a pretty straight shot to the hex head on the clamp with an extension. Just posting pic of how I intend to do it. You can see the silver clamp buried in there in the background.

[secondchance]

Originally Posted by 1991 Corvette ZR-1

Yeah, the factory compression clamp. Good call on the shrinking of the silicone, looks like I am using the smooth hose clamps I have. Back on the creeper and under the car again to have a look. Do you mind posting a picture of your clamp placement on the hose connected to the thermostat housing? I am trying to have the hex head/ flat blade fastener side face out to the passenger side or point toward the overflow tank, so I can snake a tool in there to reach it, but so many hard lines and hoses in the way.

A long neck flat blade screwdriver snaked down to it from the top is tough. And I know these clamps need to be pretty tight or you can have a leak. I have found a flat blade screwdriver just deflects out of the slot once you require extra force to tighten it. Maybe I will play with some extensions and swivel sockets and the appropriate socket to reach that area.

A bit tough to take pics without having the car on a lift. I reach it with car of a lift or on jacks from the bottom and use socket and 1/4" drive ratchet.

[Jagdpanzer]

Here are pics of my thermostat hose connections
IMG_1223.JPGIMG_1225.JPG


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[1991 Corvette ZR-1]

Trying to break down the power steering pump and the 1991 FSM has the following on page 3B1-8

DRIVE SHAFT ASM, DRIVE SHAFT SEAL
1. Pump assembly from vehicle
2. Retaining ring (19) from housing (1)
3. Driveshaft (17) and ball bearing assembly (18) from housing.

And that is it. Nothing special noted on the shaft of the PS pump with the bearing pressed on. It will not come out once the retaining ring is removed, because that is where I am at. Pulley off, retaining ring removed and the shaft will pull up and cover the groove where the retaining ring was, but will not go any further. Anyone else run into this issue?

[1991 Corvette ZR-1]

Got it figured out. Found an article on an C4 PS pump rebuild. Jr, the guy that rebuilt another rack for me, used a slide hammer to get the shaft and bearing out. Being the lazy man that I am, I just used a long bolt I had on hand with some washers on it, threaded it into the shaft and the PS pump became the slide hammer. Came out pretty easy.

http://www.superchevy.com/how-to/eng...rn-one-systems

[Prez1967]

Glad I stumbled on this thread as Im getting ready to remove my rack as well to send off to TurnOne. Sounds like doing the pump at the same time is the right way to go.

Im rebuilding the suspension and currently looking for upgrading my sway bar bushings "while Im in there". Any suggestions on bushing sources?

[1991 Corvette ZR-1]

Originally Posted by Prez1967

Glad I stumbled on this thread as Im getting ready to remove my rack as well to send off to TurnOne. Sounds like doing the pump at the same time is the right way to go.

Im rebuilding the suspension and currently looking for upgrading my sway bar bushings "while Im in there". Any suggestions on bushing sources?

The version I have is Prothane. I rebuilt the whole suspension some time ago with prothane but I kept the poly bushings designed to go onto the rack and pinion. I tossed those in the crate I sent to Turn One to install while they had everything apart. There is also Energy Suspension brand bushings but you probably cannot tell the difference between the two but others can chime in.

I was able to reach the 8mm oil pressure regulator block off plate bolts pretty easy and they were loose, so I tightened those down. There is no way to get to these without raising the engine, according to Marc?s article on his site. Thankfully, with the rack out, I have the room to work on it. I released the wire harness that runs down in front of it and was able to get a 8mm wrench on the one in the front. Once you have your rack out, it could be a good idea to check these if that area looks wet like mine.

The one in the back I could get to once I gently pulled the harness with the O2 and crank sensor all the way out from the front. And that harness is filthy, soaked and caked in oil. Makes sense as it rests right near that block off plate that had a leak. There is another little side project: I will be pulling that harness all the way out to clean.

And then some...

[1991 Corvette ZR-1]

I know this thread is all over the place, but I?m doing little things while the rack is out at Turn One. I cleaned everything up on the engine oil pan and after a few days of sitting, I had a significant leak coming from the low oil sensor that had coated a good portion of the bottom of the pan in just a few days on the stands. So I ordered a low oil sensor from Zip:

https://www.zip-corvette.com/90-92-o...AaArvkEALw_wcB

I got this and it?s about 3/4 an inch longer than the stock one. I don?t believe it will interfere with anything. Anyone else using one of these? Ecklers has them as well for nearly $70 but they look like the same type.

[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.