Dowel pins should be pressed in until they bottom-
out against the rocker shaft in the pedestal.
CLEANING AND INSPECTION
INTAKE MANIFOLD
Check for:
• Damage and cracks of each section.
• Clogged water passages in end cross over and
clogged gas passages.
EXHAUST MANIFOLD
Inspect exhaust manifolds for damage or cracks
and check distortion of the cylinder head mounting
surface with a straightedge and thickness gauge.
CYLINDER HEAD
CLEANING
(1) Use a gasket removal compound to soften the
old gasket material.
CAUTION: When cleaning the cylinder head and
block mating surfaces, do not use a metal scraper
because the sealing surfaces could be cut or
ground. Instead, use a wooden or plastic scraper.
(2) Make sure the gasket and/or foreign material
does not enter the oil feed hole or the oil return
holes.
INSPECTION
(1) Before cleaning, check for leaks, damage and
cracks.
(2) Clean cylinder head and oil passages.
(3) Check cylinder head for flatness (Fig. 134).
(4) Cylinder head must be flat within:
• Standard dimension = less than 0.05 mm (0.002
inch.)
• Service Limit = 0.2 mm (0.008 inch.)
• Grinding Limit = Maximum of 0.2 mm (0.008
inch.) is permitted.
CAUTION: 0.20 mm (0.008 in.) MAX is a combined
total dimension of the stock removal limit from cyl-
inder head and block top surface (Deck) together.
CAMSHAFT
(1) Inspect camshaft bearing journals for damage
and binding (Fig. 135). If journals are binding, check
the cylinder head for damage. Also check cylinder
head oil holes for clogging.
(2) Check the cam surface for abnormal wear and
damage and replace if defective. Measure the actual
wear (Fig. 135) and replace if out of limit, standard
Fig. 132 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. 133 Assemble Rocker Arms and Shaft
1 – HYDRAULIC LASH ADJUSTERS
2 – DOWEL PIN
3 – PEDESTAL
4 – ROLLER
Fig. 134 Checking Cylinder Head Flatness
9 - 138 3.2/3.5L ENGINE LH
DISASSEMBLY AND ASSEMBLY (Continued)
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