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Old 05-18-2013, 07:53 PM   #6
fdryer
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Join Date: Jan 2006
Location: NYC
Posts: 43,173
 

2003 L-Series 3.0L Sedan
Default Re: Steering rack and pinion possible problem.

As I see it, based on some assumptions, rack and pinion units are the same for virtually all cars - a basic cast aluminum housing machined to carry seals, steering rack, pinion gear, etc.. Mounting with nuts and bolts would mean drilled holes to accommodate the bolts to mount to the chassis or engine carriage. Tightening nuts and bolts would mean using special nuts that lock and restrict turning (loosening up). As long as tightening them doesn't allow loosening on its own, you're fine. Periodic checking like when the next oil change occurs or the next time you're under the car is good enough to check for loosening fasteners. The torque for tightening is used to hold the r&p unit in place while giving the best hold for strength without anything moving.

Tighten only enough to stop the bolt or nut from turning with a lot of force (muscle). 35 ft-lbs is medium-to-low torque. Overtightening simply means stretching the bolt and eventually snapping it (gorilla mentality). 100 ft-lbs is tire nut/bolt torque.

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