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Old 08-14-2008, 09:47 PM
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Power Steering hose question

Something I've being wondering about. What would happen if you use nothing but steel tube for the power steering system, how would that affect operation?

Again, just curious; I heard that doing so with the a/c system lowers the efficiency.

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Old 08-14-2008, 10:05 PM
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The inablility to flex. Needs to be able to flex
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Old 08-14-2008, 10:35 PM
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It has to flex. Fuel lines to the engine flex. Stock engine mounts flex. Stock body mounts flex. Brake lines to the wheel cylinders/calipers flex. Stock radiator hosed flex. Stock AC hoses flex.

In the case of my truck...the whole frame flexes. Oh...that is not the same thing.

Without some flexibility...things start cracking and breaking.
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Old 08-14-2008, 11:36 PM
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Never thought of that.

Good to know.

Been looking at that teflon hose for brakes and figure I could use it for the power steering as well.

Thanks for the info guys!
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Old 08-15-2008, 07:27 AM
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I agree about flex vs. cracking, but I have found out that P/S can even be run with LONG solid lines with no apparent losses in ability to function.

We put a GM 4x4 P/S box on an old big industrial tractor with 5 foot long solid 3/8" lines. The matching GM pump is solid mounted at the front frame driving off the front hyd pump shaft, and we have not had an issue "yet". The lines are so long that flexing really does not seem to be an issue. We've run it for long periods doing excavation projects, and don't see any overheat problems either. I almost expected that, due to the flow going through such long lengths of stock size tubing that was designed for "short" distances.

On a car? I would not do it for any reason.
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