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  •  » Power steering control valve

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    6/24/2020 6:05 AM  #1

    Marco
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    From: Milano - Italy
    Registered: 6/28/2013
    Posts: 67

    Power steering control valve

    Hello,
    I found oil leakage from the power steering control valve so after a deep study how to rebuild it the works starting.
    At the moment I have dismantled the control valve, today the spare pars arrived from USA so I can planing the work.
    Looking at some tutorial in the web I saw a man filling the bushing with grease and others not. I'm not sure to fill with grease is correct, I agree to wet the inside parts but i belive the grease should be in the external of the bushing where is necessary for the little stroke. Oil side no problem, appreciate your suggestion.
    Regards, Marco.

     

    6/24/2020 8:44 AM  #2

    Bentworker
    I FYI 24-7

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    Registered: 9/17/2017
    Posts: 437

    Re: Power steering control valve

    Pictures?

     

    6/25/2020 6:59 AM  #3

    Marco
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    From: Milano - Italy
    Registered: 6/28/2013
    Posts: 67

    Re: Power steering control valve



    Here the pictures, about the part inside the green cloud, where the grease has to be filled? completly also where the pivot working? My opinion is that inside the bronze bushing is not necessary to fill completly but it is enough only to wet with grease. In facct during the dismantling the part was not filled of grease.
    Thank you for your opinion, Marco.


       •Thread Starter
     

    6/25/2020 8:14 AM  #4

    RV6
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    From: Pine Junction, CO
    Registered: 3/01/2016
    Posts: 1,225

    Re: Power steering control valve

    I just coated the bronze bushing and ball stud in enough grease to make them slippery. Every spring I squirt a touch of grease in the grease zerk just to keep it slippery.

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    6/25/2020 10:35 AM  #5

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,779

    Re: Power steering control valve

    I believe that Gary is correct.
    Just the ball stud and it’s adjacent components are lubed with grease, the shuttle valve and the rest all rely on power steering fluid.
    If you haven’t already be sure to install new seats for the flared tubing, they are usually the cause of most leaks. Also there is a special clamp the secures the  two short hoses, it is a must.
    A shop manual is a good read for rebuilding the whole system.

    Last edited by Rudi (6/25/2020 10:36 AM)

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    6/25/2020 12:25 PM  #6

    Marco
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    From: Milano - Italy
    Registered: 6/28/2013
    Posts: 67

    Re: Power steering control valve

    Thank you for the confirmation.
    This is what I was thinking.
    Marco

       •Thread Starter
     

    6/25/2020 3:06 PM  #7

    TKOPerformance
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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,081

    Re: Power steering control valve

    I wouldn't worry about using grease in it.  Ford uses ATF in the steering system which is detergent enough to break the grease down in short order.  Its common to assemble auto transmissions with petroleum jelly.  The ATF just dissolves it. 

     

    6/25/2020 3:54 PM  #8

    RV6
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    From: Pine Junction, CO
    Registered: 3/01/2016
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    Re: Power steering control valve

    TKOPerformance wrote:

    I wouldn't worry about using grease in it.  Ford uses ATF in the steering system which is detergent enough to break the grease down in short order.  Its common to assemble auto transmissions with petroleum jelly.  The ATF just dissolves it. 

    TKO, the ball and stud portion of the Bendix Control valve does not come into contact with ATF, hence the grease zerk  just below the ball for yearly greasing.

    Gary Zilik - Pine Junction, Colorado - 67 Coupe, 289-4V, T5
     

    6/25/2020 4:18 PM  #9

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,081

    Re: Power steering control valve

    RV6 wrote:

    TKOPerformance wrote:

    I wouldn't worry about using grease in it.  Ford uses ATF in the steering system which is detergent enough to break the grease down in short order.  Its common to assemble auto transmissions with petroleum jelly.  The ATF just dissolves it. 

    TKO, the ball and stud portion of the Bendix Control valve does not come into contact with ATF, hence the grease zerk  just below the ball for yearly greasing.

    Yeah, I missed that green cloud the first time.  I though the was talking about the seals, etc. 
     

     

    6/25/2020 4:19 PM  #10

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,053

    Re: Power steering control valve

    Gary is correct.
    I packed mine with grease after through cleanup inside that chamber.
    Definitely use grease on the ball stud side during assembly, not transmission fluid at all.
    After the separation plate is installed, you can fill with grease with the zerk on the body.
    I would suggest doing it before placing rubber boot seal on to ensure it is full of grease.

    The rest of the control vale should be assembled with transmission fluid or light coat of grease.
    You don’t want the rubber seals catching or dragging.
    Before start up, I purged as much air as possible by rotating the pump with belt off.
    I used an Allen wrench in the pump shaft to rotate.

    Btw, the videos that say to use power steering fluid or transmission fluid for the ball stud.
    They should have their butts kicked.
    I wouldn’t put transmission fluid in a ball joint ever.

    Finally, use type “F” transmission fluid only for your power steering system.

    Last edited by Nos681 (6/25/2020 7:59 PM)

     

     

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