There must be three recent threads with similar faults/problems, search for 'delivery valve seals' or click my user name for posts.

From memory, 70 -80nm is for the injector reassembly, installation is less but don't have the figure to hand.

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David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)