Pistons and connecting rods - removal and refitting

Engine repair procedures 1.8 litre 16 valve / Pistons and connecting rods - removal and refitting

The big-end caps on 16 valve engines are fitted with oil jets which direct a stream of oil to the underside of the pistons, mainly for cooling purposes (see illustration).

5.1 Big-end cap components

1 Oil jet
2 Screw
3 Bearing shell
4 Cap
5 Nuts

The oil jets are secured to the caps by small screws which must be coated with thread-locking fluid before inserting them and tightening to the specified torque.