NOTE: The notches on the rocker shafts face up
(Fig. 80). Notches on the right cylinder bank face
towards rear of engine. Notches on left cylinder
bank face toward front of engine.
(2) Install dowel pins (Fig. 82). Dowel pins pass
through the pedestal into the exhaust rocker shafts.
Dowel pins should be pressed in until they bottom-
out against the rocker shaft in the pedestal.
CAUTION: Inspect all lash adjuster plastic retaining
caps for proper retention before installation.
INSTALLATION
NOTE: Rocker arm and shaft assembly can be
installed either prior to or after (preferred) cylinder
head installation.
(1) Rotate camshafts to the position shown in (Fig.
83). With the camshafts in these positions the lobes
are in a neutral position (no load to the valve). This
will allow the rocker arm shaft assembly to be tight-
ened into position with little or no valve spring load
on it.
(2) Install the rocker arm and shaft assembly
making sure that the identification marks face
toward the front of engine for left head and toward
the rear of the engine for right head.
(3) Tighten rocker arm/shaft assembly bolts in
sequence to 31 N·m (275 in. lbs.) (Fig. 84).
VALVE STEM SEALS OR VALVE SPRINGS—IN
VEHICLE
(1) Perform fuel system pressure release procedure
before attempting any repairs. Refer to FUEL
SYSTEM for procedure.
Fig. 81 Rocker Arms and Shaft—Disassembly
1 – 4mm SCREW AND NUT
2 – 4mm SCREW AND NUT
3 – WASHER
4 – SPACER
5 – DOWEL
6 – DOWEL
7 – SPACER
8 – WASHER
Fig. 82 Assemble Rocker Arms and Shaft
1 – HYDRAULIC LASH ADJUSTERS
2 – DOWEL PIN
3 – PEDESTAL
4 – ROLLER
Fig. 83 Camshaft Sprockets Neutral Position
Fig. 84 Rocker Arm and Shaft Assembly Tightening
Sequence
9 - 120 3.2/3.5L ENGINE LH
REMOVAL AND INSTALLATION (Continued)
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