water pump TOYOTA LAND CRUISER 1986 Factory Repair Manual

CO0IZ-01
CO1242
Radiator Cap Tester
Radiator Cap
30° or More
B04467
Radiator Cap Tester
- COOLINGRADIATOR
CO-15
1776 Author
: Date
:
2004 LAND CRUISER (RM1071U)
ON-VEHICLE INSPECTION
1. REMOVE RADIATOR CAP
CAUTION:
To avoid the danger of being burned, do not remove the ra-
diator cap while the engine and radiator are still hot, as fluid
and steam can be blown out under pressure.
2. INSPECT RADIATOR CAP
NOTICE:

If the radiator cap has contaminations, always rinse
it with water.

Before using a radiator cap tester, wet the relief valve
and pressure valve with engine coolant or water.

When performing steps (a) and (b) below, keep the
tester at an angle of over 30° above the horizontal.
(a) Using a radiator cap tester, slowly pump the tester and
check that air is coming from the vacuum valve.
Pump speed: 1 push/(3 seconds or more)
NOTICE:
Push the pump at a constant speed.
If air is not coming from the vacuum valve, replace the radiator
cap.
(b) Pump the radiator cap tester, and measure the relief valve
opening pressure.
Pump speed: 1 push within 1 second
NOTICE:
This pump speed is for the first pump only (in order to close
the vacuum valve). After this, the pump speed can be re-
duced.
Standard opening pressure:
93 - 123 kPa (0.95 - 1.25 kgf/cm
2, 13.5 - 17.8 psi)
Minimum opening pressure:
78 kPa (0.8 kgf/cm
2, 11.4 psi)
HINT:
Use the tester's maximum reading as the opening pressure.
If the opening pressure is less than minimum, replace the radia-
tor cap.
3. INSPECT COOLING SYSTEM FOR LEAKS
(a) Fill the radiator with coolant and attach a radiator cap tes-
ter.
(b) Warm up the engine.
(c) Pump it to 118 kPa (1.2 kgf/cm
2, 17.1 psi), and check that
the pressure does not drop.
If the pressure drops, check the hoses, radiator or water pump
for leaks. If no external leaks are found, check the heater core,
cylinder block and head.
4. REINSTALL RADIATOR CAP

CO0IQ-06
A09750
P/S Air HoseRadiator
Reservoir Tank
Intake Air
Connector
Radiator Assembly
EVAP HoseV-Bank Cover
Engine Under Cover No.1
N´m (kgf´cm, ft´lbf) : Specified torque Generator
Drive Belt
A/C CompressorA/C Compressor
Connector
A/T Oil Cooler Hose
Fan with
Fluid Coupling
Fan Pulley
49 (500, 36)
5.0 (50, 43 in.´lbf)
18 (185, 13)
Air Hose
x 8Fan Shroud Fuel Return
Hose
20 (200, 15)
A/T Oil Cooler
Hose
A/C Discharge
Tube
Clamp
Bracket WireClamp
Clamp
Lower Radiator Hose
Bracket
- COOLINGWATER PUMP
CO-3
1764 Author
: Date
:
2004 LAND CRUISER (RM1071U)
WATER PUMP
COMPONENTS

B04470
RH No.3 Timing Belt Cover
LH No.3 Timing Belt CoverNo.2 Timing Belt Cover
Camshaft Position
Sensor Connector
Engine Wire
Oil Cooler Pipe
Timing Belt
Fan Bracket Drive Belt Timing Pulley
Timing Belt Tensioner Dust Boot
N´m (kgf´cm, ft´lbf) : Specified torqueCover Plate
7.5 (80, 66 in.´lbf)
16 (160, 12)
39 (400,29)
245 (2,500, 181)
32 (330, 24)
16 (160, 12)
7.5 (80, 66 in.´lbf)
Water Bypass
Hose
CO-4
- COOLINGWATER PUMP
1765 Author
: Date
:
2004 LAND CRUISER (RM1071U)

