Westerbeke BCGB - Cylinder Head and Valve Service; Cylinder Head Removal and Inspection

CYLINDER HEAD AND VALVES
4 CYLINDER HEAD
TORQUE 43 - 51 FT-LBS
50-70Nm
3
~-----'14
9 VALVE
SEAL
1 o VALVE
19 VALVE GUIDE
REMOVING THE CYLINDER HEAD
FROM THE CYLINDER BLOCK
Disassemble the cover bolts as shown above, taking care not
to lose the washer and insert Remove the rocker cover and
rocker cover gasket
Loosen each
of the cylinder head bolts, a little at a time so
as to avoid the possibility
of distorting the cylinder. Repeat
several times until the bolts are unfastened. Follow the
sequence shown in the diagram.
Remove the cylinder head and the cylinder head gasket
Engines & Generators
15
HEAD
¢:::l
ENGINE
FRONT
2
NUMBERS INDICATE THE
SUGGESTED ORDER OF
DISASSEMBLY
5 7
8 6
CYLINDER HEAD BOLTS
LOOSENIN~ SEQUENCE