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1941 Steering box adjustment? #1334172 Mon Nov 18 2019 03:53 AM
Joined: Jul 2005
Posts: 628
6
641Workmaster Offline OP
Shop Shark
Need some advice on setting up the steering box on my 1941 3600. Currently have about 3/4 rotation of free play in steering wheel. More importantly I can't hardly steer left but plenty of wheel to the right until it hits the "locks".

Back story is the steering shaft broke above the gear box. I took the steering box along with the shaft out so I could weld the shaft back together. When I put it all back the wheels were straight and I found "center" with the steering wheel and then set the steering arm on the splined sector shaft. There is one large tooth on the splines so you can't just put the arm anywhere which seems to make adjustments a problem. I've tried setting it up a couple times thinking I missed something obvious but the tires only turn about 10d to the left. I've read the following which was helpful.

Originally Posted by Joe H
There are two adjustments to the steering box, one is bearing preload, the other gearmesh. You need the linkage unhooked or wheels off the ground for these adjustments.

Start by setting the bearing preload. This is at the bottom of the steering shaft, on the out side of the box. First loosen the big locking ring using a dull screwdriver or like tool, its a counterclockwise rotation. Next screw the inner bearing cap into the box, clockwise till you feel it hit the bottom, rotate the wheel some to seat the bearings then back off just a touch, reset the lock ring. You shouldn't have up or down movement on the shaft or wheel. To check, get in the cab and pull up on the wheel, if its loose, go back and reset the bearings again.

Next setting is the gear mesh, this is the one you feel when driving, the rotational play in the wheel. On the side of the gear box closest to the engine, you will find a lock nut and slotted set screw. This adjust the sector shaft and worm gear. Start by moving the wheel to extreme right or left (I do this because the gears are in better shape out on the ends where they don't get as much use), then loosen the lock nut counterclockwise, and screw the inner set screw in. You should feel it bottom out. Leave it at that point and leave the lock nut loose, rotate the steering wheel across the center and to the opposite side. You will have to play with this a little till you get it right, if its to tight it won't return to center after a turn, to loose and you have the same problem you started with. I try to get about 1" to 1.5" of movement at the steering wheel, you said you had 3/4 turn or more!

With that much play, you might want to pull the box and check for damage, the sector shaft gears can and do wear out, the worm gears seem to be tougher and last longer. The bushings wear out to. All this wear can lead to the amount of play you describe. The ball and sockets of the draglink and tierods can and do wear.

Good luck and keep us posted on your progress, Joe.


I'm thinking there must be a special way to set the shaft or worm gear through the sector gear to make it all centered straight ahead. I have not adjusted the sector screw because my exhaust is in the way but I don't think that would do much. My research has not found a clear explanation of setting up the box. Any information appreciated.

Thanks


1941 G506
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1946 3800
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1946 3600
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1924 Ford Model T Fordor
Re: 1941 Steering box adjustment? [Re: 641Workmaster] #1334176 Mon Nov 18 2019 04:25 AM
Joined: May 2015
Posts: 1,580
K
klhansen Offline
Shop Shark
You'll need to remove the sector gear and center the steering wheel and gear, then put the sector gear back in place. You likely reassembled it one or more teeth off.


Kevin
First car '29 Ford Special Coupe
#2 - '29 Ford pickup restored from the ground up.
Newest Project - 51 Chevy 3100 work truck. Photos
Re: 1941 Steering box adjustment? [Re: 641Workmaster] #1334274 Mon Nov 18 2019 11:18 PM
Joined: Jul 2005
Posts: 628
6
641Workmaster Offline OP
Shop Shark
Thanks, I've had a feeling it would be taking that out. Hopefully not a big deal. Will be a another winter project along with a starter project!


1941 G506
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1946 3800
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1946 3600
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1924 Ford Model T Fordor

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