Timing chain failure (1M)

[BQTuning]

Originally Posted by MightyMouseTech

Damn, have only ever seen one chain broken in my entire career. And that was caused by a money shift, went down to second instead of fourth. Valves floated, hit pistons and snapped the chain. Honestly, I bet that is what happened. A chain will wear to the point of skipping teeth due to lack of proper lubrication LONG before it breaks.

Also, could one of the VANOS bolt heads broken off and got jammed in the chain? Did the VANOS bolt recall apply to the 1M?

This is what crossed my mind...........

[sixburgh]

I agree. If only the car could talk...

[BQTuning]

Fwiw, very important to know how to rev match. I have seen a lot of 6MT drivers not do this.