1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Help identifying which power steering setup I have..

Discussion in '40- & 55-Series Tech' started by GadgetPhreak, Apr 16, 2018 at 6:03 PM.

  1. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    I've recently picked up my 3rd 40, 1st one with power steering.. I need help identifying which system was installed. I don't think it's a Saginaw box, but there's definitely a custom bracket on the frame so I don't think it's an OEM system that's been retrofitted..

    Here's a few photos, any help is appreciated.

    20180416_224455636_iOS.jpg

    20180416_224442164_iOS.jpg

    20180416_224426334_iOS.jpg

    20180416_224414354_iOS.jpg

    20180416_224345593_iOS.jpg
     
    Last edited: Apr 16, 2018 at 7:31 PM
  2. 69LC

    69LC

    Messages:
    1,931
    Likes Received:
    1,031
    Joined:
    Jan 12, 2008
    Location:
    Allendale, MI near GVSU
    Looks like the common mini-truck PS box and Saginaw pump. I'm pretty sure a quick search for those terms here would get you some possible sources.

    It also looks like you may need to post some overall truck pics to give us more to work with...
     
    shawnfj40 and mrboatman like this.
  3. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    Thanks, pics below (PS - my quick hinges are on their way which will go on a set of custom half doors I'll be building).

    00g0g_kbmwtFzhVp_1200x900.jpg

    00L0L_hypXrBgyvq4_1200x900.jpg

    00p0p_8sbVEDQl78a_1200x900.jpg

    00W0W_knmC6lO9C9t_1200x900.jpg

    00404_hxS0h3tRmxZ_1200x900.jpg
     
  4. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    I should also mention that, while the power steering works well, it is really twitchy on the road (more than the other two I owned). I noticed that the tires were crowning quite proudly (I run the same tires on my Pinzgauer, so it was noticeable) and found that the PO had them filled to 47psi... I dropped them down to factory recommended pressure (32psi) and will chalk test them this weekend. That helped quite a bit, but I think there's still room for improvement.
     
  5. pjohnson

    pjohnson SILVER Star

    Messages:
    1,207
    Media:
    107
    Albums:
    11
    Likes Received:
    297
    Joined:
    Jan 15, 2003
    Location:
    GarlicLand, Kalifornia
  6. jim land

    jim land SILVER Star

    Messages:
    1,122
    Likes Received:
    869
    Joined:
    Aug 6, 2007
    Location:
    scott quebec
    Check your caster, its possible that you need shims to get it to +2 or 3 positive for better handling , also your relay rod angle can cause bump steer
     
    GadgetPhreak likes this.
  7. jim land

    jim land SILVER Star

    Messages:
    1,122
    Likes Received:
    869
    Joined:
    Aug 6, 2007
    Location:
    scott quebec
    Nice 40, I like the white steelies
     
    GadgetPhreak likes this.
  8. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    Thanks - that's on the list.. working my way through a few things and just enjoying it for now. My 19yr old daughter has been asking to learn to drive stick for a while. I took her down to an open area and she was grinning from ear to ear as she learned the basics and putted around the neighborhood in "the fire truck" and loved every minute of.. so did I ;)
     
  9. 69LC

    69LC

    Messages:
    1,931
    Likes Received:
    1,031
    Joined:
    Jan 12, 2008
    Location:
    Allendale, MI near GVSU
    @GadgetPhreak Awesome rig!

    With the added power steering and longer shackles, you have two strikes against your steering handling. With the addition of the shackles, you need a bit more castor. With the addition of power steering you need a lotta bits of castor. If I'm good in my PS swapping and studies, it's something around 6-7 degrees positive compared to the stock 1-ish if you're on a slight uphill. Try some 4-6 degree steel castor wedges, and check all of your steering joints for wear.

    The reason for needing the lots of extra castor with a PS swap is to give you the return-to-center feel with the added steering power.
     
    Last edited: Apr 16, 2018 at 9:48 PM
    S.CarolinaFZJ80 and GadgetPhreak like this.
  10. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    Thanks!
     
  11. Downey

    Downey

    Messages:
    3,882
    Likes Received:
    945
    Joined:
    Jun 5, 2007
    Location:
    Brea, Calif.
    I noticed you do not have much belt wrap on the power steering pump pulley, ideal would be 50% wrap minimum. Problem in off road terrain can be every time your front tires hits a rock (even when steering straight ahead) the pump will want to stall (as when doing a full left or right turn, hitting stops in the gear box), then the belt will slip on the pulley, and you'll get belt squeak. I made this mistake once, and the belt squeaked all day long on a wheeling trip.
     
  12. GadgetPhreak

    GadgetPhreak GOLD Star

    Messages:
    80
    Likes Received:
    65
    Joined:
    Oct 18, 2007
    Location:
    Redmond, WA
    Thanks Downey, great insight.

    It would seem that the way to correct that is a re-position of the pump to a location where more belt wrap could be achieved, or is there a different option that I’m missing..?