Re: Vibration

Rich Atherton (gumby(at)connectexpress.com)
Fri, 29 May 1998 12:33:28 -0700


The vibration you described sounds like wheel hop. You have it floored, going up an incline. Since the Car got smack side-ways on the rear axle, you have borken the right rear shock or shock mount, allowing the wheel to hop with out any dampening. This vibration whould have gone away as soon as you let up on the gas. If the wheel was out of ballance, you may have experienced some aditional vibration at higher speeds on you whay home. This again would be due to a simple problem exagerated by the lack of dampening on that wheel due to the broken shock or mount....

This is pretty easy to spot if it's broken..

Rich

-----Original Message----- From: Jay Laifman <Jay_Laifman(at)countrywide.com> To: alpines(at)autox.team.net <alpines(at)autox.team.net> Date: Friday, May 29, 1998 8:25 AM Subject: Vibration

>
>
>
>I drove my Alpine to work yesterday to take it to a local body shop for a
>second opinion. He said it was no problem to fix it and explained how he
>would weld tabs along the body and use his frame machine to pull everything
>out. I mentioned this method to Rick and he said that this is not a good
>way to fix it. He said you really have to cut off the outside damaged
>layer, straighten everything underneath, then weld the outside layer - a
>new one or straightened old one back on. I have seen mention that the
>lower rocker panels contain the primary strength of the car. So, this
>makes sense.
>
>But, now I am worried about something else. When I left work yesterday,
>while I was in 1st gear and moving up the parking structure, I floored it
>(venting a little frustration, I guess). The car took off, but vibrated
>pretty harshly. It seemed to be coming from the entire rear end - that is,
>like it was hopping on the pavement. Not violently or slowly. But firmly
>and quickly - like two thumps per second. This never used to happen. The
>one thing I should add about the accident is that the car hit me directly
>on the right side, and the right rear knock off did have markings on it as
>though it got hit too. Is it possible that the rear end is just not
>sitting on the springs right anymore? Or, could it be the mounting spots
>for the springs themselves are damaged? Or could it just be a problem with
>the wheel? I guess no one will know from this and I just need to pull it
>all apart and inspect it - if I can find anything.
>
>Jay
>