Re: Final drive play

[Huw Powell <audi@mediaone.net>]

Avram G. Dorfman wrote:
> 
> When someone held the drive shaft & front axle flanges, we could turn the
> rear drive flange by hand *easily* about 5mm, and if we really twisted it,
> 15 mm.

excuse me for being a nerd, but how many degrees is that?

> 
> When my brother accellerates after coasting, there is about 1/4 second of
> free engine spin-up before the driveline "catches up" and then there's a big
> clunk, and the car starts to accelerate. This is just our analysis, but we
> believe the slack is in the differential. The trouble is, we don't really
> know how much play there is supposed to be.

yikes.  See, I asked because I noticed my 2wd coupe has a few degrees of
play between the fron (of course) shafts.  Wondering how tight is new,
what is "acceptable" if there is a spec, etc.  I should take a look at
the old tranny that *should* have been in my car anyway.  I'm planning
on changing to an 84 coupe unit anyway, but this would a nice "spec" to
know, even if we make it up.

 of course a Q gives you a few more differentials in which this play can
add up ferociously!

-- 
Huw Powell

http://www.humanspeakers.com/audi/

82 Audi Coupe; 84 4kq; 85 Coupe GT