Re: various 4000q questions

[paul.heneghan@bbc.co.uk (Paul Heneghan)]

From: "PAT MARTIN" <MARDKINS@msn.com>

>I have a few questions about my 4k.
>
>1:  How do I remove the plug on the top of the rear diff and what tool do I 

>use.  I have not really taken a good look yet so maybe it isn't that hard.

Standard hex key (17mm I think)

>Do I fill the rear diff all the way up?

Yes

>2: Just to confirm.  I know that you can fill the center diff by filling 
the
>transmission fill but how long do I wait to refill the front again.  Do I
>tilt the car to make it run faster into the center diff.

I filled mine fairly slowly (half an hour or so) with the car tilted.  I 
then drove it for a week and topped it up with the car level.  It took about 
another half pint.

>How much should this
>tranny take for sure with center diff.  Is it the 4.6 pts as the Bentley 
says.

I didn't measure it exactly (I spilled a bit until I worked out a 
spill-proof way of doing it), but the Bentley manual is normally fairly 
accurate.

>3:  Where is the reverse switch located.

Can't remember.  Don't confuse it with the 5th gear switch used for the 
change up indicator.

>4:  My linkage is very sloppy.  I can see where it has play but how do I 
get
>there to either adjust or replace the assembly.  I can see slop in the 
shift
>lever on transmission and ball socket.  Anyone have experience with these
>little buggers.

I had a LOT of wear in mine - so much that when the car got hot, I couldn't 
engage reverse or fifth.  It turned out to be all due to the rivet that 
holds the stainless steel ball onto the link arm from the transmission.  I 
bought another of these arms with ball attached for about GBP30 and 
everything worked fine (the replacement only took a few minutes - the 
hardest part was popping the ball and socket and reinserting afterwards).

Paul
paul.heneghan@bbc.co.uk
1984 Audi 80 quattro
1989 Audi 100 Avant