Chrysler PT Cruiser. Manual — part 685
ROCKER ARM/HYDRAULIC LASH ADJUSTER
DESCRIPTION
SPECIFICATIONS
Metric
Standard
Rocker Arm
Inside Diameter
(Shaft Bore)
19.00-19.02
mm
0.7480-0.7488
in.
Rocker Arm
Shaft Clearance
0.016-0.054
mm
0.0006-0.0021
in.
Lash Adjuster
Body Diameter
11.978-11.966
mm
0.4716-0.4711
in.
Plunger Travel
Minimum (Dry)
2.2 mm
0.087 in.
Dry Lash-Intake
1.50 mm
0.059 in.
Dry Lash-
Exhaust
1.46 mm
0.057 in.
Rocker Arm
Ratio (Camshaft
at Base Circle)
Intake
1.8 to 1
Exhaust
1.5 to 1
CYLINDER HEAD CAMSHAFT BEARING BORE
DESCRIPTION
SPECIFICATION
Metric
Standard
Bearing Bore
Diameter
25.359-25.380
mm
0.9984-0.9992
in.
CAMSHAFT
DESCRIPTION
SPECIFICATION
Metric
Standard
Journal
Diameter
25.290-25.309
mm
0.9957-0.9964
in.
Bearing
Clearance-
Diametrical
0.050-0.090
mm
0.0027-0.003 in.
Bearing
Clearance (Max.
allowable)
0.12 mm
0.0047 in.
End Play
0.05-0.39 mm
0.002-0.015 in.
Lift (Zero Lash)
Intake
8.55 mm
0.337 in.
Exhaust
8.00 mm
0.314 in.
Exhaust Valve
Timing*
DESCRIPTION
SPECIFICATION
Metric
Standard
Closes (BTDC)
-0.5°
Opens (BBDC)
37.7°
Duration
218.2°
Intake Valve
Timing*
Closes (ABDC)
37.7°
Opens (BTDC)
-4.4°
Duration
213.3°
Valve Overlap
-3.9°
*All readings in crankshaft degrees, at 0.5 mm (0.019
in.) of valve lift.
CYLINDER HEAD
DESCRIPTION
SPECIFICATION
Metric
Standard
Material
Cast Aluminum
Gasket
Thickness
(Compressed)
0.60-0.70 mm
0.023-0.0275 in.
VALVE SEAT
DESCRIPTION
SPECIFICATION
Metric
Standard
Angle
45°
Seat Diameter-
Intake
31.975-31.950
mm
1.258-1.257 in.
Seat Diameter-
Exhaust
25.20-25.175
mm
0.992-0.991 in.
Runout (Max.)
0.05 mm
0.002 in.
Valve Seat
Width-Intake
and Exhaust
0.90-1.30 mm
0.035-0.051 in.
Service Limit
1.50 mm
0.059 in.
9 - 20
ENGINE 1.6L SOHC
PT
ENGINE 1.6L SOHC (Continued)
VALVE GUIDE
DESCRIPTION
SPECIFICATION
Metric
standard
Inside Diameter
5.975-6.000
mm
0.235-0.236 in.
Guide Height
(spring seat to
guide tip)
13.25-13.75
mm
0.521-0.541 in.
VALVES
DESCRIPTION
SPECIFICATION
Metric
Standard
Face Angle
Intake and
Exhaust
45-45.5°
Head Diameter-
Intake
30.10-30.36
mm
1.185-1.195 in.
Head Diameter-
Exhaust
23.13-23.39
mm
0.910-0.920 in.
VALVE MARGIN
DESCRIPTION
SPECIFICATION
Metric
Standard
Intake
1.16-1.50 mm
0.0457-0.0591
in.
Service Limit
0.95 mm
1/32 in.
Exhaust
1.61-1.95 mm
0.063-0.077 in.
Service Limit
1.05 mm
3/64 in.
VALVE LENGTH
DESCRIPTION
SPECIFICATION
Metric
Standard
Intake
109.28-109.78
mm
4.302-4.322 in.
Exhaust
118.08-118.58
mm
4.649-4.669 in.
VALVE STEM TIP HEIGHT
DESCRIPTION
SPECIFICATION
Metric
Standard
Intake
49.16 mm
1.935 in.
