Timing Chain Guides shattered. What to do? Why would they break apart?

[stphers]

Problem is that it could not be straight metal, there would have to be either plastic or the same material that is on the tensioner rail so the chain would run quiet AND then we are right back to the same issue Quite honestly, I have not really seen a lot of them really blown up a few cracked

 

[Stevehose]

It's designed to take the wear instead of the chain

I am surprised the factory did not come up with a metal variant just like they did with plastic coolant impellers in some models after getting failure experience.
Mostly surprised Stan did not craft an aftermarket group buy for metal guides...

 

[rsporsche]

There is a crank holding tool that bolts to the front of the crank and is positioned under the frame rail. With a 3/4 ” breaker bar and the right amount of extension pipe you can easily apply the force you need.

SIR Tools BMW3034-2 Crank Pulley Securing Bar | ToolDiscounter

BMW3034-2 Crank Pulley Securing Bar. Shop Crankshaft Tools from SIR Tools at ToolDiscounter

www.tooldiscounter.com

spoken by the man that knows a thing or two about a thing or two ... especially m30 engines in e9 coupes