[Bmwdoubles_]

I enjoy this guy's works and so glad he brought this to light. I've had issues with the timing chain guide when I was trying to circumvent the Continental fuel pump and mod to the S65 dual pump. Recently I had a fuel module fail and coincidently had a crankshaft sensor synchronization error. My car wouldn't start because of the crankshaft error and there was a possibility it may have been caused by the helix overdrive causing the timing chain to slip. Thankfully that wasn't the reason, however it was a scary thought from my past experience with the timing chain guide. Now here's this video with the helix overdrive showing an exact correlation with the timing chain guide and the HOD.