SAE steering spool short O-ring life.

Discussion in 'Manton Push Rods Top Alcohol Tech Questions' started by Kramer Metal Fab Inc., Aug 10, 2017.

  1. Kramer Metal Fab Inc.

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    Any one using an SAE steering spool and having o-rings wear out and leak frequently?

    I have not logged the # of runs after rebuild but I have had leaks at least two maybe three times in three years and only put 15-20 passes on the car a year.

    The used o-rings look fine, they are not chunked out or torn that I can see. I use silicone oring grease on assembly and I am very careful on the installation not to damage them.

    Maybe it is normal and I need to replace them on a 8-10 run schedule.

    B&J trans 400 PSI regulator. Maybe they just flatten out and loose tension pretty quickly. I am using the Buna N o-rings recommended by SAE. I think they are 70 durometer. I use the 90 durometer in the shifter buttons.
     
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  2. Bob Meyer

    Bob Meyer Comp Eliminator

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    Keep in mind that this is not the intended purpose of an o-ring. They are not designed to turn! There are other ways, I've done most, but gave up on that deal 25 years ago as too risky even with Lenco 150 psi.
     
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  3. Kramer Metal Fab Inc.

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    OK thanks Bob so what are you guys using for lines.? the good quality flexible push in type lines and let them wrap around the steering shaft or? I went this way to get away from this but I am loosing confidence in the spool.
     
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