Name: Renault J8S
Brand: Renault
Rating: 4 (1 reviews)

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ENGINE AND PERIPHERALS

Engine identification

10-6

Engine Index Type

Compression

ratio

Bore

(in mm)

Stroke

(in mm)

Capacity

(in cm

)

J8S

610

612

702

706

711

712

736

740

760

772

776

778

J63D, S63D

J63E

1270

B296

1344 TA, 1354TA

1346, 1356, 1366

B296

X48, 6, V, V 4x4

B546

J635, S635

J634

J633

21.5/1 86 89 2068

J8S

784

800

814

X480

21.5/1 86 89 2068

Contents2
Units of Measurement3
Tolerances3
J8S Turbo Engine View4
J8S and 852 Engines View5
Engine Identification6
Tightening Torques (in Danm)9
Cylinder Block10
Lubrication Circuit Diagram16
Specifications18
Cylinder Head - Tightening Procedure18
Thickness of the Cylinder Head Gasket20
Cylinder Head Cover Gasket21
Height of the Cylinder Head22
Assembled Prechamber22
Bare Prechamber/Half-Prechamber23
Valves Data23
Valve Seats Data23
Valve Guides Data24
Valve Springs Data25
Camshaft Data25
Rocker Arm Rail25
Pistons26
Table of Piston Diameter Classes27
Table of Gudgeon Pin Heights27
Measuring the Piston Diameter27
Rings Data28
Fitting the Rings28
Con Rods Data29
Refitting and Assembling con Rods and Pistons29
Crankshaft Data30
Direction for Fitting the Circlips on the Piston30
Burnished Crankshaft31
Identification of Crankshafts31
Relay Shaft Data32
Piston Base Cooling Rail32
Clutch Shaft Centering Bearings32
Cylinder Liner Data33
Assembling Cylinder Liners - Cylinder Block33
Identification of Liners34
Oil Pump Removal/Checking Clearances36
Preparing the Engine to be Set on the Stand37
Safety Precautions When Stopping the Engine38
Consumables39
Precautions When Washing the Engine/Fitting Thread Inserts39
Parts to be Replaced When They Have Been Removed39
Standard Exchange40
Preparing the Used Engine for Return40
New Exchange Engine40
Essential Special Tooling41
Essential Equipment46
Cylinder Head Exploded Drawing47
Overhauling the Engine48
Removing the Top Engine48
Adjusting the Timing49
Stripping the Cylinder Head53
Cleaning56
Checking the Gasket Face56
Redressing the Valve Seats57
Asessment and Repair of Rocker Arm Rails58
Rocker Arm Shaft Bearings58
Rebuilding the Cylinder Head59
Rocker Arms59
Rocker Arm Shaft Bearings Refitting59
Fitting New Valve Stem Seals60
Cylinder Block Exploded Drawing67
Removing the Bottom Engine68
Extracting Crankshaft Bearings 1 and 574
Replacing the Bearing75
Refitting the Bearing75
Extracting the con Rods - Pistons76
Cylinder Block Cleaning76
Refitting the Bottom Engine77
Fitting the Crankshaft Bearing Shells80
Fitting the Crankshaft Bearings81
Fitting Butyl Rubber Seals81
Injecting with Silicone82
Refitting and Assembling Piston con Rods86
Fitting the Piston Rings87
Checking Cylinder Liner Protrusion87
Refitting Cylinder Liners - Pistons - con Rods88
Checking Piston Protrusion91
Checking the Oil Pump92
Refitting the Oil Pump93
Refitting the Relay Shaft94
Refitting the Oil Filter Holder95
Fitting the Relay Shaft Seal95
Fitting the Crankshaft Seals95
Refitting the Sump96
Fitting the Flywheel99
Refitting the Top Engine100
Positioning the Cylinder Head Gasket100
Tightening Procedure for Cylinder Head100
Checking the Piston-Cylinder Head Clearances101
Value of the Piston-Cylinder Head Clearances102
Fitting the Camshaft Seal (Timing Side)103
Adjusting the Rocker Arms104
Setting the Timing105
Engine Fitted with an Automatic Tension Wheel107
Tensioning Procedure110
Injection Pump Setting112
Piston Lift on the Dial Guage - Table113
Notes on Fitting Accessories Belts116
Tensioning Procedure for Used Belts116
Ribbed Belt - Tensioning Procedure116

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Renault J8S Specifications

General

Brand	Renault
Model	J8S
Category	Engine
Language	English

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