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Test a steering rack before installation?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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FireFox31
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Test a steering rack before installation?

Post by FireFox31 »

Does anyone have ideas on how to test a steering rack before completing the difficult installation into a car? I have a junkyard rack and would like to replace seals two other racks but would want to test them all before use.

My one idea is to have a hydraulic hose shop make extended input/output hoses by clamping long, new hoses to the cut off ends of the OEM hoses. I could then leave the rack on a bench, run the hoses into the car, power up the system, and turn the rack by hand to see it work. Problem is, the system would not be under load, not overcoming the friction of wheels on pavement. But at least it could get under pressure. What do you think?
FireFox31
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dikidera
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Post by dikidera »

I would fill with fluid, plug one end and use shop air to pump 100 psi which it sees anyway when running.

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Clemens
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Post by Clemens »

Firefox, I like your idea. You won't be able to fake the load situation, but at least having fluid circle in the rack on the bench and turnin it end to end will show if there is any major problem before installing it in the car.
Summer: 1996 855 R
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