M54 Timing Tool Kit: https://amzn.to/2OdEfKI

I began my rebuild when I did a compression test and noticed I had poor compression in cylinders 2-6 (about 142 psi, the bottom of the service limit). Cylinder 1 head 160 psi. A leakdown test showed leakage into each adjacent cylinder. Of course my engine also had the oil consumption problem (1 quart every 1000 miles) that every M54 engine has, which is caused by the oil rings which wear down prematurely (the M52TU used different oil rings which did not have this problem). There was also coolant loss, which I didn't measure precisely.

To see all the videos in the #m54rebuild series:    • M54 Engine Rebuild Project  

To view all the specs and torques for BMW M54/M52TU engines: https://goo.gl/jLvcgR

The seller I bought the timing kit from is out of stock. You'll have to check through the listings here to find a similar kit:
https://goo.gl/ealUrH

Make sure to check out the common repair steps video if you are unfamiliar with that:    • BMW 330i 325i E46 Common Repair Steps...  

Other videos you should watch if you are planning to change your head gasket or rebuild your engine are:

Oil Filter Housing Gasket Replace:    • BMW 330i 325i E46 Oil Filter Housing ...  
Intake Manifold Removal:    • BMW 330i 325i E46 CCV Replace & Intak...  
Exhaust Manifolds Removal:    • BMW E46 Exhaust Removal DIY #m54rebui...  
Timing Components Removal:    • BMW E46 Timing Components Removal DIY...  

This video is for entertainment purposes only. 50sKid assumes no liability for any repairs or modifications performed by the viewer as a result of the information contained in this video.