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Old 10-29-2019, 07:26 PM   #1
rfitzpatrick
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Default Steering Wobble

New Spindles, Shocks, Tires (balanced), F-150 Steering, Brakes -- and it just started with this wobble -- so what did I forget, and yes, I rechecked my front wheel bearing - again.
What am I over-looking PLZ -- what a disappointment this is. It's a '31 PicUp
Tires about 12 months, rest of work last 4 months


Thanks Guys
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Old 10-29-2019, 07:36 PM   #2
dbaldwi3
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Default Re: Steering Wobble

Did you look at front radius ball? I was told this can cause wobble.
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Old 10-29-2019, 08:07 PM   #3
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Default Re: Steering Wobble

Did you check your toe in and caster. Toe in should be about 1/16 inch and caster I believe about 5 degrees.
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Old 10-29-2019, 08:10 PM   #4
Patrick L.
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Default Re: Steering Wobble

There is something loose. It can be anything between the wheel bearings back thru to the steering box adjustment. Also the toe-in should be 1/16".
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Old 10-30-2019, 08:43 AM   #5
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Default Re: Steering Wobble

OK, took the nose tires off and compared them -- drivers has a very slight wear on the out-most tread --would this be "toe-in"? Also I said spindles what I meant was King-Pins. Does this change your opnion? I do have Club-Support, but sometimes I'd like to figure things out myself?
Thanks Guys
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Old 10-30-2019, 09:36 AM   #6
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Default Re: Steering Wobble

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Long story short. In my case after screwing with everything imaginable check your spring perch nuts. It was a last resort for me. Drivers side took two full turns and pass. side 3/4 of a turn. Problem solved. Patrick L. nailed it.
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Old 10-30-2019, 10:43 AM   #7
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Default Re: Steering Wobble

Quote:
Originally Posted by Patrick L. View Post
There is something loose. It can be anything between the wheel bearings back thru to the steering box adjustment. Also the toe-in should be 1/16".
Ditto
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Old 10-30-2019, 02:58 PM   #8
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Default Re: Steering Wobble

Kinda thought you meant king pins.

The tire wear can be camber [ excessive camber is normal for old cars] or improper toe setting. Old cars tend to have a lot of caster too, but, thats not your problem.

Look for something loose first, there is a lot to look at.
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Old 10-30-2019, 03:29 PM   #9
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Default Re: Steering Wobble

What kind/brand/size tires?? Air pressure?? Tie rod ends good?? Steering box tight to the frame?? Pitman arm tight to the steering box?? Balls on the spindles round?? Toe in??
Paul in CT
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Old 10-30-2019, 04:26 PM   #10
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Default Re: Steering Wobble

Fitzpatrick, my roadster also had this problem.

It gots better when I increased the tire pressure to >2.6 bar. But that was not good enough.
I've found the real problem: The pan that is sitting on the center ball cup for the front axle triangle (under the car approximately in the middle, don't know the exakt name; see picture) had too much play.
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Old 10-30-2019, 05:37 PM   #11
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Default Re: Steering Wobble

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Originally Posted by Werner View Post
Fitzpatrick, my roadster also had this problem.

It gots better when I increased the tire pressure to >2.6 bar. But that was not good enough.
I've found the real problem: The pan that is sitting on the center ball cup for the front axle triangle (under the car approximately in the middle, don't know the exakt name; see picture) had too much play.
Radius ball
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Old 10-30-2019, 05:44 PM   #12
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Default Re: Steering Wobble

Thanks for this language hint!
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Old 10-30-2019, 06:28 PM   #13
rfitzpatrick
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Default Re: Steering Wobble

Quote:
Originally Posted by Werner View Post
Fitzpatrick, my roadster also had this problem.

It gots better when I increased the tire pressure to >2.6 bar. But that was not good enough.
I've found the real problem: The pan that is sitting on the center ball cup for the front axle triangle (under the car approximately in the middle, don't know the exakt name; see picture) had too much play.





I have hip-arthritis -- getting under the PicUp requires two days out from under the Piczup to recover--right now, am checking the spring pearches per a previous post. Found nothing Passengners side today -- Thanks
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Old 11-07-2019, 05:05 PM   #14
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Default Re: Steering Wobble

Steering Wobble Update: After contacting Mel Gross about my steering box -- he e-mailed me the adjustment instructions. Our club mechanic and I were able to correct my problem in about ten minutes, fifteen if you include clean-up time. Also didn't realize how loose my steering had become -- there's a lot of confidence driving my PicUp when my steering and brakes are in top shape
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Old 11-07-2019, 05:46 PM   #15
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Default Re: Steering Wobble

Quote:
Originally Posted by rfitzpatrick View Post
Steering Wobble Update: After contacting Mel Gross about my steering box -- he e-mailed me the adjustment instructions. Our club mechanic and I were able to correct my problem in about ten minutes, fifteen if you include clean-up time. Also didn't realize how loose my steering had become -- there's a lot of confidence driving my PicUp when my steering and brakes are in top shape
HOOORAY!. Randy is a saint. My issues drove me crazy and after going through 95% of everything known to man.................Spring perch nuts. Glad you got it sorted out!!
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Old 11-08-2019, 07:51 AM   #16
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Default Re: Steering Wobble

Here's something that would help IF you had the car/truck on jack stands.
https://m.youtube.com/watch?v=qcVVcIj879Y




Quote:
Originally Posted by rfitzpatrick View Post
I have hip-arthritis -- getting under the PicUp requires two days out from under the Piczup to recover--right now, am checking the spring pearches per a previous post. Found nothing Passengners side today -- Thanks
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