1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

84-85 power steering boxes VARIABLE PRESSURE?

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Old 09-14-09, 09:52 AM
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84-85 power steering boxes VARIABLE PRESSURE?

My Dad is doing a project using a 1st gen power steering box, and we were curious about the "control valve" mounted on the pump. It seems these boxes are capable of changing the pressures (steering effort and feel). I thought only later 2nd and 3rd gen steering systems were variable, can anyone shed some light on this?
Old 09-14-09, 04:40 PM
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1st gen Power steering is speed dependent. More details can be found in the 85 service bulletin and 85 FSM.

http://wright-here.net/files/manuals..._bulletins.pdf
http://wright-here.net/cars/rx7/85_manual.html
Old 09-14-09, 05:05 PM
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It has a processor that is attached to the clutch/brake pedal assembly.
Old 09-14-09, 08:43 PM
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Fixed the wheelhop

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Originally Posted by 74RX4
1st gen Power steering is speed dependent. More details can be found in the 85 service bulletin and 85 FSM.

http://wright-here.net/files/manuals..._bulletins.pdf
http://wright-here.net/cars/rx7/85_manual.html
Thanks for the link to the 85 FSM, good stuff! I suppose bypassing this valve would cause the pump to produce max pressure at all times?
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