Crank tool
From Knowledgebase
The Audi 2084 - Crank Locking tool keeps the crank from turing while you apply Superman torque to loosen the crank bolt on the 1986-1991 Audi 5-cylinder Turbo engine. I got my 2084 from Zelenda. If you can't find a vendor, or don't want to pay for the Audi 2084 tool, you can make one.
Eric Kissell made his crank locking tool from a piece of 2x2 inch square steel tubing about 6-inches long. He cut out a 2 inch by 1-1/2 inch piece from one end.
For the record, many listers have had success using pneumatic and electric impact wrenches to loosen the crank bolt without the tool. Also, see the "Pry Bar Option" below.
Disclaimer: Create and use these tools at your own risk.
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How to make the tool
In a nutshell, all you have to do is cut out a 1-1/2 inch deep piece out of one side of one end of a piece of 2x2 inch square steel tubing.
Use a drill bit to drill the inside corners of the piece to be removed, then use a Sawz-All or jigsaw with a metal cutting blade to cut thesides. If you have to use a hand hacksaw, you may want to use the drill to drill holes across the inside edge of the piece to be removed, and use a metal file to smooth the edge.
Here is what the genuine Audi crank lock tool #2084 looks like:
Here are some shots of the business end of the home-made tool:
And here are some shots with a ruler for scale:
How to use the tool
Use your home-made tool as follows:
- Place the cut end over the crank bolt, and put a pipe wrench over the pipe/tool.
- Insert your crank bolt socket into the open end of the home-made tool.
- Turn your crank bolt socket (with appropriately long breaker bar) slowly, until the pipe wrench catches on something solid to keep it from moving.
- Apply enough pressure to free the crank bolt. The home-made tool should keep the crank pulley (and crank) from turning while you apply pressure to the breaker bar.
Pry Bar Option
In addition to the option of a using an impact wrench, some listers have improvised by using a 13-1/2 inch flat pry bar, with the short end wedged into the pulley, and the long end wedged against a solid body part. It is used as described above.
You can probably find one at your local hardware store. If not, you can order one from Sears.
Credits
Thanks to Eric Kissell for providing the home-made tool photos.


