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Dodge Neon / Neon SRT-4. Manual - part 231

ROCKER ARM/HYDRAULIC LASH ADJUSTER

DESCRIPTION

SPECIFICATION

Metric

Standard

Rocker Arm

Inside Diameter

20.00-20.02

0.787-0.788 in.

Rocker Arm

Shaft Clearance

0.016-0.054

0.0006-0.0021

in.

Body Diameter

22.949-22.962

0.9035-0.9040

in.

Plunger Travel
Minimum (Dry)

2.2 mm

0.087 in.

Dry Lash-Intake

1.00 mm

0.039 in.

Dry Lash-
Exhaust

1.40 mm

0.055 in.

Rocker Arm
Ratio

1.4:1

CYLINDER HEAD CAMSHAFT BEARING BORE

DIAMETER

DESCRIPTION

SPECIFICATION

Metric

Standard

Journal No.1

41.200-41.220

1.622-1.6228 in.

Journal No.2

41.600-41.621

1.637-1.638 in.

Journal No.3

42.0-42.021

1.653-1.654 in.

Journal No.4

42.4-42.421

1.669-1.670 in.

Journal No.5

42.8-42.821

1.685-1.6858 in.

CAMSHAFT

DESCRIPTION

SPECIFICATION

Metric

Standard

Journal
Diameter No. 1

41.128-41.147

1.619-1.6199 in.

Journal
Diameter No. 2

41.528-41.547
mm

1.634-1.635 in.

Journal
Diameter No. 3

41.928-41.947
mm

1.650-1.651 in.

Journal
Diameter No. 4

42.328-42.374
mm

1.666-1.668 in.

Journal
Diameter No. 5

42.728-42.747
mm

1.682-1.6829 in.

Bearing
Clearance-
Diametrical

0.053-0.093

0.0021-0.0037

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

7.2 mm

0.283 in.

Exhaust

7.03 mm

0.277 in.

Intake Valve
Timing*

Closes (ABDC)

41.1°

Opens (ATDC)

13.9°

Duration

207.2°

Exhaust Valve
Timing*

Closes (ATDC)

5.4°

Opens (BBDC)

43.7°

Duration

229.1°

Valve Overlap

0°

*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)

1.15 mm

0.045 in.

9 - 18

ENGINE 2.0L SOHC

PL/SRT-4

ENGINE 2.0L SOHC (Continued)

VALVE SEAT

DESCRIPTION

SPECIFICATION

Metric

Standard

Angle

45°

Seat Diameter-
Intake

33 mm

1.299 in.

Seat Diameter-
Exhaust

28 mm

1.102 in.

Runout (Max.)

0.05 mm

0.002 in.

Valve Seat
Width-Intake
and Exhaust

0.9-1.3 mm

0.035-0.051 in.

Service

Limit-Intake

2.0 mm

0.079 in.

Service

Limit-Exhaust

2.5 mm

0.098 in.

VALVE GUIDE

DESCRIPTION

SPECIFICATION

Metric

Standard

Diameter I.D.

5.975-6.000

0.235-0.236 in.

Guide Bore
Diameter

11.0-11.02 mm

0.4330-0.4338

in.

Guide Height
(spring seat to
guide tip)

13.25-13.75

0.521-0.541 in.

VALVES

DESCRIPTION

SPECIFICATION

Metric

Standard

Face Angle-
Intake and
Exhaust

45-45.5°

Head Diameter-
Intake

32.12-33.37

1.303-1.313 in.

Head Diameter-
Exhaust

28.57-28.83

1.124-1.135 in.

Valve Length
(Overall)

-Intake

114.39-114.89

4.503-4.523 in.

-Exhaust

116.94-117.44

4.604-4.623 in.

Valve Stem
Diameter

-Intake

5.934-5.952

0.2337-0.2344

in.

-Exhaust

5.906-5.924

0.2326-0.2333

in.

VALVE MARGIN

DESCRIPTION

SPECIFICATION

Metric

Standard

Intake

1.15-1.48 mm

0.0452-0.0583

in.

Service Limit

0.79 mm

0.0312 in.

Exhaust

1.475-1.805

0.058-0.071 in.

Service Limit

1.19 mm

0.0469 in.

VALVE STEM TIP HEIGHT

DESCRIPTION

SPECIFICATION

Metric

Standard

Intake

44.71-45.77

1.76-1.80 in.

Exhaust

43.51-44.57

1.71-1.75 in.

