Technical information

Powertrain Engines
Pistons
The pistons of the ZJ engine only have valve recesses on the intake side, whereas the
pistons of the Z6 engine have valve recesses on the intake and exhaust side.
Piston, piston pin and connecting rod are not shrinkage fitted, i.e. the components can
be replaced separately.
L1001.4_01028
1 Engine front side 4 Z6 engine
2 ZJ engine 5 Valve recesses (exhaust side)
3 Dot indicating the installation direction 6 Valve recesses (intake side)
Curriculum Training 01-33