timing belt questions

[Richard J Lebens <rick-l@rocketmail.com>]

It's time to change the timing belt in my 91 90 Quattro 20V.  Looks
kind of complicated and I could use some help and the search engine is
off limits on the archives.

As an aside I've heard some people on the 20V-list call their cars a
90 Quattro Sport.  Does this refer to the sport/handling package that
included speedlines etc?

1. I have the Bentley and am planning to buy the 2084 and 2079 tools
from Zelenda.  Is there a better source?

2. I recall the 2079 torque adapter discussions.  I think the Bentley
says 258 ft lbs.  to the adapter.  How long is the adapter and what is
the direct torque I should apply to the bolt?  Is this an acceptable
way to do this?  How has everyone done this?  This is really fishing
for a do I need this tool.  Can I borrow a ¾ inch drive torque wrench
and apply this 500 - 600 ft lbs. torque to the bolt?  What size is the
bolt?  The Bentley doesn't say to buy a new bolt.  Is this correct? 
What do I apply to the bolt on reinstallation?

3. I plan to remove the grill and bumper to access the belt.  Are
there any tricks here?  What is that heat exchanger behind the left
side of the grill in front of the timing belt cover?  Does it swing
out of the way?

4. What about the water pump?  If you don't plan to replace it do you
have to move it?  Does this compromise any seals-are there any o-rings
I have to replace?

5. I wasn't planning on removing the idler pulley, is there a reason to?



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