Renault J8S User Manual

Workshop repair manual
ENGINE (Diesel)
Indirect injection
Aluminium, 4 cylinders
Types Vehicles
852
J8S
Renault 18
Fuego
Renault 20
Renault 21
Renault 25
Renault 30
Safrane
Espace
Trafic
Master
Jeep
Cancels and replaces note dated JULY 1991
77 11 293 322
"The repair methods given by the manufacturer in this document are based on the
technical specifications current when it was prepared.
The methods may be modified as a result of changes introduced by the manufacturer
in the production of the various component units and accessories from which his
vehicles are constructed."
DECEMBER 2000
All copyrights reserved by Renault.
EDITION ANGLAISE
Copying or translating, in part or in full, of this document or use of the service part
reference numbering system is forbidden without the prior written authority of Renault.
© RENAULT 2000

Renault J8S Specifications

General

Brand	Renault
Model	J8S
Category	Engine
Language	English

Summary

Engine and Peripherals

Foreword

Introduction to the manual's structure and usage guidelines.

Diagram

Illustrations of engine configurations.

Engine Identification

Details on identifying engine types, codes, and specifications.

Tightening Torques

Torque specifications for various engine components.

Lubrication Circuit Diagram

Diagram of the engine's lubrication system.

Specifications

Detailed technical specifications for engine components.

Standard Exchange

Procedure for preparing a used engine for return.

Essential Special Tooling

List of essential tools required for engine maintenance.

Essential Equipment

Specialized equipment needed for engine repair tasks.

Cylinder Head Exploded Drawing

Exploded view of the cylinder head components.

Overhauling the Engine

Comprehensive guide to engine disassembly, repair, and reassembly.

Tensioning Procedure

Procedure for tensioning accessory belts.

Notes on Fitting Accessory Belts

Instructions for fitting and tensioning accessory belts.

Overhauling the Engine

Removing the Top Engine

Procedure for removing the upper part of the engine.

Adjusting the Timing

Steps for setting the engine's timing correctly.

Stripping the Cylinder Head

Disassembly of the cylinder head components.

Cleaning

Process for cleaning engine components.

Checking the Gasket Face

Procedure to check cylinder head gasket face flatness.

Redressing the Valve Seats

Instructions for grinding and correcting valve seats.

Assessment and Repair of Rocker Arm Rails

Checking and repairing rocker arm rails and filters.

Rebuilding the Cylinder Head

Process for rebuilding the cylinder head with new parts.

Cylinder Block Exploded Drawing

Exploded diagram of the cylinder block components.

Removing the Bottom Engine

Procedure for removing the lower part of the engine.

Extracting Crankshaft Bearings 1 and 5

Procedure for extracting crankshaft bearings 1 and 5.

Replacing the Bearing

Notes on replacing crankshaft bearings.

Extracting the Con Rods - Pistons

Procedure for removing con rods and pistons.

Refitting the Bottom Engine

Procedure for refitting the lower part of the engine.

Checking Piston Protrusion

Procedure for checking piston protrusion.

Assessment and Repair of the Oil Pump

Assessment and repair procedures for the oil pump.

Refitting the Oil Pump

Procedure for refitting the oil pump.

Refitting the Relay Shaft

Procedure for refitting the relay shaft.

Fitting the Crankshaft Seals

Procedure for fitting crankshaft oil seals.

Refitting the Sump

Procedure for refitting the engine sump.

Fitting the Flywheel

Procedure for fitting the engine flywheel.

Refitting the Top Engine

Procedure for refitting the upper part of the engine.

Positioning the Cylinder Head Gasket

Procedure for positioning the cylinder head gasket.

Tightening Procedure for Cylinder Head

Steps for tightening cylinder head bolts.

Checking the Piston-Cylinder Head Clearances

Checking clearances between piston and cylinder head.

Checking the Piston-Valve Clearances

Measuring piston-valve clearances using dial gauge.

Value of the Piston-Cylinder Head Clearances

Calculating piston-cylinder head clearances.

Fitting the Camshaft Seal (Timing Side)

Procedure for fitting camshaft seal on the timing side.

Adjusting the Rocker Arms

Procedure for adjusting engine rocker arms.

Setting the Timing

Procedure for setting engine timing.

Injection Pump Setting

Procedure for setting the injection pump timing.