Chrysler PT Cruiser Service & Repair Manual page 1118

9 - 98 ENGINE 2.0L DOHC
CYLINDER HEAD (Continued)
(8) Disconnect the fuel supply line quick-connect at
the fuel rail assembly (Refer to 14 - FUEL SYSTEM/
FUEL DELIVERY/QUICK CONNECT FITTING -
STANDARD PROCEDURE).
(9) Remove heater tube support bracket from cyl-
inder head.
(10) Disconnect upper radiator and heater supply
hoses from coolant outlet connections.
(11) Disconnect engine coolant temperature sensor
connector.
(12) Remove accessory drive belts (Refer to 7 -
COOLING/ACCESSORY DRIVE/DRIVE BELTS -
REMOVAL).
(13) Disconnect exhaust pipe from manifold.
(14) Disconnect ignition coil wiring connector.
Remove ignition coil and plug wires from engine.
(15) Disconnect cam sensor wiring connector (Fig.
19).
Fig. 19 Camshaft Position Sensor
1 - PCV VALVE
2 - EGR VALVE
3 - CAMSHAFT POSITION SENSOR
(16) Remove timing belt and camshaft sprockets
(Refer to 9 - ENGINE/VALVE TIMING/TIMING
BELT AND SPROCKETS - REMOVAL).
(17) Remove timing belt idler pulley and rear tim-
ing belt cover (Refer to 9 - ENGINE/VALVE TIMING/
TIMING BELT TENSIONER
REMOVAL).
(18) Remove fasteners securing power steering
pump fluid reservoir/bracket to cylinder head.
(19) Remove cylinder head cover (Refer to 9 -
ENGINE/CYLINDER
COVER - REMOVAL).
(20) Remove camshafts (Refer to 9 - ENGINE/
CYLINDER HEAD/CAMSHAFT(S) - REMOVAL).
& PULLEY
HEAD/CYLINDER
(21) Remove rocker arms.
(22) Remove cylinder head bolts in the reverse
sequence of tightening (Fig. 25).
(23) Remove cylinder head from engine block.
(24) Inspect and clean cylinder head and block
sealing surfaces. Refer to Cleaning and Inspection in
this section for procedures.
NOTE: Ensure cylinder head bolt holes in the block
are clean, dry (free of residual oil or coolant), and
threads are not damaged.
CLEANING
To ensure engine gasket sealing, proper surface
preparation must be performed, especially with the
use of aluminum engine components and multi-layer
steel cylinder head gaskets.
NOTE: Multi-Layer Steel (MLS) head gaskets require
a scratch free sealing surface.
Remove all gasket material from cylinder head and
block (Refer to 9 - ENGINE - STANDARD PROCE-
DURE). Be careful not to gouge or scratch the alumi-
num head sealing surface.
Clean all engine oil passages.
INSPECTION
(1) Cylinder head must be flat within 0.1 mm
(0.004 in.) (Fig. 20).
(2) Inspect camshaft bearing journals for scoring.
-
Fig. 20 Checking Cylinder Head Flatness
1 - FEELER GAUGE
2 - STRAIGHT EDGE
(3) Remove carbon and varnish deposits from
HEAD
inside of valve guides with a reliable guide cleaner.
(4) Using a small hole gauge and a micrometer,
measure valve guides in 3 places top, middle and bot-
tom (Fig. 21). (Refer to 9 - ENGINE - SPECIFICA-
PT