Service Manual

Cylinder Head Overhaul
Cylinder Head Removal
1. If the engine will not be removed from the vehicle,
lower the coolant level in the engine. Loosen the hose
clamp and remove the upper radiator hose from the
thermostat housing. Disconnect the coolant bypass
hose from the thermostat housing.
2. Remove plug from left side of cylinder block to drain
t
he coolant from head and cylinder block.
3. Remove the muffler.
4. Remove the alternator (see Alternator Removal and
I
nstallation in the External Engine Component Repair
section of this chapter).
5. Remove the glow plug lead wires.
6. Remove the fuel injection pipes and return pipe.
7. Remove the rocker cover and gasket.
8. Loosen the rocker stay attaching bolts. Remove the
rocker assembly
(Fig. 59).
9. Loosen the cylinder head bolts. Use the sequence
sho
wn in Figure 60. Remove the cylinder head assem-
bly including the intake and exhaust manifolds.
10. Remove the cylinder head gasket. Use a scraper
t
ool to remove the cylinder head gasket from the cylin-
der head and cylinder block. Make sure all of the gasket
material is removed. Do not damage or scratch the
cylinder head or cylinder block surfaces.
11. Remove the intake and exhaust manifolds from the
cylind
er head. Remove thermostat housing and
thermostat.
Figure 59
Figure 60
Liquid Cooled
Diesel Engine
Workman 3300-D/4300-D
Page 4 - 59 Liquid Cooled Diesel Engine