PL/SRT-4

ENGINE 2.0L SOHC

9 - 19

ENGINE 2.0L SOHC (Continued)

VALVE STEM TO GUIDE CLEARANCE

DESCRIPTION

SPECIFICATION

Metric

Standard

Intake

0.048-0.066

0.0018-0.0025

in.

Max. Allowable

0.076 mm

0.003 in.

Exhaust

0.0736-0.094

0.0029-0.0037

in.

Max. Allowable

0.101 mm

0.004 in.

VALVE SPRINGS

DESCRIPTION

SPECIFICATION

Metric

Standard

Free Length
(Approx.)

46.75 mm

1.84 in.

Nominal Force
(Valve Closed)

331 N @ 39.8

70 lbs. @ 1.57

in.

Nominal Force
(Valve Open)

711 N @ 32.6

160 lbs. @ 1.28

in.

Installed Height

40.18 mm

1.580 in.

OIL PUMP

DESCRIPTION

SPECIFICATION

Metric

Standard

Clearance Over
Rotors (Max.)

0.10 mm

0.004 in.

Cover
Out-of-Flat
(Max.)

0.076 mm

0.003 in.

Inner Rotor
Thickness (Min.)

7.64 mm

0.301 in.

Outer Rotor
Thickness (Min.)

7.64 mm

0.301 in.

Outer Rotor
Clearance
(Max.)

0.039 mm

0.015 in.

Outer Rotor
Diameter (Min.)

79.95 mm

3.148 in.

Tip Clearance
Between Rotors
(Max.)

0.20 mm

0.008 in.

Oil pressure
Relief
Spring-Free
Length (approx.)

60.7 mm

2.39 in.

OIL PRESSURE

DESCRIPTION

SPECIFICATION

Metric

Standard

At Curb Idle
Speed*

25 kPa

4 psi

At 3000 rpm

170-550 kPa

25-80 psi

CAUTION:
*If pressure is ZERO at curb idle, DO NOT run engine
at 3000 rpm.

9 - 20

ENGINE 2.0L SOHC

PL/SRT-4

ENGINE 2.0L SOHC (Continued)

TORQUE

DESCRIPTION

N·m

Ft.

Lbs.

In.

Lbs.

Camshaft Sensor-Bolts

(Refer to 8 -

ELECTRICAL/IGNITION

CONTROL -

SPECIFICATIONS)

Camshaft Sprocket-Bolt

115

Connecting Rod
Cap-Bolts

27 +

⁄

turn

⁄

turn

Structural Collar-Bolts

(Refer to 9 - ENGINE/

ENGINE BLOCK/

STRUCTURAL COVER -

INSTALLATION)

Crankshaft Main Bearing
Cap/Bedplate

-M8 Bolts

-M11 Bolts

Crankshaft Damper

136

100

Crankshaft Target Ring

110

Cylinder Head-Bolts

(Refer to 9 - ENGINE/

CYLINDER HEAD -

INSTALLATION)

Cylinder Head Cover-
Bolts

105

Engine Mount Bracket
Right-Bolts

Engine Mounting

Refer to Procedure

Exhaust Manifold to
Cylinder Head-Bolts

200

Exhaust Manifold Support
Bracket (Federal and
LEV)

-M8 Nut

250

-M10 Bolt

Exhaust Manifold Support
Bracket (ULEV)

Engine Torque Strut
Bracket to Engine-Bolts

Flex Plate to Crankshaft

Intake Manifold-Bolts

105

Powertrain Bending
Strut-Front

-Long Bolts

101

-Short Bolts

Oil Filter Adaptor

DESCRIPTION

N·m

Ft.

Lbs.

In.

Lbs.

Oil Filter

Oil Pan—Bolts

105

Oil Pan Drain—Plug

Oil Pump to Block

250

Oil Pump Cover
Plate-Bolts

105

Oil Pump Pick-up
Tube-Bolt

250

Oil Pump Relief
Valve-Cap

PCV Valve

5.6

Rocker Arm Shaft-Bolts

250

Spark Plugs

(Refer to 8 -

ELECTRICAL/IGNITION

CONTROL -

SPECIFICATIONS)

Timing Belt Cover-Bolts

105

Timing Belt Tensioner
Bracket-Mounting Bolts

Timing Belt Tensioner
Lock Nut

Water Pump-Bolts

(Refer to 7 - COOLING -

SPECIFICATIONS)

PL/SRT-4

ENGINE 2.0L SOHC

9 - 21

ENGINE 2.0L SOHC (Continued)

Content .. 229 230 231 232 ..