Note: The permissible difference in piston weight for one engine is 4 g, in case of repair up to 10 g.
Note: The cylinder bores are serially divided by group number. Group numbers: 0; 0+; 1; 1+; 2 and 2+. The group numbers are stamped next to the cylinder bores and on the piston crowns. Cylinder blocks with corresponding pistons are supplied as spare parts. In case of repair, pistons with group numbers 0, 1 and 2 are supplied.
Note: The permissible difference in piston weight in one engine is 8 g, in case of repair - up to 10 g.
Note: The distance between the piston crown and the cylinder block dividing plane for a normal sized piston (in brackets - for repair sizes) in mm.
Control rod 9 mm in diameter for guide bushings and exhaust valves No.116 589 21 00.
Note: The main bores after knocking out the bushing are not significantly larger than the serial bore, with the exception of replacement engines (those that have undergone major repairs in workshops), in which the bores have been machined and therefore no longer correspond to the serial bores. Guide bushes with a green marking and an overlap of 0.01 to 0.023 mm must not be used, as they may come loose in the event of an accident. Guide bushes with a grey-brown marking can also be installed instead of slightly loosened bushes without machining the main bore in the cylinder head. Bushes that must be reamed on the inside after being driven in may only be used if no others are available.
Control measurements are carried out with the selected valve clearance and valve stroke of 2.00 mm.