4kq Shudder

[Huw Powell]

>     I have an 85 4kq that has progressively been developing a mystery
> "shudder".  Each morning when I begin my 60mi commute to school, the car
> will ride down the road nicely.  After about 15-20mi though, I'll start
> to feel a slight shake...  usually between 60 and 80MPH.  Sometimes, it
> appears to be coming from the front end (in the steering wheel) and
> other times it feels like it's coming from the rear of the car (in the
> seat).  Occasionally, the shake will go away and then come back again a
> few miles down the road.

> I personally balanced all 4 wheels at a friend's shop (new pirelli
> p4000's)

> :-)!  While balancing the wheels, I noticed that 1-2 of the wheels had a
> slight wobble, but I think that it's negligible.

and you balanced out the wobble, right, with the wheel mounted on the
balancer dead straight?

What you describe could be due to slight out of balance in two or more
wheels, adding to or cancelling each other depending on relative wheel
position (which changes with turns).

The wheel/tire combos could also be slightly out of round (but balanced)
if those "wobbles" are bad enough, and those are adding or cancelling as
the wheels change relative rotational position.

--
Huw Powell

http://www.humanspeakers.com/

http://www.humanthoughts.org/