[s-cars] up a creek without a paddle: timing belt on S6

[Fred Munro]

Hi Rokas;

There are a few other ways to lock the crank, but none as satisfactory or
safe as the crank locking tool.

I used a 12 mm Allen wrench to lock the first 10V engine I did. With the
socket on the bolt, the short leg of the Allen key fit in between the socket
and the pulley and locked on the step in the pulley that engages the crank
lock tool. I set the long leg of the Allen key against a convenient and
solid part of the engine and managed to break the bolt loose. The entire
set-up was so insecure I had to place guards to prevent catching the Allen
key with my face if it should slip. I ordered the crank lock tool right
after that job.

An old standby is to bring No.1 piston to the bottom of the compression
stroke, stuff a bunch of soft cotton rope down the cylinder, and compress
the rope, thereby locking the crank in position. The problem with this "old
standby" is that it works great on North American engines with 60 ft-lb on
the crank bolt but puts a lot of strain on the crank, rod, piston, and head
with 330 ft-lb plus thread locker on the Audi bolt. Another problem is that
on some engines the thread locker is under the bolt head, locking the bolt
to the pulley. The crank lock tool locks the pulley. If you lock the crank
and the pulley turns with the bolt, you may shear the key cast into the
pulley, requiring the purchase of a new pulley.

Personally, I wouldn't touch this job on the 20V engine without the crank
lock.

Good luck!


Fred Munro
'94 S4



-----Original Message-----
From: s-car-list-admin at audifans.com
[mailto:s-car-list-admin at audifans.com]On Behalf Of Rokas Reipa
Sent: October 4, 2003 12:57 AM
To: s-car-list at audifans.com
Subject: [s-cars] up a creek without a paddle: timing belt on S6


Hey all. This weekend was sposed to be timing belt weekend. I have gotten as
far as trying to loosen the crank bolt. Problem is, I do not have the crank
lock tool needed to stop the crank pulley from turning as I loosen the bolt.
I have tried fabricating all sorts of homemade locks with clamps(clamping
the lone hole on the pulley) and various metal bars but nothing seems to be
working. I have used clamps for the same purpose with great success on a 5ks
and a 5kcst. Is a crank lock tool ABSOLUTELY NECESSARY or is there another,
more ingenious way of doing things? My car is in pieces!!! Many thanks,

Rokas
95.5 S6



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