Chrysler Dodge Caravan 2002 Manual page 1236

RS
ROCKER ARMS
REMOVAL
NOTE: This procedure is for in-vehicle service with
camshafts installed.
(1) Remove cylinder head cover. (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - REMOVAL)
(2) Remove spark plugs.
(3) Rotate engine until the camshaft lobe, on the
follower being removed, is positioned on its base cir-
cle (heel). Also, the piston should be a minimum of
6.3 mm (0.25 in) below TDC position.
CAUTION: If cam follower assemblies are to be
reused, always mark position for reassembly in
their original positions.
(4) Using Special Tools 8215A and 8436 slowly
depress valve assembly until rocker arm can be
removed (Fig. 38).
(5) Repeat removal procedure for each rocker arm.
Fig. 38 Rocker Arm - Removal/Installation
1 - SPECIAL TOOL 8215A
2 - SPECIAL TOOL 8436
3 - 3/8 DRIVE RACHET
HEAD/CYLINDER
INSPECTION
Inspect the rocker arm for wear or damage (Fig.
39). Replace as necessary.
HEAD
1 - TIP
2 - LASH ADJUSTER POCKET
3 - ROLLER
INSTALLATION
(1) Lubricate rocker arm with clean engine oil.
(2) Using Special Tools 8215A and 8436 slowly
depress valve assembly until rocker arm can be
installed on the hydraulic lifter and valve stem (Fig.
38).
(3) Repeat installation procedure for each rocker
arm.
(4) Install spark plugs.
(5) Install cylinder head cover. (Refer to 9 -
ENGINE/CYLINDER
COVER(S) - INSTALLATION)
ENGINE BLOCK
DESCRIPTION
The cast iron cylinder block is a two-piece assem-
bly, consisting of the cylinder block and bedplate (Fig.
40). The bedplate incorporates the main bearing caps
and bolts to the cylinder block. This design offers a
much stronger lower end and increased cylinder
block rigidity. The rear oil seal retainer is integral
with the block. The bedplate and block are serviced
as an assembly.
ENGINE 2.4L
Fig. 39 Rocker Arm
HEAD/CYLINDER
9 - 35
HEAD