Chrysler PT Cruiser 2001 Service Manual Supplement page 1038

PT
REMOVAL AND INSTALLATION (Continued)
(26) Perform camshaft and crankshaft timing
relearn procedure as follows:
• Connect the DRB scan tool to the data link
(diagnostic) connector. This connector is located in
the passenger compartment; at the lower edge of
instrument panel; near the steering column.
• Turn the ignition switch on and access the "mis-
cellaneous" screen.
• Select "re-learn cam/crank" option and follow
directions on DRB screen.
PISTON AND CONNECTING ROD
REMOVAL
(1) Remove cylinder head and oil pan. Refer to pro-
cedures in this section.
(2) Remove top ridge of cylinder bores with a reli-
able ridge reamer before removing pistons from cyl-
inder block. Be sure to keep tops of pistons
covered during this operation. Mark piston with
matching cylinder number (Fig. 118).
Fig. 118 Piston Markings
1 – WEIGHT DESIGNATION AND DIRECTIONAL ARROW WILL
BE IMPRINTED IN THIS AREA
CAUTION: DO NOT use a number stamp or a punch
to mark connecting rods. Damage to connecting
rod could occur.
(3) Using a permanent ink marker or scribe tool
mark the cylinder number on the side of the rod and
cap (Fig. 119) for identification.
(4) Pistons will have a stamping in the approxi-
mate location shown in (Fig. 118). These stamps will
be either a directional arrow or a weight identifica-
tion for the assembly. L is for light and H is for
heavy. These assemblies should all be the same
weight class. Service piston assemblies are marked
with a S and can be used with either L or H produc-
tion assemblies. The weight designation stamps
should face toward the timing belt side of the engine.
2001 PT CRUISER
Fig. 119 Identify Connecting Rod to Cylinder
(5) Pistons and connecting rods must be removed
from top of cylinder block. Rotate crankshaft so that
each connecting rod is centered in cylinder bore.
(6) Remove connecting rod cap bolts Do not use
old bolts if reinstalling connecting rod. Push
each piston and rod assembly out of cylinder bore.
NOTE: Be careful not to nick crankshaft journals.
(7) After removal, install bearing cap on the mat-
ing rod.
(8) Piston and rods are serviced as an assembly.
PISTON RING—REMOVAL
(1) ID mark on face of upper and intermediate pis-
ton rings must point toward piston crown.
(2) Using a suitable ring expander, remove upper
and intermediate piston rings (Fig. 120).
Fig. 120 Piston Rings—Removing and Installing
(3) Remove the upper oil ring side rail, lower oil
ring side rail and then oil ring expander from piston.
(4) Clean ring grooves of any carbon deposits.
PISTON RINGS—INSTALLATION
(1) Install rings with manufacturers I.D. mark fac-
ing up, to the top of the piston (Fig. 121).
2.0L DOHC ENGINE 9a - 55