B04471
Generator Wire
Generator Connector
Wire Clamp
Generator
Crankshaft PulleyDrive Belt Tensioner
No.1 Timing Belt Cover
Timing Belt
Timing Belt Guide
(Crankshaft Angle Sensor Plate)No.2 Idler Pulley
Timing Belt Cover SpacerGasket
N´m (kgf´cm, ft´lbf) : Specified torque

Non-reusable partWater Inlet Housing
Assembly
Water Pump
O-Ring

Gasket
O-Ring
39 (400, 29)
34.5 (350, 25)
18 (185, 13)
21 (215, 15)
- COOLINGWATER PUMP
CO-5
1766 Author
: Date
:
2004 LAND CRUISER (RM1071U)

CO0IS-01
B04067Air HoleWa t e r
Hole
- COOLINGWATER PUMP
CO-7
1768 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSPECTION
1. INSPECT WATER PUMP
(a) Visually check the air hole and water hole for coolant leak-
age.
If leakage is found, replace the water pump and timing belt.
(b) Turn the pulley, and check that the water pump bearing
moves smoothly and quietly.
If necessary, replace the water pump.
2. INSPECT TIMING BELT COMPONENTS
(See page EM-20)

CO0IT-01
B04463
Connect
New O-Ring
B03030
Seal Width
2 - 3 mm
New O-Ring
CO-8
- COOLINGWATER PUMP
1769 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL WATER PUMP
(a) Install a new O-ring to the water bypass pipe end.
(b) Apply soapy water to the O-ring.
(c) Connect the water pump to the water bypass pipe end.
(d) Install the water pump and new gasket with the 5 bolts, 2
stud bolts and nut. Uniformly tighten the bolts, stud bolts
and nut in several passes.
Torque:
Bolt: 21 N´m (215 kgf´cm, 15 ft´lbf)
Stud bolt and nut: 18 N´m (185 kgf´cm, 13 ft´lbf)
HINT:
Use bolts 35 mm (1.38 in.) in length.
2. INSTALL WATER INLET AND INLET HOUSING AS-
SEMBLY
(a) Remove any old packing (FIPG) material and be careful
not to drop any oil on the contact surfaces of the water in-
let housing and water pump.

Using a razor blade and gasket scraper, remove all
the old packing (FIPG) material from the gasket sur-
faces and sealing groove.

Thoroughly clean all components to remove all the
loose material.

Using a non-residue solvent, clean both sealing
surfaces.
(b) Apply seal packing to the sealing groove of water inlet
housing as shown in the illustration.
Seal packing: Part No. 08826-00100 or equivalent

Install a nozzle that has been cut to a 2 - 3 mm (0.08
- 0.12 in.) opening.

Parts must be assembled within 5 minutes of ap-
plication. Otherwise the material must be removed
and reapplied.

Immediately remove nozzle from the tube and rein-
stall cap.
(c) Install a new O-ring to the water inlet housing.
(d) Apply soapy water on the O-ring.
(e) Attach the water inlet housing end to the front water by-
pass joint hole.

B04460
AB
- COOLINGWATER PUMP
CO-9
1770 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(f) Install the water inlet and housing assembly with the 2
bolts. Alternately tighten the bolts.
Torque: 18 N´m (185 kgf´cm, 13 ft´lbf)
HINT:
Each bolt length is indicated in the illustration.
Bolt length:
76 mm (3.00 in.) for A
22 mm (0.87 in.) for B
3. INSTALL NO.2 IDLER PULLEY (See page EM-22)
4. INSTALL TIMING BELT (See page EM-22)
5. FILL WITH ENGINE COOLANT
6. START ENGINE AND CHECK FOR ENGINE COOLANT
LEAKS
7. RECHECK ENGINE COOLANT LEVEL

CO0IR-01
B04460
B04461
CO-6
- COOLINGWATER PUMP
1767 Author
: Date
:
2004 LAND CRUISER (RM1071U)
REMOVAL
1. DRAIN ENGINE COOLANT
2. REMOVE TIMING BELT (See page EM-15)
3. REMOVE NO.2 IDLER PULLEY (See page EM-15)
4. REMOVE WATER INLET AND INLET HOUSING AS-
SEMBLY
(a) Disconnect the water bypass hose from the water inlet
housing.
(b) Remove the 2 bolts holding the water inlet housing to the
water pump.
(c) Disconnect the water inlet housing from the front water
bypass joint, and remove the water inlet and inlet housing
assembly.
(d) Remove the O-ring from the water inlet housing.
5. REMOVE WATER PUMP
(a) Remove the 5 bolts, 2 stud bolts, nut, water pump and
gasket.
(b) Remove the O-ring from the water bypass pipe.

