 Bushing Problems?, Or Something Else... |
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| Mathman |
 Feb 29 2016, 05:48 PM
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#1
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Newbie  Group: Members Posts: 25 Joined: 10-May 14 From: Kansas Member No.: 17,330 Region Association: None  |
Hey all, I got to take my car out for a good drive today, and it reminded me of something that I need to work on. Doesn't it always? Anyway, I've uploaded a video to help describe the problem, but I will explain verbally as well.
As I'm driving down the road, the steering wheel will begin to vibrate intensely. All of a sudden, the vibrating will completely stop. The vibration always comes back within seconds, and it tends to alternate about every 10-15 seconds. It does not seem to be speed dependent. It does not seem to have anything to do with the turn of the wheels. My only two guesses are the steering wheel bushing or something in the suspension bushings. Any suggestions? The vibration starts around :07, stops at :20, and comes back at :31. https://www.youtube.com/watch?v=pAnkiOGYXX0 https://www.youtube.com/watch?v=pAnkiOGYXX0 |
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| Elliot Cannon |
Mar 1 2016, 12:40 PM
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#2
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None 
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Sounds like loose front wheel bearings. I would try adjusting the bearings before anything else. It's relatively easy to do. To check to see if they are loose, jack up a front wheel. Grab the wheel at the 12 and 6 o'clock position and see if you can wiggle the wheel back and forth. If you feel the wheel move, the bearings need adjusted.
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| McMark |
Mar 1 2016, 01:57 PM
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#3
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914 Freak! Group: Retired Admin Posts: 20,179 Joined: 13-March 03 From: Grand Rapids, MI Member No.: 419 Region Association: None |
(IMG:style_emoticons/default/agree.gif)
That and wheel/tire balance. |
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| Mathman |
Mar 1 2016, 02:27 PM
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#4
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Newbie Group: Members Posts: 25 Joined: 10-May 14 From: Kansas Member No.: 17,330 Region Association: None |
I just replaced the front wheel bearings last spring. I'll have the balance checked again, but I did that when I replaced the bearings. If it's balance, how would it get better every few seconds?
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| r_towle |
Mar 1 2016, 03:11 PM
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#5
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Custom Member Group: Members Posts: 24,585 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States
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Check to see if the bearing are right
I had to tighten one side on my 911 4 times till it stayed put |
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| Mark Henry |
Mar 1 2016, 03:28 PM
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#6
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that's what I do! Group: Members Posts: 20,065 Joined: 27-December 02 From: Port Hope, Ontario Member No.: 26 Region Association: Canada |
QUOTE(McMark @ Mar 1 2016, 02:57 PM)  (IMG:style_emoticons/default/agree.gif) Did you toss a wheel weight? |
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| Elliot Cannon |
Mar 1 2016, 03:31 PM
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#7
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914 Guru Group: Retired Members Posts: 8,487 Joined: 29-December 06 From: Paso Robles Ca. (Central coast) Member No.: 7,407 Region Association: None
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QUOTE(Mathman @ Mar 1 2016, 12:27 PM) I just replaced the front wheel bearings last spring. I'll have the balance checked again, but I did that when I replaced the bearings. If it's balance, how would it get better every few seconds? It looks more like a wheel bearing problem than an balance problem. Check the wheel for play after lifting it off the ground. The easiest and cheapest thing to do should always be tried first. Check and adjust the wheel bearings first. IMHO. There should be an adjustment procedure in the Haynes manual if you have one. And you should have one if your going to work on this car yourself. (IMG:style_emoticons/default/biggrin.gif) Cheers, Elliot |
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| stugray |
Mar 2 2016, 11:20 AM
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#8
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Advanced Member Group: Members Posts: 3,824 Joined: 17-September 09 From: Longmont, CO Member No.: 10,819 Region Association: None |
As mentioned above: jack the front up and with your hands at 12 & 6 oclock, try to wiggle the wheel.
With the wheel ON, there should be a barely perceptible amount of "wiggle". With the wheel off and doing the same experiment with your hands on the rotor, there should be NO perceptible movement. That is how I verify mine. With the extra torque available with the wheel on, you should JUST be able to feel the wiggle. |
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