2 tooth, 31 box and mis-centered steering wheel

No slop right to left and 5-6" left to right.
Pitman arm and sector shaft not moving when moving steering wheel.
I'm at a loss on how to be explain the slop, sorry.
Still confused about centering sector and worm teeth. Thought mesh of the two gears was with the eccenteric adjusting stud on the upper right of the sector cover?
Anyway, thanks. Tomorrow I'm going to try everything over again. Stay tuned!
 
Get the big paperbook version,not the pretty hardbound book.You can lay the big one down on the runningboard,hold it open with a couple of wrenches,and read as you go.6-1/2 inches is a lot of play.I'm not sure what you mean by play to the right,and not to the left.If you mean when you turn the wheel to the left,say one turn,and then have no play,then turn to the right of center one turn,and have a lot of play,then the adjustments are way out.Pay no attention to the position of the spokes,that means nothing.It is not a modern car,they now centralize the wheel itself by running the separate right and left tie rods in and out equally until the wheel is centered.The A doesn't do that.
 
I'm still lost like Keith on your play
Sometimes the box need to be rebuilt with new parts as the adjustments can only do so much
 
The object of the Service bulletins adjustment is to minimize pitman arm motion at center and "equalize" the free motion at the ends of travel. If done right you should have ZERO pitman motion with the worm at middle point. (you can ALMOST feel the sector starting to gaul the worm at this point.)

The service bulletins addresses (first step) "centering" the action of the sector in relation to the worm. This done by the eccentric with locking bolt. It goes on (second step) to describe "testing" the pitman free motion at the ends of travel - and adjusting the riveted eccentric (with slot) to equalize this.

The problem with this second step is an adjustment here "screws up" your first step. Most people describe having to do repeated "readjustments" working back and forth to get both settings "optimal" - and then hope everything stays the same when the housing bolts are snugged up and compresses the gasket slightly.

This whole chasing your tail iterative technique is best done with the steering gear OUT of the car. LIKE the pictures in the Service Bulletins.

And while it is out, you can check the sector shaft/sector bushings for wear, which can give you a "free motion" of the steering wheel without any apparent motion of the pitman arm. Many take this opportunity to replace these bushings/shaft with new components, or upgrade to torrington needle bearings and attempt to save their old sector shaft. Both rebuild techniques have their advantages and disadvantages.

Gosh. Its too bad you're not making it work. But as others have said, read the Service Bulletins. Victor Page's The Ford Model A Car is a quick overview of the two tooth adjustment. Also some good discussion (and those pictures) at Bob Carabbio's instruction for installation of torrington bearings. http://www.abarnyard.com/workshop/steering.htm

steeradj.jpg


Joe K
 
I repaired automotive suspensions for many years, and the first thing is to center your front wheels. Then turn your wheel lock to lock and count the turns on each side. They should be within an 1/8 of a turn to being equal. If not, the spindle could be bent on one side, the pitman arm could be bent, or the steering shaft itself could be twisted. Most times I had to change the box out because the shaft splines would twist in the box. This would ''preload'' the direction of steering into the steering, causing the steering wheel to be off in that direction. A lot of tie-rod adjustment could make up for it, but you would lose the full turning radius on one side. It would turn sharper on one side than the other. Another box was quickest and cheapest.
 
With the wheels straight ahead, watch the end of the sector shaft while you or a friend rocks the steering wheel back and forth to see if the shaft moves up and down or otherwise flops around. This will tell you if the SS and/or the bushings are worn.
 
My results of yesterday efforts---
In garage::::Tires off ground, draglink disconnected at pitman and visually tires straight ahead (didn't measure toe). Only slight tad of play in sector/worm mesh with fore and aft movement of pitman. Steering arm, kingpins, draglink,tierod have no looseness. Steering wheel has measured 1-1/2" slop each way, right and left slop from straightened tires.
When rocking tires at top and bottom (12 and 6 o'clock), very slight movement implying to me maybe improper torque (unsure what is correct number ) on wheel bearing. Forgot to spin tires to check if any brake drag.

Test drive::::now wondering about my driving technique....going straight I can physically center the steering wheel ( I remember wheel orientation was suggested as not important but feel better centered like newer cars) and have 1-1/2 " slop each to right and left (3" total) (I guess my original 5-6" slop was visual mental mistake😢) before affecting tire direction. In this straight ahead, centered steering wheel, a slight drift to right occurs possibly due to crowned road or tire with lowered pressure( misplaced 3 air pressure Gage's, so need to buy but "look" even😀. Found level parking area and noticed very little drift to right, Although I favor holding wheel to left to stop drift. But that and the 3" total slop still bother me. Shud it???
Thanks, Rip
 
"But that and the 3" total slop still bother me. Shud it???
Thanks, Rip"
end quote



Yep, the 3" slop should. 3" isn't too bad, but, 1-1.5" is better. Once again, try adjusting it correctly.
 
My money is on the sector bushings. Go sector bushings.

And maybe a bunch of less work on the remainder of the steering.

Joe K
 
Your box is way out of adjustment. With the pitman arm disconnected from the tie rod place the steering shaft exactly in the middle (rotate the wheel count the turns and put it in middle of travel). Now rotate the Pitman arm back and forth with your hand. There should be no rotation just a slight click sound. If the pitman rotates your box needs adjustment. Adjust to the obtain a slight click in the rotation of the pitman arm. Thus takes 2 people in the car to do. You should end up with 1 to 1 1/2 inches of steering wheel play max. If you can't adjust it it's time for a rebuild. Only use the service bulletins to adjust the box. You should never have to centralize the worm gear unless you replace the worm or someone played with the adjustment.
 
