Operation; Standard Procedure - Measuring Camshaft End Play; Camshaft(S) Description; Removal - Chrysler PT Cruiser Service & Repair Manual

9 - 180 ENGINE 2.4L DOHC
CAMSHAFT OIL SEAL(S) (Continued)
Fig. 35 Camshaft Seal - Installation
1 - SPECIAL TOOL MD-998306
ENGINE/VALVE TIMING/TIMING BELT COVER(S)
- INSTALLATION).
CAMSHAFT(S)
DESCRIPTION
Both camshafts have six bearing journal surfaces
and two cam lobes per cylinder (Fig. 36). Flanges at
the rear journals control camshaft end play. Provision
for a cam position sensor is located on the intake
camshaft on the rear of the cylinder head. A hydro-
dynamic oil seal is used for oil control at the front of
the camshaft.

OPERATION

The camshaft is driven by the crankshaft via drive
sprockets and belt. The camshaft has precisely
machined lobes to provide accurate valve timing and
duration.
STANDARD PROCEDURE - MEASURING
CAMSHAFT END PLAY
(1) Oil camshaft journals and install camshaft
WITHOUT rocker arms. Install rear cam caps and
tighten screws to specified torque.
(2) Using a suitable tool, move camshaft as far
rearward as it will go.
(3) Zero dial indicator (Fig. 37).
(4) Move camshaft as far forward as it will go.
(5) Record reading on dial indicator. For end play
specification, (Refer to 9 - ENGINE - SPECIFICA-
TIONS).
(6) If end play is excessive, check cylinder head
and camshaft for wear; replace as necessary.
Fig. 36 Camshafts
1 - CAMSHAFT BEARING CAPS
2 - PLUG
3 - CAMSHAFT
4 - CYLINDER HEAD
5 - CAMSHAFT OIL SEAL
Fig. 37 Camshaft End Play - Typical

REMOVAL

(1) Remove cylinder head cover (Refer to 9 -
ENGINE/CYLINDER
COVER - REMOVAL).
(2) Remove camshaft position sensor and camshaft
target magnet (Refer to 8 - ELECTRICAL/IGNITION
CONTROL/CAMSHAFT
REMOVAL).
(3) Remove timing belt (Refer to 9 - ENGINE/
VALVE TIMING/TIMING BELT AND SPROCKETS -
REMOVAL).
HEAD/CYLINDER
POSITION SENSOR
PT
HEAD
-