[Roadsters] re intermitant shaking

[Paul Bauman]

Tim:

A u-joint problem can appear suddenly, without anything in particular
causing it except for the u-joint going bad.

There is one thing you can try. Get the car out on the street and start
driving forward, stop and back up. If you hear a metallic pop like a
hammer hitting a pipe when you start to move, it's likely the u-joints.
Have someone stand next to the car when you do this. It can make
detecting the noise easier as it is sometimes not terribly loud.

If you don't hear any noise, it still can't hurt to take the driveshaft
to a driveline shop and have them look at it. I had mine done a few
months ago for less then 100 bucks.


Paul





On Tue, 2009-06-02 at 03:53 -0700, Tim wrote:
> Since this is a fairly new issue and the car has not been worked on by anyone else in over two years, I would hope that my drive shaft wasn't bent and also don't see how it could happen. 
> 
> As far as a u-joint, is this something that can just happen? Or does there need to be some sort of trauma for there to be u-joint issues? 
> 
> Same with the drive shaft, would there have to have been some sort of trauma under the car?
> 
> Tim
> 
> 
> ---- Vince Strazzabosco <vstrazzabosco at yahoo.com> wrote: 
> 
> =============
> For what it's worth, in my BMW 2002 I had a vibration between 25 and 45 mph
> that went away with speed.  I checked all the wheels on a friend's balancer
> and they were fine.  I removed the driveshaft, and found that the rear u-joint
> was binding on one side.  Picture your wrist moving smoothly back and
> forth....now picture it meeting resistance in the center, that's what was
> happening.
> 
> Replaced the driveshaft, and all vibes are gone.
> 
> vince
> 
> --- On
> Mon, 6/1/09, Larry Braddock <larrybraddock at ca.rr.com> wrote:
> 
> > From: Larry
> Braddock <larrybraddock at ca.rr.com>
> > Subject: [Roadsters] re intermitant
> shaking
> > To: datsun-roadsters at autox.team.net
> > Date: Monday, June 1, 2009,
> 3:56 PM
> > If new tires don't fix it, itcould be
> > a bent rim.
> > 
> > Larry
> >
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