Serial

Number

Illustration

Tool Number

Description

5

FE01-2018b

GT301-013

Crankshaft Front Oil Seal Installation

Tool

6

FE01-2019b

GT301-015

Crankshaft Rear Oil Seal Installation

Tool

7

FE01-2020b

GT301-016

Piston Pin Removal Tool

8

FE01-2022b

GT301-018

Camshaft Locking Tool

9

FE01-2029b

GT301-020

Crankshaft Drive Belt Locking Tool

Engine

Engine Mechanical System JL4G18-D

2-427

Serial

Number

Illustration

Tool Number

Description

10

FE01-2023b

GT301-021

Flywheel Locking Tool

11

FE01-2024b

GT301-022

Timing Chain Locking Tool

2-428

Engine Mechanical System JL4G18-D

Engine

2.7 Exhaust System JL4G18-D

2.7.1 Specifications
2.7.1.1 Fastener Tightening Specifications

Applications

Model

Specifications

Metric (Nm)

US English (lb-ft)

Exhaust Manifold Retaining Nut

M8

20-30

14.8-22.2

Exhaust Manifold Bracket Bolts

M12 × 1.25 × 28

28-42

20.7-31.1

Heat Insulator Bolts

M8 × 25

14-22

10.4-16.3

Three-Way Catalytic Converter and
Exhaust Manifold Connecting Bolts

M10 × 1.25 × 65

35-45

25.8-33.2

Three-Way Catalytic Converter With
Front Muffler Connecting Bolt

M12 × 1.25 × 45

47-57

34.8-42.2

Three-Way Catalytic Converter With
Front Muffler Connection Nut

M12

47-57

34.8-42.2

Front and Rear Muffler Connecting
Bolt

M12 × 1.25 × 45

47-57

34.8-42.2

Front and Rear Muffler Connection
Nut

M12

47-57

34.8-42.2

Engine

Exhaust System JL4G18-D

2-429

2.7.2 Description and Operation
2.7.2.1 Exhaust Manifold

Exhaust manifold used in this engine is a monolithic four-port
manifold, which can be removed from the rear. The function of
exhaust manifold is to exhaust gases after combustion with the
minimum  back-pressure.  Pre-Oxygen  sensors  (HO

2

S)  are

installed in the three-way catalytic converter front end.

2.7.2.2 Three-Way Catalytic Converter

Three-Way catalytic converter is similar to the appearance of
the muffler, however, inside the stainless steel shell there is
honeycomb-like  ceramic  substrate  in  the  direction  of  the
exhaust gas. Ceramic liner carriers have been surrounded by
the liner, which is used to retain the ceramic carrier and prevent
any contact or collision. Each end of the converter has a mesh
seals to prevent air pollution and the pad corrosion.

2-430

Exhaust System JL4G18-D

Engine