2.17 Exhaust System JL4G15-D

2.17.1  4G15-D  Engine  Exhaust  System
Overview

Compared with 4G18-D, 4G15-D engine exhaust system has
the same content in Specification, Description and Operation,
the  System  Working  Principle,  Component  Locator,
Schematic, Removal and Installation. For specific information,
please  refer  to

2.3

 

Fuel  System  JL4G18-D

.  This  chapter

described  contents  are  different  from  4G18-D.  For  relevant
information. Refer to the following content.

Engine

Exhaust System JL4G15-D

2-835

2.17.1 Specifications
2.17.1.1 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 Retaining
Bolts

M12 × 1.25 × 28

28-42

20.7-31.1

Heat Shield Retaining Bolts

M8 × 25

14-22

10.4-16.3

Three-Way Catalytic Converter To
Front Muffler Retaining Nuts

M12 × 1.25 × 45

47-57

34.8-42.2

Three-Way Catalytic Converter To
Front Muffler Retaining Bolts

M12

47-57

34.8-42.2

Front and Rear Muffler Connecting
Bolts

M12 × 1.25 × 45

47-57

34.8-42.2

Front and Rear Muffler Connecting
Nuts

M12

47-57

34.8-42.2

2-836

Exhaust System JL4G15-D

Engine

2.18 Engine Cooling System JL4G15-D

2.18.1  4G15-D  Engine  Cooling  System
Overview

Compared with 4G18-D, 4G15-D engine cooling system has
the same content in Specification, Description and Operation,
the  System  Working  Principle,  Component  Locator,
Schematic, Removal and Installation. For specific information,
please  refer  to

2.3

 

Fuel  System  JL4G18-D

.  This  chapter

described  contents  are  different  from  4G18-D.  For  relevant
information. Refer to the following content.

Engine

Engine Cooling System JL4G15-D

2-837

2.18.1 Specifications
2.18.1.1 Cooling System Specifications

Applications

Specifications

Cooling Type

Coolant

Engine Coolant Specifications / Grades

Comply With SH0521 (Freezing Point 

≤-40°C /-40 ºF)

Engine Coolant Capacity (Coolant Recovery Reservoir)

6.0 L (10.6 pt)

Thermostat Type

Wax-Type Thermostat

Pump Type

Impeller

Blade Diameter

60 mm (2.36 in)

Blades

6

Thermostat Opening Temperature

82°C (179.6 ºF)

Thermostat Fully Open Temperature

95°C (203 ºF)

Low Speed Cooling Fan On Temperature

95°C (203 ºF)

Low Speed Cooling Fan Off Temperature

90°C (194 ºF)

High Speed Cooling Fan On Temperature

99°C (210.2 ºF)

High Speed Cooling Fan Off Temperature

95°C (203.0 ºF)

Low-Speed Fan Resistor

0.35 Ω

2-838

Engine Cooling System JL4G15-D

Engine