Need some advice. I have owned (3) Audi A6s. Did the timing belt change on the 2.8L last year, without a cam lock tool, just marked the cam gears with the engine at TDC on the crank. Everything worked great, car ran awesome before being totaled in an accident. Now I have a 4.2L with 107,000 and it needs a timing belt change.

Followed the same process as the 2.8L, with the covers off the cam and crank arrangement is similar. Marked the cam gears with the crank at TDC, removed the old timing belt. While taking the belt off, the right gear, drivers side, jumped clockwise about 20 degrees. I put it back in postition with a wrench, and realized that it was close to jumping either way. I had a second person hold the cam gear in place with a wrench while I installed the new belt and set the tensioner. Everything is lined up. I pulled the engine through two rotations and everything lines up again. It looks good.

Question, could any damage have occurred when the right cam jumped clockwide 20 degrees? Your opinions and advice would be appreciated.
Thanks

 

Nothing happened. AS long as you did not unbolt the cam gears from the cams, you are good to go!

Bob

 

Bob, thanks for the feedback. I called a couple of other mechanics that work on these cars and they agree. I'll keep my fingers crossed. Hopefully I am not posting a lessons learned page tomorrow.