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Thread: Power steering

  1. 10th January 2015, 09:20 AM #21
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    Rick1970
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    Lifting relief pressure won't have a great deal of affect at idle, which is where I'm guessing your having the most issues (parking etc), due to low pump input shaft speed/inificencies. Hence the 400psi @ idle specs.


    One way out would be to run an assist ram plumbed into the steer box like the big tyred Nissan/Toyota boys do, increase the surface area the pressure is working on. Legality would be very iffy tho.


    Slight increase in pump pressure and pump shaft speed at idle may work (ie, change pulley ratios).


    As others have said, check mechanicals 1st. My '86 on 245's @ 28psi is very light in the steering, even at idle.
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  2. 10th January 2015, 09:37 AM #22
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    Chucaro
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    Quote Originally Posted by PhilipA View Post
    Have you checked the unis in the steering column? When they fail it usually gives hard/easy but can stiffen the lot up.
    Regards Philip A
    The top uni looks bad, I lubricated it and improved a bit.
    I will order a new part.
    When this universal is in bad condition generally give you hard spots on the the turning circle and I have problem on the full radius.
    I guess that I am very optimistic in trying to improve it to suit my problem, in bad days is painful to turn the ignition key and not to mention to open the hood
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  3. 10th January 2015, 09:39 AM #23
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    Chucaro
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    Quote Originally Posted by Rick1970 View Post
    Lifting relief pressure won't have a great deal of affect at idle, which is where I'm guessing your having the most issues (parking etc), due to low pump input shaft speed/inificencies. Hence the 400psi @ idle specs.


    One way out would be to run an assist ram plumbed into the steer box like the big tyred Nissan/Toyota boys do, increase the surface area the pressure is working on. Legality would be very iffy tho.


    Slight increase in pump pressure and pump shaft speed at idle may work (ie, change pulley ratios).


    As others have said, check mechanicals 1st. My '86 on 245's @ 28psi is very light in the steering, even at idle.
    Thanks for your valid points.
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