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Thread: Power steering plumbing problem: FORD pump to 6AN hose

  1. #1
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    Question Power steering plumbing problem: FORD pump to 6AN hose

    Hello all,
    Hope you are all well and happily working on your car.
    I have a 1965 Mustang power steering pump on my roadster with the FFR Mustang II rack. The pressure output fitting of the 1965 Mustang pump is a SAE 3/8 male 45 degree flare. I want to connect that to 6AN braided stainless steel hose to go to a Heidts proproportioning valve because the steering is too light. I cannot find a fitting to go between the 3/8 male 45 degree flare on the pump to 6AN hose.

    I have found only Mustang II rack to GM power steering pump (inverted flare) hose kits. Nothing to go from the Mustang II rack to a FORD pump.

    Has anyone solved this problem?
    Mk4 Complete kit with IRS, IRS brakes, Power Steering, 302 mounts, 302 headers, TKO, 2 Rollbars, Leather seats,
    vintage gauges, polished stainless sidepipes, front and rear sway bars, all cutouts.
    Blueprint Engines 347 stroker; Tremec TKO 600; 3.55 IRS, 17" Bullitt wheels: 9" front 10.5" rear.
    Delivered Nov. 6, 2018. First start Aug. 11, 2019. First Go-Cart Feb. 21, 2020.

  2. #2
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    Use google you'll find a dozen. You said the steering is too light? A Heidts valve is only going to make it lighter still.
    OOPs, that is a misstatement by me. The valve will reduce the pressure, and increase the effort, sorry about that.
    Last edited by rich grsc; 07-07-2023 at 08:07 AM.
    Mrk III, 331 stroker, Borla stack injection, T5, 3:55 IRS, Power steering and brakes. Kleiner body & paint

  3. #3
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    Something like this: https://www.cjponyparts.com/borgeson...1973/p/HW3409/

    This may even preclude the need for a heidts valve: https://www.cvfracing.com/saginaw-fo...ering-fitting/
    MK4, 427LS3, IRS, T56 Magnum, Wilwoods

  4. #4
    FFR MKIII builder/owner
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    I have a fox era pump on mine that has a discharge regulator built in to it. I was able to cut some off the the regulator spring which allows more fluid to bypass back to the reservoir which in turn makes the steering less touchy. Not sure if the older pumps are similar but worth looking into.

  5. #5

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    Quote Originally Posted by rich grsc View Post
    A Heidts valve is only going to make it lighter still
    This is not true. A bypass valve, like the Height unit, can Not increase line pressure. I use a Heights valve on my own car to reduce line pressure for normal street driving. I run the valve full open to use during autocross.

    Frank

  6. #6
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    Also look around the pump for a large hex plug. Wrench size in the 3/4 to 1 inch range. Usually under this plug is a spring pushing against the pressure regulator. If you cut the spring slightly it will reduce the pressure output.
    FFR MkII, 408W, Tremec TKO 500, 2015 IRS, DA QA1s, Forte front bar, APE hardtop.

  7. #7
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    Quote Originally Posted by i.e.427 View Post
    This is not true. A bypass valve, like the Height unit, can Not increase line pressure. I use a Heights valve on my own car to reduce line pressure for normal street driving. I run the valve full open to use during autocross.

    Frank
    You right the valve decreases pressure, not sure what I was thinking. Thanks Frank
    I fixed my post
    Mrk III, 331 stroker, Borla stack injection, T5, 3:55 IRS, Power steering and brakes. Kleiner body & paint

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