Nissan Silvia. Instruction — part 291

SEM164F

AEM080

Precautions

LIQUID GASKET APPLICATION PROCEDURE

NMLC0014

1.

Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from these areas.

2.

Apply a continuous bead of liquid gasket to mating surfaces.
(Use Genuine Liquid Gasket or equivalent.)

I

For oil pan, be sure liquid gasket diameter is 4.0 to 5.0 mm
(0.157 to 0.197 in).

I

For areas except oil pan, be sure liquid gasket diameter is 2.0
to 3.0 mm (0.079 to 0.118 in).

3.

Apply liquid gasket around the inner side of bolt holes (unless
otherwise specified).

4.

Assembly should be done within 5 minutes after coating.

5.

Wait at least 30 minutes before refilling engine oil and engine
coolant.

Preparation

SPECIAL SERVICE TOOL

NMLC0015

Tool number
Tool name

Description

EG17650301
Radiator cap tester
adapter

NT564

Adapting radiator cap tester to radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)

KV99103510
Radiator plate pliers A

NT224

Installing radiator upper and lower tanks

KV99103520
Radiator plate pliers B

NT225

Removing radiator upper and lower tanks

GI

MA

EM

EC

FE

CL

MT

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

ENGINE COOLING SYSTEM

Precautions

LC-9

Cooling Circuit

NMLC0016

SLC404B

System Check

NMLC0017

WARNING:

Never remove the radiator cap when the engine is hot. Serious
burns could occur from high pressure coolant escaping from
the radiator.
Wrap a thick cloth around the cap. Slowly turn it a quarter turn
to allow built-up pressure to escape. Carefully remove the cap
by turning it all the way.

CHECKING COOLING SYSTEM HOSES

NMLC0017S01

Check hoses for the following:

I

Improper attachment

I

Leaks

I

Cracks

I

Damage

I

Loose connections

I

Chafing

I

Deterioration

ENGINE COOLING SYSTEM

Cooling Circuit

LC-10

SLC756AA

CHECKING COOLING SYSTEM FOR LEAKS

NMLC0017S02

To check for leakage, apply pressure to the cooling system with a
tester.

Testing pressure:

157 kPa (1.6 kg/cm

2

, 23 psi)

CAUTION:

Higher pressure than specified may cause radiator damage.

CHECKING RADIATOR

NMLC0017S04

Check radiator for mud or clogging. If necessary, clean radiator as
follows.

I

Be careful not to bend or damage the radiator fins.

I

When radiator is cleaned without removal, remove all sur-
rounding parts such as cooling fan, rediator shroud and horns.
Then tape the harness and connectors to prevent water from
entering.

1.

Apply water by hose to the back side of the radiator core ver-
tically download.

2.

Apply water again to all radiator core surfaces once per
minute.

3.

Stop washing if any stains no longer flow out from the radia-
tor.

4.

Blow air into the back side of radiator core vertically download.

I

Use compressesd air lower than 490 kPa (5 kg/cm

2

, 71 psi)

and keep distance more than 30 cm (11.8 in).

5.

Blow air again into all the radiator core surfaces once per
minute until no water sprays out.

SLC613-A

CHECKING RADIATOR CAP

NMLC0017S03

To check radiator cap, apply pressure to cap with a tester.

Radiator cap relief pressure:

Standard

78 - 98 kPa (0.8 - 1.0 kg/cm

2

, 11 - 14 psi)

Limit

59 - 98 kPa (0.6 - 1.0 kg/cm

2

, 9 - 14 psi)

SMA967B

Pull the negative pressure valve to open it.
Check that it closes completely when released.

GI

MA

EM

EC

FE

CL

MT

AT

PD

AX

SU

BR

ST

RS

BT

HA

SC

EL

IDX

ENGINE COOLING SYSTEM

System Check (Cont’d)

LC-11

SLC409B

Water Pump

REMOVAL

NMLC0018

1.

Drain coolant from cylinder block and radiator.

2.

Remove fan coupling with fan.

3.

Remove power steering pump drive belt, alternator drive belt
and air compressor drive belt.

4.

Remove water pump.

CAUTION:

I

When removing water pump assembly, be careful not to
get coolant on drive belt.

I

Water pump cannot be disassembled and should be
replaced as a unit.

I

After installing water pump, connect hose and clamp
securely, then check for leaks using radiator cap tester.

SLC976A

INSPECTION

NMLC0019

I

Check body assembly for rust or corrosion.

I

Check for rough operation due to excessive end play.

SLC977A

INSTALLATION

NMLC0020

1.

Use a scraper to remove liquid gasket from water pump.

I

Also remove traces of liquid gasket from mating surface
of cylinder block.

SLC978A

2.

Apply a continuous bead of liquid gasket to mating surface of
water pump.

I

Use Genuine Liquid Gasket or equivalent.

When filling radiator with coolant, refer to LC-15, “Changing
Engine Coolant”.
When installing drive belts, refer to EM-16, “Checking”.

ENGINE COOLING SYSTEM

Water Pump

LC-12