Power steering pressure check
 

Power steering pressure check

Started by Jsrcaptain, July 03, 2021, 09:21:05 AM

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Jsrcaptain

1972 MC5B 8V71

I'm wondering where would be a good place to tap into the power steering pressure side for a gauge. Manual says it should be 1500 psi.

Thanks
1972 MCI MC5B, 8V71 NA
Baraboo, Wisconsin

dtcerrato

I don't rightfully know the answer, we have power assist and I would guess a tap would be at the outlet of the pump?
Dan & Sandy
North Central Florida
PD4104-129 since 1979
Toads: 2009 Jeep GC Limited 4X4 5.7L Hemi
             2008 GMC Envoy SLT 4x4 4.2L IL Vortec

Jsrcaptain

I'll try to find a place to T into I guess.
I removed the reservoir and changed some hoses. Refilled and haven't driven on the road. It just seems a little stiff. I double-checked to make sure I didn't reverse the hoses.
1972 MCI MC5B, 8V71 NA
Baraboo, Wisconsin

Jriddle

Might try to get both front wheels off the ground and turn it full travel each way several times to work the air out if you haven already done that.

John
John Riddle
Townsend MT
1984 MC9

dtcerrato

Quote from: Jsrcaptain on July 03, 2021, 10:29:47 AM
I'll try to find a place to T into I guess.
I removed the reservoir and changed some hoses. Refilled and haven't driven on the road. It just seems a little stiff. I double-checked to make sure I didn't reverse the hoses.
When you say you removed the reservoir & changed some hoses. Is the reservoir back where is was or did you change the configuration with the reservoir farther away from the pump? If so - I'm making another guess that the pump is laboring to get the fluid it needs fast enough?
Dan & Sandy
North Central Florida
PD4104-129 since 1979
Toads: 2009 Jeep GC Limited 4X4 5.7L Hemi
             2008 GMC Envoy SLT 4x4 4.2L IL Vortec

luvrbus

The pressure test port is on the steering box a 1/8th plug install a gauge turn to the left till it bumps
Life is short drink the good wine first

Jsrcaptain

Thanks, I'll check it out.

And everything was reinstalled to the original configuration.
1972 MCI MC5B, 8V71 NA
Baraboo, Wisconsin

richard5933

If your power steering system is anything like the GM full power steering, be sure your thumbs and fingers are outside the steering wheel if you raise the wheels to turn it back and forth to bleed the system. The GM manual warns about the wheel being able to jerk back hard enough to break a finger.

While you were back there working on the system, did you change the two filters?
Richard
1974 GMC P8M4108a-125 Custom Coach "Land Cruiser" (Sold)
1964 GM PD4106-2412 (Former Bus)
1994 Airstream Excella 25-ft w/ 1999 Suburban 2500
Located in beautiful Wisconsin

Jsrcaptain

I replaced the reservoir filter and cleaned the strainer. I'll watch my hands, thanks for the tip.
1972 MCI MC5B, 8V71 NA
Baraboo, Wisconsin