Exhaust
49.19 mm
1.937 in.
VALVE STEM DIAMETER
DESCRIPTION
SPECIFICATION
Metric
Standard
Intake
5.934-5.952
mm
0.2337-0.2344
in.
Exhaust
5.906-5.924
mm
0.2326-0.2333
in.
VALVE STEM TO GUIDE CLEARANCE
DESCRIPTION
SPECIFICATION
Metric
Standard
Intake
0.023-0.066
mm
0.0009-0.0026
in.
Max. Allowable
0.076 mm
0.003 in.
Service Limit
0.25 mm
0.010 in.
Exhaust
0.051-0.094
mm
0.002-0.0037 in.
Max. Allowable
0.101 mm
0.004 in.
Service Limit
0.25 mm
0.010 in.
VALVE SPRINGS
DESCRIPTION
SPECIFICATION
Metric
Standard
Free Length
(Approx.)
51.3 mm
2.02 in.
Nominal Force
(Valve Closed)
286-319 N @
43.0 mm
64.3-71.71 lbs.
@ 1.6 in.
Nominal Force
(Valve Open)
759-833 N @
34.45 mm
170.63-187.27
lbs. @ 1.28 in.
Installed Height
43.0 mm
1.69 in.
PT
ENGINE 1.6L SOHC
9 - 21
ENGINE 1.6L SOHC (Continued)
OIL PUMP
DESCRIPTION
SPECIFICATION
Metric
Standard
Relief Valve
Opening
Pressure
413.69 kPa
60 psi
OIL PRESSURE
DESCRIPTION
SPECIFICATION
Metric
Standard
(NOTE: At Normal Operating Temperatures)
Pressure @
Curb Idle
Speed*
25 kPa
4 psi
Pressure @
3000 RPM
170-550 kPa
25-80 psi
*If pressure is ZERO at idle, DO NOT run engine at
3000 RPM.
TORQUE
DESCRIPTION
N·m
Ft.
Lbs.
In.
Lbs.
Camshaft Position Sensor
10
–
85
Crankshaft Position
Sensor
10
–
85
Camshaft Sprocket—Bolt
115
85
–
Rocker Shaft/Camshaft
Bearing Cap
25
–
225
Timing Chain Cover
12
–
105
Timing Chain Guide
28
–
250
Timing Chain Tensioner
Plug
62
46
–
Connecting Rod
Cap—Bolts
26 +
1
⁄
4
turn
19
+
1
⁄
4
turn
–
Crankshaft Main Bearing
Cap/Bed Plate
Bedplate Bolts
30
22
–
Main Bearing Cap Bolts
61
45
–
Crankshaft Damper—Bolt
115
85
–
Cylinder Head—Bolts
(Refer to 9 - ENGINE/
CYLINDER HEAD -
INSTALLATION)
Cylinder Head Cover
12
–
105
DESCRIPTION
N·m
Ft.
Lbs.
In.
Lbs.
Right Engine Mount
Bracket
M12—Fasteners
118
87
–
M10—Fasteners
68
50
–
Exhaust Manifold Heat
Shield
28
–
250
Exhaust Manifold to
Cylinder Head Bolts
23
–
200
Intake Manifold - Upper
12
–
105
Intake Manifold - Lower
26
–
230
Intake Manifold Support
Bracket
M6—Fasteners
19
–
165
M8—Fasteners
28
–
250
Oil Filter Cartridge Cap
25
18
–
Oil Filter Cartridge
Housing
28
–
250
Oil Pan Bolts
31
–
275
Oil Pan Drain Plug
27
20
–
Oil Pump Pick-up Tube
Bolt
12
–
105
9 - 22
ENGINE 1.6L SOHC
PT
ENGINE 1.6L SOHC (Continued)
SPECIAL TOOLS
1.6L SOHC ENGINE
Puller 1026
Crankshaft Damper Removal Insert 6827A
Crankshaft Damper/Sprocket Installer 8385
Puller 5048
Puller Adaptor 8539
Crankshaft Sprocket Installer 8386
Puller, Slide Hammer C-3752
Spark Plug Tube Remover 8819
PT
ENGINE 1.6L SOHC
9 - 23
ENGINE 1.6L SOHC (Continued)
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