Engine distributors DSG-423 - Dsg-423 General Information Index 01; Table of Contents

DSG-423 GENERAL INFORMATION
01-1
INDEX
Subject Page
General Information
Introduction ............................................................................................................................................... 01 - 3
Safety Notice ............................................................................................................................................. 01 - 3
Notes, Cautions, and Warnings................................................................................................................. 01 - 3
Battery Handling and Charging ................................................................................................................. 01 - 4
Forward ..................................................................................................................................................... 01 - 5
Engine Identification .................................................................................................................................. 01 - 5
Parts and Service ...................................................................................................................................... 01 - 5
Description and Operation......................................................................................................................... 01 - 5
Diagnosis and Testing
Special Tools............................................................................................................................................. 01 - 6
Inspection and Verification ........................................................................................................................ 01 - 7
Symptom Chart ......................................................................................................................................... 01 - 7
PCV System Malfunction......................................................................................................................... 01 - 10
Engine Oil Leaks ..................................................................................................................................... 01 - 10
Compression Tests ................................................................................................................................. 01 - 12
Cylinder Leakage Detection .................................................................................................................... 01 - 13
Intake Manifold Vacuum Test.................................................................................................................. 01 - 13
Excessive Engine Oil Consumption ........................................................................................................ 01 - 15
Oil Pressure Test..................................................................................................................................... 01 - 16
Valve Train Analysis – Static................................................................................................................... 01 - 17
Valve Train Analysis – Dynamic.............................................................................................................. 01 - 17
Camshaft Lobe Lift .................................................................................................................................. 01 - 18
Hydraulic Valve Lash Adjuster ................................................................................................................ 01 - 20
General Service Procedures
Camshaft Journal Diameter..................................................................................................................... 01 - 21
Camshaft Journal Clearance................................................................................................................... 01 - 21
Camshaft Lobe Surface........................................................................................................................... 01 - 21
Camshaft Lobe Lift .................................................................................................................................. 01 - 22
Camshaft Runout .................................................................................................................................... 01 - 22
Camshaft End Play.................................................................................................................................. 01 - 22
Crankshaft Main Bearing Journal Diameter ............................................................................................ 01 - 23
Crankshaft Main Bearing Journal Taper.................................................................................................. 01 - 23
Crankshaft Main Bearing Journal Clearance........................................................................................... 01 - 24
Bearing Inspection .................................................................................................................................. 01 - 24
Crankshaft End Play................................................................................................................................ 01 - 25
Crankshaft Runout .................................................................................................................................. 01 - 25
Cylinder Bore Taper ................................................................................................................................ 01 - 25
Cylinder Bore Out-of-Round.................................................................................................................... 01 - 26
Piston Inspection..................................................................................................................................... 01 - 26
Piston Diameter....................................................................................................................................... 01 - 26
Piston to Cylinder Bore Clearance .......................................................................................................... 01 - 26
Piston Selection ...................................................................................................................................... 01 - 27
Piston Ring End Gap............................................................................................................................... 01 - 27
Piston Ring-to-Groove Clearance ........................................................................................................... 01 - 28
Crankshaft Connecting Rod Journal Diameter........................................................................................ 01 - 28
Crankshaft Connecting Rod Journal Taper............................................................................................. 01 - 28
Connecting Rod Cleaning ....................................................................................................................... 01 - 28
Connecting Rod Larger End Bore ........................................................................................................... 01 - 29
Piston Pin Diameter................................................................................................................................. 01 - 29
Connecting Rod Bushing Diameter ......................................................................................................... 01 - 29
Connecting Rod Bend ............................................................................................................................. 01 - 29
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