You will need to use the master link in the new chain, then you have to purchase a tool that guides the chain onto the sprocket without the chain jumping teeth.
Then you need the tool to press the link together and crimp the end. Not to mention the tool that pulls the rail pins out and the one to set the injection pump up when done.

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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope
1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM