WATER PUMP
Cooling
5. Water Pump
S176061
8) Disconnect over flow hose.
A: REMOVAL
S176061A18
for_01_15-15.jpg
1. NON-TURBO MODEL
1) Disconnect ground cable from the battery.
for_01_15-16.jpg
9) Remove reservoir tank.
for_01_15-17.jpg
2)   Lift-up the vehicle.
3)   Remove under cover.
4)   Drain engine coolant completely.
<Ref. to CO-14, DRAINING OF ENGINE COOLANT, REPLACEMENT, Engine Coolant.>
5)   Disconnect connectors from radiator main fan (A) and sub fan (B) motors.
for_01_15-18.jpg
10)   Remove radiator main fan and sub fan assem­blies. <Ref. to CO-32, REMOVAL, Radiator Main Fan and Fan Motor.> and <Ref. to CO-34, REMOVAL, Radiator Sub Fan and Fan Motor.>
11)   Remove V-belts.
<Ref. to ME(SOHC)-42, REMOVAL, V-belt.>
12)   Remove timing belt.
<Ref. to ME(SOHC)-46, TIMING BELT, REMOVAL, Timing Belt Assembly.>
13)   Remove automatic belt tension adjuster.
6) Disconnect radiator outlet hose and heater hose from water pump.
for_01_15-19.jpg
for_01_15-20.jpg
7) Lower the vehicle.
CO-16
WATER PUMP
Cooling
14) Remove belt idler No. 2.
19) Remove water pump.
for_01_15-21.jpg
for_01_15-22.jpg
15) Remove left-hand camshaft sprocket by using ST.
ST 499207100 CAMSHAFT SPROCKET WRENCH
2. TURBO MODEL
WARNING:
The radiator is pressurized. Wait until engine
cools down before working on the radiator.
1)  Set the vehicle on the lift.
2)   Disconnect ground cable from the battery.
for_01_15-23.jpg
for_01_15-24.jpg
16) Remove left-hand belt cover No. 2.
for_01_15-25.jpg
3)   Lift-up the vehicle.
4)   Remove under cover.
5)   Drain engine coolant completely. <Ref. to CO-14, DRAINING OF ENGINE COOLANT, REPLACEMENT, Engine Coolant.>
6)   Disconnect connectors from radiator main fan and sub fan motors.
7)   Remove bolt which installs water by-pass pipe of oil cooler onto oil pump.
17) Remove tensioner bracket.
for_01_15-26.jpg
for_01_15-27.jpg
8) Disconnect radiator outlet hose (A) and heater hose (B) from water pump.
18) Disconnect heater hose from water pump.
CO-17
WATER PUMP
Cooling
9) Disconnect water by-pass hose (C) and oil cooler hose (D).
20) Remove left-hand camshaft sprockets by using ST.
ST 499207400 CAMSHAFT SPROCKET WRENCH
for_01_15-28.jpg
for_01_15-29.jpg
10)   Lower the vehicle.
11)   Disconnect over flow hose.
12)   Remove reservoir tank.
21) Remove left-hand belt cover No. 2.
for_01_15-30.jpg
for_01_15-31.jpg
13)   Remove radiator main fan and sub fan assem­blies. <Ref. to CO-32, REMOVAL, Radiator Main Fan and Fan Motor.> and <Ref. to CO-34, REMOVAL, Radiator Sub Fan and Fan Motor.>
14)   Remove V-belts. <Ref. to ME(DOHC TURBO)-44, REMOVAL, V-belt.>
15)   Remove timing belt. <Ref. to ME(DOHC TURBO)-48, REMOVAL, Timing Belt Assembly.>
16)   Remove automatic belt tension adjuster (A).
17)   Remove belt idler (B).
18)   Remove belt idler No. 2 (C).
22) Remove tensioner bracket.
for_01_15-32.jpg
for_01_15-33.jpg
23)   Disconnect heater hose from water pump.
24)   Remove water pump.
for_01_15-34.jpg
19) Remove camshaft position sensor. <Ref. to FU(DOHC TURBO)-31, REMOVAL, Camshaft Position Sensor. >
CO-18
WATER PUMP
Cooling
4) Install left-hand camshaft sprockets by using ST.
ST 4992707100 CAMSHAFT SPROCKET WRENCH
Tightening torque:
78 Nm (8.0 kgf-m, 57.9 ft-lb)
B: INSTALLATION
S176061A11
1. NON-TURBO MODEL S1760
1) Install water pump onto left-hand cylinder head.
CAUTION:
-  Replace gasket with a new one.
-  When installing water pump, tighten bolts in two stages in alphabetical sequence as shown in figure.
Tightening torque: First:
12 Nm (1.2 kgf-m, 8.7 ft-lb) Second:
12 Nm (1.2 kgf-m, 8.7 ft-lb)
for_01_15-35.jpg
for_01_15-36.jpg
5) Install belt idler No. 2.
Tightening torque:
39 Nm (4.0 kgf-m, 28.9 ft-lb)
for_01_15-37.jpg
2) Install left-hand belt cover No. 2.
