2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.

Power steering mixup. S4, s5...

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Old Aug 22, 2006 | 06:58 AM
  #1  
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Power steering mixup. S4, s5...

Hi,
I have a s4 powersteering in my 1988 turbo2. I aint got the s4 powersteering pump but i have a s5 pump. The s4 seems to have one extra pipe from the pump to the powersteering-rack. How can i use the s5 pump with the s4 rack? Do i have to use a s5 pump to with a s5 rack....

Sindre
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Old Aug 22, 2006 | 07:21 AM
  #2  
SureShot's Avatar
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From: Orange Park FL (near Jax)
I swapped the pump by using the S4 pump's tank & servo valve control parts with the S5 hydraulic pump.

The S4's speed sensing setup is superior to the S5 NA's RPM sensing design anyway.

FWIW, the S5 turbo uses the same setup as the S4's.

Last edited by SureShot; Aug 22, 2006 at 07:26 AM.
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Old Aug 22, 2006 | 09:19 AM
  #3  
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im not able to use any of the s4 power steering stuff. The only parts i have is:
2 s5 pumps (with control valves etc)
1 s4 steering linkage
1 s5 'steering linkage

Can i block of the extra connection on tHe s4 steering linkage/gear and use the s5 pump like as a s5 or do i have to use the s5 steering linkage?

sindre
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Old Aug 28, 2006 | 05:52 AM
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Update..
I used the s4 steering rack with the s5 pump/valve etc... it works okey when i blocked of the smallest line from the s4 rack..

Sindre
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