Westerbeke W-46 - Page 47

ENGINE ASSEMBLY
14. Install the cylinder head
assembly as follows:
a. Lay the new cylinder head gasket (1) (no sealant required) onto the block (2) surface
with the correctly marked side UP. Install the two guide studs (4) (12mm x 1.50 x 2
inches)
to hold the gasket in position and place the cylinder head (3) onto the block.
b. Tighten the cylinder head
bolts to a torque of 12 kg-m
(86.8 lb-ft) at exhaust side
and 10.5 kg-m (76 lb-ft) at
intake side in the sequence
shown in the cylinder head
bolt tightening illustra-
tion .•
EXHAUST BOLTS tOto 17
i/NTAKE BOLTS 1 to 9 ·
CYLINDER HEAD BOLT TIGHTENING SEQUENCE
15. Install the push rods and
rocker shafts as follows:
a. Insert the push rods (1)
into the tappets.
b. Install rocker shaft as-
sembly as follows:
c. Insert 0-rings (3) into oil
pipe (2) and connect the oil
pipe to the front and rear
rocker shafts. Then tem-
porarily install each
bracket to the cylinder
head.
d. Temporarily tighten two or
three threads on the oil .
pipe union nut and connec-
tor.
e. Secure tne preinstalled
brackets by tightening four
bolts at the front and rear
sides uniformly to a torque
of 1.5 kg-m (10.85 lb-ft)
Tighten the long bolts (4)
fir st.
Engines & Generators
45