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08-15-2018, 09:42 PM | #1 |
Senior Member
Join Date: Apr 2014
Location: Montpelier, VT
Posts: 223
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Front end shimmy solved
I had a pretty good (bad) shimmy in the front end of the Model A that seemed to come and go depending on travel speed. My passenger said it seemed to be coming from the right front wheel, so when I got back home I jacked up that side and placed a piece of 2x8 against the tire and spun the wheel. There was over 1/4 inch of runout (wobble) in the tire. I put a different tire and rim on the front that had much less runout and took it for a test drive. It was much better, still not perfect, but no more death wobble at certain speeds. I think I'm still going to install the steering damper from Snyders. Moral of the story, try the simple things first.
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08-16-2018, 01:01 AM | #2 |
Senior Member
Join Date: Jul 2011
Location: Redondo Beach, CA
Posts: 5,852
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Re: Front end shimmy solved
A couple of recent discussions for your reading pleasure...
https://www.fordbarn.com/forum/showt...teering+damper https://www.fordbarn.com/forum/showt...teering+damper |
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08-16-2018, 05:59 AM | #3 |
Senior Member
Join Date: May 2010
Location: Largo Florida
Posts: 7,225
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Re: Front end shimmy solved
Its just an opinion, but, a steering damper is a bandaid.
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08-16-2018, 06:19 AM | #4 |
Senior Member
Join Date: Mar 2017
Location: Connecticut Shoreline
Posts: 1,829
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Re: Front end shimmy solved
A properly prepared Model A does not need a steering damper.
If it were my car, I would go over the complete front end. Once everything is right, it will last a long time. Tires, spring, rims, shocks, steering box, front end, wishbone. After 90 years, a little wear here and there in the front end and you have a problem that will just be concealed with the damper. If not properly fixed, your shimmy mostlikely will be back. Last edited by WHN; 08-16-2018 at 07:21 AM. |
08-16-2018, 01:21 PM | #5 |
BANNED
Join Date: Oct 2017
Posts: 128
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Re: Front end shimmy solved
yep
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08-16-2018, 01:36 PM | #6 |
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Join Date: May 2010
Location: Jordan, MN
Posts: 1,411
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Re: Front end shimmy solved
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1/4" wobble contributes to but is not the only cause of your bad shimmy. I agree with those above that suggest a close inspection of the front end and repair/adjust what is needed. I have a "Do it yourself" article on my website that explains how to remove the "wobble" from your wheels. Look for: Wheel Wobble Reduction by Spoke shrinking Click on the link below to get to my website. Good Day! www.durableperformance.net |
08-16-2018, 06:04 PM | #7 |
Senior Member
Join Date: Apr 2014
Location: Montpelier, VT
Posts: 223
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Re: Front end shimmy solved
Dave,
Thanks for the information on wheel straightening! |
08-17-2018, 10:54 AM | #8 |
Senior Member
Join Date: May 2010
Location: Redding Cal
Posts: 1,388
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Re: Front end shimmy solved
Take off your tie rod and drag link and examine your steering balls. My guess is that they are egg/football shaped. This was the case with my death wobble
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