Mazda 6. Manual — part 14

D–12

LUBRICATION SYSTEM

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OIL JET VALVE

A6E333010730T01

Structure

•

The oil jet valves are installed in the cylinder block (in the main journal). The piston cooling efficiency by oil
injected from the nozzles has been improved by the attachment direction of the oil jet valves which are pointed
toward the back surface of each piston.

•

The oil jet valves have been designed to maintain optimum oil pressure in the engine by controlling the oil
injection of the oil according to the oil pressure on the oil jet valve.

.

AME3300N014

1

Oil jet valve

2

Cylinder block

3

Crankshaft

LUBRICATION SYSTEM

D–13

D

Operation

•

Oil pressure applied to the check-ball in the oil jet valve opens and closes the oil passage way to the nozzle
and controls oil injection start and stop.

•

Oil pressure greater than the specified value applied to the check-ball in the oil jet valve opens the oil passage
to the spring-pressed nozzle, starting injection. Conversely, oil pressure less than the specified value applied to
the check-ball blocks the jet valve by spring force, stopping injection.

.

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AME3300N015

1

Nozzle

2

Oil jet valve body

3

Spring

4

Oil

5

Oil passage

6

Check ball

E–1

E

E

COOLING SYSTEM

ABBREVIATIONS . . . . . . . . . . . . .. E-2

ABBREVIATIONS . . . . . . . . . . . . E-2

OUTLINE . . . . . . . . . . . . . . . . E-2

OUTLINE OF CONSTRUCTION. . . . . . .. E-2
FEATURES . . . . . . . . . . . . . . .. E-2
SPECIFICATIONS . . . . . . . . . . . ... E-2

COOLING SYSTEM. . . . . . . . . . . . E-3

STRUCTURAL VIEW. . . . . . . . . . ... E-3
COOLING FLOW DIAGRAM . . . . . . . ... E-4
RADIATOR. . . . . . . . . . . . . . ... E-5
COOLING FAN . . . . . . . . . . . . . E-5
RADIATOR COWLING, COOLANT RESERVOIR

TANK. . . . . . . . . . . . . . . . . E-6

THERMOSTAT . . . . . . . . . . . . . E-6
WATER PUMP. . . . . . . . . . . . . . E-7

E–2

ABBREVIATIONS , OUTLINE

ABBREVIATIONS

A6E360102000T01

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OUTLINE OF CONSTRUCTION

A6E360201004T01

•

L8, LF and L3 engine models are water cooled by forced circulation cooling systems.

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FEATURES

A6E360201004T02

Reduced weight and size

•

Cross-flow type radiator with radiator tanks made of plastic and the core made of aluminum.

•

Stainless steel thermostat body is built in the plastic thermostat case

•

Built-in type water pump

Reduce engine noise and vibration

•

The cooling fan is a thermo modulator system type.

•

Electric cooling fan has been adopted.

Improved reliability

•

The following have been adopted.
— Thermostat of highly durable wax type.
— Water pump that is built into cylinder block

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SPECIFICATIONS

A6E360201004T03

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ABBREVIATIONS

ATF

Automatic transaxle fluid

ATX

Automatic transaxle

OUTLINE

Item

Engine type

L8

LF

L3

Cooling system

Water-cooled, Electromotive

Coolant capacity
(Approximate quantity)

(L {US qt, lmp qt})

7.5 {7.9, 6.6}

Water pump Type

Centrifugal, V-ribbed belt-driven

Thermostat

Type

Wax

Opening temperature

(

°

C {

°

F})

80.0—84.0 {176—183.2}

Full-open temperature

(

°

C {

°

F})

97 {206.6}

Full-open lift

(mm {in})

More then 8.0 {0.31} min.

Radiator

Type

Corrugated fin

Cap valve opening
pressure

(kPa {kgf/cm

2

, psi})

112.8—142.2 {1.15—1.45, 16.4—20.6}

Cooling fan

Type

Thermo-modulated, Electromotive

Blade

Outer
diameter

(mm {in})

300 {11.8}

300 {11.8}

320 {12.6}

Quantity

Cooling fan No.1: 5
Cooling fan No.2: 7

(Except for

Israel)

Cooling fan

No.1: 5

Cooling fan

No.2: 7

(For Israel)

Cooling fan

No.1: 7

Cooling fan

No.2: 5

Cooling fan No.1: 7
Cooling fan No.2: 5