[Healeys] Drive shaft alignment

[Alan Seigrist]

It's pretty simple, if you have the drive shaft in your hand, the front yoke
and rear yoke should be in alignment.  That way the drive shaft will take
the sinusoidal variation in the rotation by moving back and forth.  if they
are 90 degrees out, then the sinusoidal motion in the U-joint gets amplified
and transferred to the axle and you get all kinds of vibration.

Alan

'52 A90
'53 BN1
'59 Jag Mk IX
'64 BJ8


On Fri, Apr 30, 2010 at 8:23 AM, Peter Schauss <rpschauss at gmail.com> wrote:

> Are the yokes at the front and rear of the drive shaft supposed to be in
> line or 90 degrees apart?  What happens if the two ends are not in the
> proper relationship to each other?
>
> Last year I sent my drive shaft out to have the universal joints replaced
> and to be balanced.  When I got it back the front yoke was about 20 degrees
> off from the rear yoke.  Needless to say, I had not bothered to see how it
> was set up before I sent it out.
>
> Thanks,
> Peter Schauss
> 1963 BJ7
> 1980 MGB
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