OM642 Timing Chain Replacement DIY - GL 350 Blutech
To my understanding any other installation method is 10 times more effort




Improvised cam cover removal tool
Do the new master link pins need to be crimped on BOTH ends?
Or is the new master link already crimped on one end?
Please say "it's already crimped on one end".
I crimped mine only on the one end after pressing on the final side plate. I didn't inspect the other end of the master link to make sure it was crimped from the factory.
And of course, now I have the valve cover back on and mostly re-assembled. So I would really prefer not to take the valve cover back off so I can sleep tonight....
I can look down in the oil cap on my older jeep OM642 and see the chain, but the GL350 I'm working on right now has a splash shield down in there that completely obscures visibility to look at the chain.
WIS instructions say to press on the end plate and then crimp the one end only. Also a mercedes video I found on youtube (
And I also stuck a borescope down there and looked at thee crimps on every link (at least 3 times...) and couldn't tell which one was the installed link.
Kinda makes sense that the end with pre-installed end plate would be pre-crimped, but I can't sleep with doubt like that...








The Best of Mercedes & AMG
I’ll take some pictures of my tool modifications and start another thread about how to modify the chain tool so that the intake cam doesn’t need to be removed.




