How to improve PS
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Senior User
Joined: Nov 2016
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How to improve PS
My PS isn't as smooth as I would desire. Always wandering and very easy to move without any response to the driver. Some allotment is due to 35 Tires, but the steering is by instinct a bit spongy.
Always some alteration of pressure and slackness to sense in the steering wheel.
Ok, thats all new to me, never had an american PS before.
What is your expert knowledge, is there room to improve our steering?
nevertheless proud owner of 1977 F150 4x4!!
Gerhard
Always some alteration of pressure and slackness to sense in the steering wheel.
Ok, thats all new to me, never had an american PS before.
What is your expert knowledge, is there room to improve our steering?
nevertheless proud owner of 1977 F150 4x4!!
Gerhard
Fleet Mechanic
Joined: Sep 2014
Posts: 1,626
Likes: 78
From: NE Texas
Check all the suspension bits like tie rod ends... very little wear can have exaggerated effects. Jack the front end up and start wiggling the wheels in various directions to see what is loose. That will give you a good start.
Postmaster
Joined: Nov 2011
Posts: 2,553
Likes: 10
Alignment matters also. Some positive caster helps keep steering stable and centered up. At least 0.5 degree positive. Have you had alignment checked?
It is a bit involved to change caster on a 4 x 4... either offset bushings on the axle/steering knuckle joint or axle to spring shims. When I had mine checked, caster was a bit more positive than OE specs and I was happy w/o adjustment.
It is a bit involved to change caster on a 4 x 4... either offset bushings on the axle/steering knuckle joint or axle to spring shims. When I had mine checked, caster was a bit more positive than OE specs and I was happy w/o adjustment.
Cargo Master
Joined: Apr 2010
Posts: 2,600
Likes: 64
From: Billings, MT
These trucks have too much assist imo. On first generation lightnings (93-95) steering feel could be improved by removing the spring from the pump outlet fitting and cutting a few loops off.
I plan to try this on my 77
I plan to try this on my 77
Fleet Mechanic
Joined: Sep 2014
Posts: 1,626
Likes: 78
From: NE Texas
I have not personally tried it but there is a limiting valve which can be installed on the PS output line which reduces the amount of power input be reducing fluid flow.
Borgeson offers a pressure reduction kit (part number 899001) according to Perfect Power Steering - Hot Rod Network if you have the right Saginaw OEM pump. sold by Summit at https://www.summitracing.com/parts/brg-899001 Heidts makes an adjustabe reducer, too ADJUSTABLE POWER STEERING VALVE (PS-101) - HEIDTS.
Borgeson offers a pressure reduction kit (part number 899001) according to Perfect Power Steering - Hot Rod Network if you have the right Saginaw OEM pump. sold by Summit at https://www.summitracing.com/parts/brg-899001 Heidts makes an adjustabe reducer, too ADJUSTABLE POWER STEERING VALVE (PS-101) - HEIDTS.
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