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#41
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Same Problem in my '71 GTO
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#42
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#43
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10-4
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Triple Black 1971 GTO |
#44
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On a power steering gear, you are turning more parts inside and there are more wear areas. The torsion bar pin hole and pin can be worn in addition to the spool valve, valve housing and more. When adjusting the lash on a power steering gear, mark your starting point on the screw and cover. I take multiple test drives to see how it behaves. I would make my initial adjustment no more than 1/4 turn of the screw. Then test drive. If the steering feels twitchy and does not have a good center feel, it is over adjusted. Take half of your adjustment away and test again. If the first adjustment made it better, but not quite enough, adjust another 1/8 turn and drive again. It's a bit of trial and error. In my experience, you should never need to adjust more than 1/2 turn total. Please note this is "back yard" type on the car adjustment. Pontiac and Saginaw steering DO NOT specify adjusting the gear in this manner. As Schukey mentioned, this is adjustment #2 of the steering gear. Both adjustment 1 and 2 done properly are preformed with the steering gear removed and on a work bench. Adjustment 1 is done with the rack gear and sector removed. This is the shaft bearing preload adjustment. You need a beam type inch lb. torque wrench to do this one. Then with the gear assembled, you perform the sector lash adjustment, again with an inch lb. torque wrench. I have had good luck tweaking the sector lash on the car if the steering linkage and all the joints are in excellent condition. If there is wear in the steering parts, than the sector adjustment if often over adjusted just like Shurkey mentioned. Good luck with it. |
The Following User Says Thank You to mgarblik For This Useful Post: | ||
#45
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F-Body here but I also use Borgeson box for the reasons mentioned by 64Speed. Very happy with mine.
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Will Rivera '69 Firebird 400/461, 290+ E D-Ports, HR 230/236, 4l80E, 8.5 Rear, 3.55 gears ‘66 Lemans, 455, KRE D-Ports, TH350, 12 bolt 3.90 gears '69 LeMans Vert, 350, #47 heads: work in progress |
#46
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Keep the box, either have a Tom Lee rebuild it or stash it and buy a brand new, 800 Series, Saginaw with a 14:1 ratio with a 30 pound torson bar. It will snap right back to center just like a fast ratio manual box, but it will be easy to park.
I like a 13" steering wheel with the 14:1 ratio. I use the Grant steering wheels with the holes in the spokes just like the ones from the sixties had. You could use a 13" steering wheel with your stock box and it will speed things up. I jack both front wheels off the ground loosen up the lash lock nut, and rock the wheel back and forth, you should feel a little bit of movement once you get the feel of it try tightening the set screw a 1/4 turn and see if the movemment became closer and tighter. If not stop. leave the set screw alone, lock it all up and get a new box. Here's where I buy all my boxes, they are the best! https://leepowersteering.com/collect...aginaw-gearbox Last edited by 389; 10-27-2022 at 11:06 AM. |
#47
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loose box
I had my stock box and pump (1977 Grand Prix) rebuilt by powersteering.com and have no leaks and tight steering. It was a 2 week turnaround with ground shipping....but I am in MO and they are also.
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