I just finished installing a redone head on my '85 euro 300TD, and rolled a new timing chain in. it seemed to go in without incident, until i was finished...now I SEEM TO HAVE AND EXTRA LINK. please see photo.

Is this an issue simply because i don't have the tensioner installed?

does anybody have any ideas as to what's going on here and what to do next? the chain i installed is an IWIS 50024208, Part Number 0039976294...i see it online described as a '136 link with master link.'

Could my EURO OM617 possibly have need for some 135 link chain? (though i can't find reference to such a thing online), or did i do something wrong during installation?

Please help

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-lee
'83 300CDT (286k)

former proud owner of:
'85 mercedes euro 300TD
'80 mercedes 300TD
'77 mercedes 280e
'80 mercedes euro 250
'82 mercedes euro 250