The head and valve
This figure shows the various components
of this group, which are fitted in the following order:
1) The valve.
2) The brass washer.
3) The lower plate.
4) The oil seal rubber.
5) The spring.
6) The upper plate.
7) The two half-cones.
The brass washer has been fitted on the
first 50 engines only, i.e. from number 750.001 to 750.050.