15 - Engine
30 - Valve
00 - General
15 - 117 9813/5050-2 15 - 117
00 - General
Introduction .................................................. 15-117
Technical Data ............................................. 15-118
Component Identification ............................. 15-119
Operation ..................................................... 15-121
Adjust .......................................................... 15-121
Remove and Install ..................................... 15-124
Introduction
The valve train system opens and closes the
valves with correct timing in relation to the piston
movements.
Each push rod has one end in a valve tappet and the
other end under a rocker arm, or as applicable. The
adjusting screw has a ball shaped end that locates in
the push rod. The adjusting screw is used for setting
the valve clearance.
The valves extend through the cylinder head. There
are no sleeves or valve guides in the cylinder head.
The valves are made from a special metal to provide
a long service life. Damaged or worn valves cannot
be lapped or reground and must be replaced with
new ones. Each valve stem has an oil seal.
The Valve seat inserts are pressed into the cylinder
head. The seat inserts are also made from a special
metal to provide for a long service life. Damaged or
worn seat inserts can be removed and replaced with
new ones.
To Next Page
Loading...