Tightening torque:
5 Nm (0.5 kgf-m, 3.6 ft-lb)
for_01_15-38.jpg
6)   Install automatic belt tension adjuster which tension rod is holded with pin. <Ref. to ME(SOHC)-47, AUTOMATIC BELT TENSION ADJUSTER ASSEMBLY AND BELT IDLER, INSTALLATION, Timing Belt Assembly.>
7)   Install timing belt. <Ref. to ME(SOHC)-48, TIM­ING BELT, INSTALLATION, Timing Belt Assem­bly. >
8)   Install V-belts. <Ref. to ME(SOHC)-42, INSTALLATION, V-belt.>
9)   Install radiator main fan and sub fan motor assemblies. <Ref. to CO-32, INSTALLATION, Radiator Main Fan and Fan Motor.> and <Ref. to CO-34, INSTALLATION, Radiator Sub Fan and Fan Motor.>
3) Install tensioner bracket.
Tightening torque:
25 Nm (2.5 kgf-m, 18.1 ft-lb)
for_01_15-39.jpg
CO-19
WATER PUMP
Cooling
10) Install reservoir tank.
17) Connect battery ground cable.
for_01_15-40.jpg
for_01_15-41.jpg
11) Connect over flow hose.
18) Fill coolant. <Ref. to CO-14, FILLING OF ENGINE COOLANT, REPLACEMENT, Engine Coolant. >
2. TURBO MODEL S176
1) Install water pump onto left-hand cylinder head.
CAUTION:
-  Replace gasket with a new one.
-  When installing water pump, tighten bolts in two stages in alphabetical sequence as shown in figure.
Tightening torque: First:
12 Nm (1.2 kgf-m, 8.7 ft-lb) Second:
12 Nm (1.2 kgf-m, 8.7 ft-lb)
for_01_15-42.jpg
12)   Lift-up the vehicle.
13)  Connect radiator outlet hose and heater hose to water pump.
for_01_15-43.jpg
for_01_15-44.jpg
14) Connect connectors to radiator main fan (A) and sub fan (B) motors.
2) Install left-hand belt cover No. 2.
Tightening torque:
5 Nm (0.5 kgf-m, 3.6 ft-lb)
for_01_15-45.jpg
for_01_15-46.jpg
15)   Install under cover.
16)   Lower the vehicle.
CO-20
WATER PUMP
Cooling
3) Install tensioner bracket.
Tightening torque:
25 Nm (2.5 kgf-m, 18.1 ft-lb)
Tightening torque:
39.4 Nm (4.0 kgf-m, 28.9 ft-lb)
for_01_15-47.jpg
for_01_15-48.jpg
9)   Install timing belt. <Ref. to ME(DOHC TURBO)-50, TIMING BELT, INSTALLATION, Timing Belt Assembly. >
10)   Install V-belts. <Ref. to ME(DOHC TURBO)-44, INSTALLATION, V-belt.>
11)   Install radiator main fan and sub fan motor assemblies. <Ref. to CO-32, INSTALLATION, Radiator Main Fan and Fan Motor.> and <Ref. to CO-34, INSTALLATION, Radiator Sub Fan and Fan Motor.>
12)   Install reservoir tank.
4) Install left-hand camshaft sprockets by using ST.
ST 499207400 CAMSHAFT SPROCKET WRENCH
Tightening torque:
98 Nm (10.0 kgf-m, 72.4 ft-lb)
for_01_15-49.jpg
for_01_15-50.jpg
5)   Install camshaft position sensor. <Ref. to FU(DOHC TURBO)-31, INSTALLATION, Cam­shaft Position Sensor.>
6)   Install belt idler No. 2 (C).
7)   Install belt idler (B).
8)   Install automatic belt tension adjuster (A) which has a tension rod held by a pin. <Ref. to ME(DOHC TURBO)-49, AUTOMATIC BELT TENSION ADJUSTER ASSEMBLY AND BELT IDLER, INSTALLATION, Timing Belt Assembly.>
13)  Connect over flow hose.
14)   Lift-up the vehicle.
15)  Connect radiator outlet hose (A) and heater hose (B) to water pump.
16)  Connect water by-pass hose (C) and oil cooler hose (D).
for_01_15-51.jpg
CO-21
WATER PUMP
Cooling
17) Install bolt which installs water by-pass pipe onto oil pump.
4) Check clearance between impeller and pump case.
Clearance between impeller and pump case: Standard
0.5 - 0.7 mm (0.020 - 0.028 in) Limit
1.0 mm (0.039 in)
for_01_15-52.jpg
for_01_15-53.jpg
18)  Connect connectors to radiator main fan and sub fan motors.
19)   Install under cover.
20)   Lower the vehicle.
21)  Connect battery ground cable.
for_01_15-54.jpg
5) After water pump installation, check pulley shaft for engine coolant leaks. If leaks are noted, replace water pump assembly.
22) Fill coolant. <Ref. to CO-14, FILLING OF ENGINE COOLANT, REPLACEMENT, Engine Coolant. >
C: INSPECTION
S176061A10
1)  Check water pump bearing for smooth rotation.
2)  Check water pump pulley for abnormalities.
3)   Using a dial gauge, measure impeller runout in thrust direction while rotating the pulley.
"Thrust" runout limit: 0.5 mm (0.020 in)
for_01_15-55.jpg
CO-22