Mitsubishi Heavy Industries BD2G Manual de usuario

SERVICE

MANUAL

·.MITSUBISHI

DIESEL

ENGINE

for

BD2G/BS3G

CONTENTS

• CONSTRUCTION AND FUNCTION

• SPECIALTOOLS

• MAINTENANCE STANDARDS

• DISASSEMBLY AND REASSEMBLY

DEFINITION

TERMS

In this manual,

the

following

terms

are

used

the

dimensional and

other

specifications:

NOMINAL

VALUE

Indicates

part.

the

standard

dimension

ASSEMBLY STANDARD

......

Indicates

the

dimension

part,

the

dimension

attained

the

time

reassembly

the

standard

performance.

Its

value

is rounded

the

nearest

whole

number

needed

for

inspection

and is

different

from

the

design

value.

STANDARD CLEARANCE

....

Indicates

the

clearance

between

mating

parts

the

reassem

bly.

obtained

time

REPAIR LIMIT

.............

part

which has

reached

this

limit

must

repaired.

SERVICE

LIMIT

.............

part

which has

reached

this

limit

must

replaced

-,.-

TABLE

CONTENTS

Group Contents Group No.

External views, Sectional views,

Engine

serial

number

location,

General Engine model and application codes, Specifications, Tips on I

disassembly and reassembly

Maintenance

standards

Maintenance standards, Tightening torque, Sealants 2 •

Special tools Special tool list 3 •

Overhaul

instructions Determining when to overhaul the engine, Testing the 4

compression

pressure

•

Adjustments, bench test, 5

performance tests

Engine

accessory

removal

and

Removal

and

installation

fuel

injection

pump,

alternator)

installation starter, etc. •

Disassembly, inspection and reassembly

engine proper:

Engine proper Cylinder head,

valve

mechanism, flywheel, timing gears, 7

camshaft, pistons, connecting

rods,

crankshaft,

crankcase

Intake and exhaust systems Inspection

exhaust manifold 8 •

Disassembly, inspection and reassembly

lubrication

Lubrication

system system: 9

Oil pump, oil mter, reliefvalve •

Cooling system Disassembly, inspection

and

reassembly

cooling

system:

Water pump, thermostat. fan, fan belt •

Workshop theory Precautions for disassembly and reassembly

general parts.

Oil

seals. O-rings, bearings, lock plates, pins I

GENERAL

............................................................

1.1

S4E2 diesel engine -External views

......................................

1.2 S4E2 diesel engine -Sectional views

......................................

. 4

1.3 Engine serial number location

...........................................

. 6

1.4 Engine model and application codes

......................................

. 6

2. SPECIFICATIONS

........................................................

. 7

3. TIPS ON DISASSEMBLY AND REASSEMBLY

................................

. 10

3.1 Disassembly

.........................................................

. 10

3.2 Reassembly

.........................................................

. 10

GENERAL

1.1 S4E2

diesel

engine

External

views

Fuel

filter

Fan

Water

pump

Fuel

injection

pump

Fuel

feed

pump

Fan

belt

(j)

Intake

manifold

Stop

solenoid

Governor

(j])

Flyw

heel

(j])

Starter

Left-hand

side

view

402884

Exhaust

manifold

® Oil

filter

Alternator

P.T.O.

Gear

Right-hand

side

view

GENERAL

402885

GENERAL

1.2 S4E2

diesel

engine -

Sectional

views

Rocker arm

® Piston

® Compression ring

@Oil

ring

® Connecting rod

® Camshaft

(j) Oil pump

@G!ow

plug

® Fuel

injection

nozzle

Transverse view

402886

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