Exhaust valve seat inserts, pressed into the cylinder
The cylinder head (Fig. 1 and 2) is a one-piece casting
securely held to the top of the cylinder block by special
head, permit accurate seating of valves under varying
conditions of temperature and materially prolong the life
of the cylinder head.
The exhaust valves, fuel injectors and the valve and
To ensure efficient cooling, each fuel injector is inserted
injector operating mechanism are located in the cylinder
into a thin-walled tube (Fig. 3) which passes through the
water space in the cylinder head. The lower end of the
injector tube is pressed into the cylinder head and flared
Two exhaust valves are provided for each cylinder.
over; the upper end is flanged and sealed with a
neoprene seal. The sealed
Fig. 1. Typical Cylinder Head Assembly (Two-Valve)