Chrysler Pacifica. Manual - part 670
(8) Install camshaft sprocket. Counterhold the
camshaft sprocket gear and tighten the camshaft
sprocket bolt to 102 N·m plus a 1/4 turn (75 lbs. ft.
plus a 1/4 turn). (Refer to 9 - ENGINE/VALVE TIM-
ING/TIMING BELT/CHAIN AND SPROCKETS -
INSTALLATION).
(9) Install the rear camshaft thrust plate.
(10) Rotate the camshaft gear to it’s alignment
mark and check the left camshaft gear and crank-
shaft gear timing alignment marks.
(11) Install the timing belt and tensioner (Refer to
9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN
AND SPROCKETS - INSTALLATION).
(12) Install the timing belt outer cover (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
(13) Install the power steering reservoir.
(14) Install the vibration damper (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION).
(15) Install the upper engine mount (Refer to 9 -
ENGINE/ENGINE MOUNTING/FRONT MOUNT -
INSTALLATION).
(16) Install the accessory drive belt tensioner.
(17) Install the accessory drive belt idler pulley.
(18) Install the right exhaust manifold (Refer to 9
- ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
INSTALLATION).
(19) Install the exhaust cross over pipe (Refer to 9
- ENGINE/MANIFOLDS/EXHAUST MANIFOLD -
INSTALLATION).
(20) Install the catalytic converter and exhaust
system.
(21) Connect both oxygen sensors.
(22) Lower the vehicle.
(23) Install the right rocker arm assembly.
(24) Install the right cylinder head cover and
ground strap.
(25) Install lower intake manifold (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
MANIFOLD
-
INSTALLATION).
(26) Install the fuel rail.
(27) Install the upper intake manifold (Refer to 9 -
ENGINE/MANIFOLDS/INTAKE
MANIFOLD
-
INSTALLATION).
(28) Install the air cleaner element housing (Refer
to
9
-
ENGINE/AIR
INTAKE
SYSTEM/AIR
CLEANER HOUSING - INSTALLATION)..
(29) Install the engine cover.
(30) Fill the coolant system.
(31) Connect the negative battery cable.
LEFT CYLINDER HEAD
CAUTION: THE CYLINDER HEAD GASKETS ARE
NOT
INTERCHANGEABLE
BETWEEN
CYLINDER
HEADS AND ARE CLEARLY MARKED RIGHT OR
LEFT.
The cylinder head bolts are tightened using a
torque plus angle procedure. The bolts must be
examined BEFORE reuse. If the threads are
necked down the bolts must be replaced (Fig.
24)..
Necking can be checked by holding a scale or
straight edge against the threads. If all the threads
do not contact the scale the bolt must be replaced
(Fig. 26).
CAUTION: When cleaning cylinder head and cylin-
der block surfaces, DO NOT use a metal scraper
because the surfaces could be cut or ground. Use
ONLY a wooden or plastic scraper (Refer to 9 -
ENGINE - STANDARD PROCEDURE - ENGINE GAS-
KET SURFACE PREPARATION).
(1) Clean sealing surfaces of cylinder head and
block.
CAUTION: Ensure that the correct head gaskets are
used and are oriented correctly on cylinder block.
(2) Install
head
gasket
over
locating
dowels.
Ensure the gasket is installed on the correct side of
engine.
NOTE: Before installing the cylinder head bolts,
lubricate the threads with engine oil.
(3) Install the cylinder head over locating dowels,
insert and finger tighten the head bolts.
(4) Tighten the cylinder head bolts in the sequence
shown in (Fig. 27). Using the 4 step torque-turn
method, tighten according to the following torque val-
ues:
• Step 1: All to 61 N·m (45 ft. lbs.)
• Step 2: All to 88 N·m (65 ft. lbs.)
• Step 3: All (again) to 88 N·m (65 ft. lbs.)
Fig. 26 Check for Stretched Bolts
1 - STRETCHED BOLT
2 - THREADS ARE NOT STRAIGHT ON LINE
3 - THREADS ARE STRAIGHT ON LINE
4 - UNSTRETCHED BOLT
CS
ENGINE 3.5L
9 - 35
CYLINDER HEAD(S) (Continued)