General Specifications

Engine

NOTE: This section contains information, steps and procedures that may not be specific to your engine.

This section covers general procedures and diagnosis and testing of the engine system, except for exhaust emission control devices, which are covered in the Powertrain Control/Emissions Diagnosis Manual.

The engine incorporates the following features:

• a closed positive crankcase ventilation (PCV) system.
• an exhaust emission control system.
• an evaporative emission control system.

Some engines incorporate a fail-safe cooling system. Refer to the appropriate section in Group for the procedure.

The engine, fuel system, ignition system, emissions system and exhaust system all affect exhaust emission levels and must be maintained according to the maintenance schedule. Refer to the scheduled Maintenance Guide.

Correct engine identification is required to order parts. Refer to the appropriate section in Group for the procedure.

For complete vehicle and engine identification codes.

• Engine (Diagnosis and Testing)
• Sprockets
• Rocker Arms - Inspection
• Push Rods - Inspection
• Camshaft Journal - Clearance, Plastigage Method
• Camshaft End Play - Push Rod Engines
• Camshaft End Play - OHC Engines
• Camshaft Lobe Lift
• Camshaft Runout
• Crankshaft Main Bearing Journal - Clearance
• Crankshaft End Play
• Crankshaft Runout
• Crankshaft - Connecting Rod Journal Taper, Out of Round
• Piston Inspection
• Piston - Pin to Bore Diameter
• Piston - Selection
• Piston - Ring End Gap
• Piston - Ring-to-Groove Clearance
• Piston - Pin Diameter
• Connecting Rod - Bushing Diameter
• Connecting Rod - Twist
• Connecting Rod - Bearing Journal Clearance
• Connecting Rod - Side Clearance
• Valve Stem to Valve Guide Clearance
• Valve Spring Strength
• Valve - Seat Inspection
• Cylinder Head - Distortion
• Cylinder Block Core Plug Replacement
• Spark Plug - Inspection
• Exhaust Manifold - Inspection