DS21 & DS21M / DS19A & DS19MA Repair Manual — Page 62

25. Fit the assemblies of connecting rods ~ pistons - barrels. a) Offer up the paper gasket on the cylinder barrel, the black lines which outline the positions of the extra thickness, parallel to the end faces of the big end and the extra thicknesses (the part with brown paper) in contact with the shoulder of the barrel. b) By hand work the joint onto the cylinder barrel as far as the first shoulder.