Its worth confirming the gap is within limits. --Maybe just on one piston

Normally new pistons have a number like 'Sp 0.125' or similar, that the machine-shop uses to gauge the clearance when honing the block on its final stages to ensure correct clearances...

The Piston Maker 'Kolbenshmitt' will have gapped the rings with this clearance in mind, so theoretically, you should be able to fit them without messing round.

The oil-ring has a plastic sleeve on its expander-ring, maybe to ensure its ends dont foul with the ends of the ring. The gaps should be placed at 180 degree positions between ring and expander...

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Alastair AKA H.C.II South Wales, U.K. based member

W123, 1985 300TD Wagon, 256K,
-Most recent M.B. purchase, Cost-a-plenty, Gulps BioDiesel extravagantly, and I love it like an old dog.

W114, 1975 280E Custard Yellow,
-Great above decks needs chassis welding--Really will do it this year....