Case W9 - Cylinder Head and Components; Component Removal Procedures

22-6
CYLINDER HEAD AND COMPONENTS
Four Cylinder, 267B, 301 B, 336BO and 336BDT Engines
(Refer to Figure 5)
Removal
Remove the muffler and hood from vehicle . Disconnect the exhaust system and air cleaner
from the manifolds . Steam clean the entire area where service work is to be performed .
1. Drain the cooling system. CAUTION If
the engine is hot, do not remove the rad-
iator cap until the coolant has had sufficient
time to cool. Loosen the cap to the first
stop carefully to relieve any excess pres-
sure before removing it completely. Re-
move the upper radiator and water pump
hoses.
2. Disconnect the high pressure fuel lines
from the injectors and the leak-off tubes
between the cylinder heads. Cap them to
prevent any foreign particles from enter-
ing. Remove the injectors as described in
Section 33 of the Service Manual.
3.
Remove the breather tube (1) and discard
the gaskets (2) . Remove the manifold
brace (5) and spacer (6), if equipped.
4. Remove the intake elbow (3) and gasket
(4), if equipped and discarding the gasket.
5. Remove the intake manifold (7) and dis -
card the gaskets (8).
6.
Remove the exhaust stack (9) or cover
plate (10) if equipped. Remove the ex-
haust elbow (11) if equipped.
7. Remove the exhaust manifold (12) and dis -
card the gaskets (13) .
8.
Remove the water manifold (14) and dis-
card the gaskets (15). NOTE If the ther-
mostat is to be serviced, remove the
thermostat housing (28) and refer to
Section 25 of the Service Manual.
9. Remove the valve cover nuts (14), bevel
washers (15), gaskets (16), valve cover
(17) and cover gasket (18). Discard gaskets
(16 and 18).
10.
Remove the studs (19), washers (20) and
rocker arm assemblies (21) . NOTE Tag
the rocker arm assemblies for proper a-
ssembly. See Page 22- 16for servicing .
Remove the push rods (22) and tag them
for proper assembly .
11.
Remove the cylinder head bolts and
washers (23) . Remove the cylinder head
assembly (24), fire rings (25) and head
gaskets (26) . Discard the fire rings and
headgaskets. See Page 22- 18for servi-
cing of the cylinder head.