Dear John,
Thanks for your answer. Its exactly what we have done when we have reassembled them.
But I have a question concerning the new rings in old pistons / sleeves : When everything has been reassembled, we have noticed that rotating the engine manually was becomming more and more difficult while increasing the number of pistons linked to the crankshaft. Especially after connecting the fourth one. Everithing has of course been mounted with oil and after some rotations it is comming more "friendly" but remains a little bit hard : Is it something normal
(note : the loose on the rings - which we call the "cut" in french - was aroung 3 mm instead of the 0.7 maximum before we changed them. now the loose has decreased to something around 0.7 if I remember well).
Thanks for your input and best regards,
Yann