When I purchased my A, it would not return to straight ahead after turning, also had to much play. I was 16 so not much experience, I removed the column, disassembled, cleaned followed Fords service bulletins to the letter! After reinstalling about an inch of play and it would return to center after turning! If a dumb kid could follow Fords service bulletins and fix his A so can you! Fords service bulletins are a must to have and following the step by step procedure you will fix your steering problem!
The reason I under took this repair was, I got embarrassed from getting stuck on ice from not being able to turn back fast enough! I put it in gear, got out and pushed it off the curb, boy I did a lot of pushing from battery going dead and such! Young, dumb, and strong :-)
 
"No slop right to left and 5-6" left to right."

This is the part that is confusing people. Slop is measured with the car at rest moving the steering wheel from side to side. Your description sounds like you are measuring slop while driving with the car pulling to the left while you are compensating by steering to the right. (as if the front and rear axles are not parallel - not saying it is so)


"Pitman arm and sector shaft not moving when moving steering wheel."

This sounds like the car is at rest and you are demonstrating slop in the steering.

I like to replace bushings, gasket, sector housing and sector shaft while box is in the car. Disconnect battery, remove starter, remove clamp holding column to dash, remove box from chassis and rotate toward passenger side and replace parts. The bushings take the most wear from sand and dirt because they are exposed behind pitman arm.

If you want to remove box and column, disconnect wires and remove sector housing and shaft first, then it will pass between the pedals and out. remove floor boards maybe.

Refill it with John Deer Corn Grease when done.
 
After "have no looseness" I shud have added"with draglink connected and tires still off ground".

Don't have a clue what is "&#128546 n blue face". Sorry.
 
Rip said:
My results of yesterday efforts---
In garage::::Tires off ground, draglink disconnected at pitman and visually tires straight ahead (didn't measure toe). Only slight tad of play in sector/worm mesh with fore and aft movement of pitman. Steering arm, kingpins, draglink,tierod have no looseness. Steering wheel has measured 1-1/2" slop each way, right and left slop from straightened tires.
When rocking tires at top and bottom (12 and 6 o'clock), very slight movement implying to me maybe improper torque (unsure what is correct number ) on wheel bearing. Forgot to spin tires to check if any brake drag.

Test drive::::now wondering about my driving technique....going straight I can physically center the steering wheel ( I remember wheel orientation was suggested as not important but feel better centered like newer cars) and have 1-1/2 " slop each to right and left (3" total) (I guess my original 5-6" slop was visual mental mistake��) before affecting tire direction. In this straight ahead, centered steering wheel, a slight drift to right occurs possibly due to crowned road or tire with lowered pressure( misplaced 3 air pressure Gage's, so need to buy but "look" even��. Found level parking area and noticed very little drift to right, Although I favor holding wheel to left to stop drift. But that and the 3" total slop still bother me. Shud it???
Thanks, Rip
Click to expand...


First step before doing any road testing or front end diagnostics is to air the tires. Yes they may look even but maybe they are even with 10 lbs of air in them..


Maybe it's king pin or a loose backing plate did you look and see what is rocking when you shake 6-12?

Don't measure toe in the air and also Ck for excessive movement with the wheels loaded on the ground as well

Maybe you can add your location to your avatar, this will help any locals to find and help you.

I wouldn't doubt it if your box needs a rebuild.. Adjustments will only work properly when the internal parts are in good shape
 
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Is steering wheel position REALLY that important? IF, you're that worried, jist put a RED tape on the top, like NASCAR drivers, so you know whin you're going STRAIGHT ahead.
Bill Practical
 
With front wheels off the ground the slop will not be present because there is no force on the parts you are inspecting.

With the wheels on the ground have someone move the steering wheel left and right as if being in the slop zone. At the same time look look at the all steering parts under the car from behind the left front wheel. You should be able to see the pitman arm clearly and also the drag link, tierod and king pins.

As your helper moves the steering wheel you will be able to notice which parts are causing the problem. Look closely at where the pitman arm goes through the chassis for movement. Any slight movement there could indicate a loose pitman arm bolt, loose steering box bolts (maybe tighten those bolts for good luck) or worn sector shaft bushings. Movement in draglink ends or tierod ends should be easier to notice. Your helper should be moving the steering wheel left and right steadily.
 
With front wheels off the ground the slop will not be present because there is no force on the parts you are inspecting.

With the wheels on the ground have someone move the steering wheel left and right as if being in the slop zone. At the same time look at the all steering parts under the car from behind the left front wheel. You should be able to see the pitman arm clearly and also the drag link, tierod and king pins.

As your helper moves the steering wheel you will be able to notice which parts are causing the problem. Look closely at where the pitman arm goes through the chassis for movement. Any slight movement there could indicate a loose pitman arm bolt, loose steering box bolts (maybe tighten those bolts for good luck) or worn sector shaft bushings. Movement in draglink ends or tie rod ends should be easier to notice. Your helper should be moving the steering wheel left and right steadily.

Have you tried adjusting the steering box? The position of the steering wheel might have been changed if someone removed and replaced the pitman arm incorectly. I know some people say adjusting the tie rod will not affect the position of the steering wheel, but that is not true. By taking one tie rod end off completely and then moving the tie rod in or out of the attached end an adjustment can be made. Just be sure you have enough threads left on both sides of the tie rod when you put it back together.

Set the steering wheel where you want it, remove one side of tie rod end (passenger side), move wheel still attached to tie rod (driver side) to straight ahead position and put the tie rod end back on and adjust toe in again without moving driver side wheel. Make sure you have enough threads left on both ends. Will be almost perfect or do it again for perfect!
 
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