Cam timing tool

[VanDahl]

Can someone explain why there are two sides on the camshaft locking device.
I know that one(side A) is for checking and (B) for adjusting, but why the difference?

[bsinclair]

Why use the tool ? Just stick a degree wheel on it . The factory tool sets the cams fairly conservative. Most engine builders would not set them where bmw has them at. They are quite retarded and need to be advanced to gain hp.

[gixerconvert]

B is to compensate for timing chain wear.I believe it is reset at about 16000 miles.
A cam swing/dyno tune is obviously preferable.

[VanDahl]

Can you be more specific.. To advance them both? Same amount?

[bsinclair]

Originally Posted by VanDahl

Can you be more specific.. To advance them both? Same amount?

Unless I'm building the motor I won't give out cam numbers.

[San Jose BMW]

For the average person, the factory tool is easy to use and will get the timing to factoy specifications, which is going to be the best.

Believe me, I have been all over with timing and the differences are very small, and the possibilites for error very large...

Chris