AMC 4.2L 258 CID User Manual

Name: AMC 4.2L 258 CID
Brand: AMC
Rating: 5 (1 reviews)

66 pages

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Contents3
Torque Specifications4
Cylinder Head Installation5
Filing Information5
General Description7
Engne Identification Information7
Cylinder Head Assembly Components8
Cylinder Head Components9
Cylinder Block Components12
General Information14
Engine Identification14
Build Date Code14
Code Letter Explanation14
Oversize or Undersize Components15
Oversize or Undersize Code Component Letter Explanation15
Special Tools16
Engine Specifications22
Cylinder Head Disassembly26
Intake Manifold Removal26
Exhaust Manifold Removal26
Cylinder Head Cover Removal27
Cylinder Head Removal28
Hydraulic Valve Tappet Removal29
Cleaning and Inspection29
Valve Removal29
Valve Refacing30
Valve Seat Refacing30
Valve Stem Oil Deflector Replacement31
Valve Guide Replacement31
Valve Stem-To-Guide Clearance Measurement31
Preferred Method31
Valve Spring Tension Test32
Alternate Method32
Hydraulic Valve Tappet Disassembly33
Hydraulic Valve Tappet Assembly33
Water Pump Removal34
Vibration Damper Removal34
Timing Case Cover Removal34
Camshaft Removal34
Oil Pan Removal35
Oil Pump Removal35
Lubrication System Components36
Oil Pump Gear End Clearance Measurement38
Oil Pump Gear-To-Body Clearance Measurement39
Oil Pump Assembly39
Connecting Rod and Piston Removal40
Crankshaft Removal40
Cylinder Bore Measurement41
Cylinder Bore Resurfacing41
Cylinder Block Assembly42
Piston Pin Removal42
Piston Pin Inspection42
Piston Pin Installation42
Piston Fitting - Micrometer Method43
Feeler Gauge Method43
Piston Ring Fitting44
Piston Ring Side Clearance Measurements44
Piston Ring Installation45
Crankshaft Installation46
Crankshaft End Play Measurement46
Main Bearing Description47
Bearing Insert Pairs47
Main Bearing-To-Journal Clearance Measurement47
Main Bearing Journal Diameter Measurement48
Main Bearing Fitting Chart49
Rear Main Bearing Oil Seal Installation50
Connecting Rod Installation51
Connecting Rod Bearings52
Connecting Rod Bearing Inspection52
Connecting Rod Bearing Installation52
Connecting Rod Bearing-To-Journal Clearance Measurement53
Side Clearance Measurement54
Connecting Rod Bearing Fitting Chart55
Oil Pump Installation56
Camshaft Bearing Description57
Camshaft Installation57
Timing Case Cover Installation58
Oil Pan Installation59
Water Pump Installation60
Fuel Pump Installation60
Vibration Damper Installation60
Valve Installation60
Hydraulic Valve Tappet Leak-Down Test61
Hydraulic Valve Tappet Installation62
Cylinder Head Bolt Tightening Sequence63
Cylinder Head Cover Installation65
Intake Manifold Installation66
Exhaust Manifold Installation66

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AMC 4.2L 258 CID Specifications

General

Brand	AMC
Model	4.2L 258 CID
Category	Engine
Language	English

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Table of Contents

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AMC 4.2L 258 CID Specifications

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