EM0E9-15
A05111
Engine Mounting Bracket
Oil Pump
Crankshaft
Front Oil
Seal
Crankshaft Position
Sensor Connector
No.1 Oil Pan
Drain Plug
 Non-reusable part

Precoated partEngine Wire
Oil StrainerEngine
Mounting
BracketStarter
Cable
Knock
Sensor 2
Connector Knock
Sensor 1Knock
Sensor 2
Engine Coolant Drain UnionStarter
No.2 Oil Pan Oil Pan Baffle Platex 8 Water Pump
 Gasket  O-Ring
Engine
Wire
Engine
Wire
CoverKnock
Sensor 1
Connector Engine Coolant
Drain Union
45 (450, 33)
36 (370, 27)
30.5 (310, 22)
15.5 (160, 11)
28 (290, 31)
x 5
Oil Pressure
Sender Gauge
Connector
7.5 (80, 66 in.´lbf)
7.5 (80, 66 in.´lbf)
7.5 (80, 66 in.´lbf)
N´m (kgf´cm, ft´lbf) : Specified torque 


x 20
Ground
Cable
Clamp
Engine Wire
Protector
 Tape
28 (290, 31)
 Gasket
7.5 (80, 66 in.´lbf)
28 (290, 31)
7.5 (80, 66 in.´lbf)
Water Bypass Pipe
Oil Cooler Pipe
Bracket for A/T
7.5 (80, 66 in.´lbf)
 O-Ring
Starter
Connector
 Gasket
EM-86
- ENGINE MECHANICALCYLINDER BLOCK
1659 Author
: Date
:
2004 LAND CRUISER (RM1071U)
CYLINDER BLOCK
COMPONENTS

EM0L6-03
A05112
Pull
Wire
Clamp
O-Ring
A05110
LH Side
A05109
RH Side EM-88
- ENGINE MECHANICALCYLINDER BLOCK
1661 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DISASSEMBLY
1. INSTALL ENGINE TO ENGINE STAND
2. REMOVE TIMING BELT AND PULLEYS
(See page EM-15)
3. REMOVE CYLINDER HEAD (See page EM-35)
4. REMOVE WATER BYPASS PIPE
(a) Disconnect the wire clamp (for knock sensor 1, 2) from the
bracket of the water bypass pipe.
(b) Remove the bolt.
(c) Pull out the water bypass pipe from the water pump.
(d) Remove the O-ring from the water bypass pipe.
5. REMOVE STARTER (See page ST-5)
6. REMOVE KNOCK SENSORS (See page SF-55)
7. DISCONNECT ENGINE WIRE FROM LH SIDE OF CYL-
INDER BLOCK
(a) Remove the 2 bolts and the engine wire cover from the LH
side of the cylinder block.
(b) Remove the bolt, disconnect the bracket on the engine
wire from the cylinder block.
8. DISCONNECT ENGINE WIRE FROM RH SIDE OF CYL-
INDER BLOCK
Remove the 2 bolts, and disconnect the 2 brackets on the en-
gine wire from the cylinder block.
9. REMOVE OIL COOLER PIPE BRACKET FOR A/T
Remove the bolt and bracket.
10. REMOVE ENGINE MOUNTING BRACKETS
Remove the 4 bolts and the mounting bracket. Remove the 2
mounting brackets
11. REMOVE WATER PUMP (See page CO-6)
12. REMOVE NO.2 OIL PAN (See page LU-8)
13. REMOVE OIL PAN BAFFLE PLATE
14. REMOVE NO.1 OIL PAN (See page LU-8)
15. REMOVE OIL STRAINER
16. REMOVE OIL PUMP (See page LU-8)
17. REMOVE ENGINE COOLANT DRAIN UNIONS
Remove the 2 drain unions.