Toyota 1HZ Repair Manual

CO-7
COOLING SYSTEM - Water Pump
REMOVAL OF WATER PUMP
(See page CO-6)
1. DRAIN ENGINE COOLANT (See page CO-5)
2. REMOVE DRIVE BELT, FAN AND WATER PUMP
PULLEY
(a) Stretch the belt tight and loosen the four pump pulley
set nuts.
(b) Loosen the pivot bolt, lock bolt and adjusting bolt,
and remove the drive belt.
(c) Remove the four nuts, fan and fluid coupling (fan
spacer) assembly and pulley.
3. REMOVE TIMING BELT AND IDLER PULLEY
(See steps 1 to 4 on pages EM-33 to 34)
4. REMOVE NO.1 CAMSHAFT TIMING PULLEY
(See steps 6 to 8 on pages EM-34 to 35)
5. REMOVE CAMSHAFT OIL SEAL RETAINER
(See step 14 on page EM-55)
6. REMOVE WATER PUMP
(a) (1HD-T)
Disconnect the turbo water by-pass hoses.
(b) Remove the three bolts and alternator adjusting bar.
(c) Remove the five bolts, two nuts, No.2 turbo water
pipe (1 HD-T), water pump and gasket.
CO0957
EM8284
CO0955

Toyota 1HZ Specifications

General

Fuel Type	Diesel
Maximum Power	96 kW (129 hp) at 3800 rpm
Firing Order	1-5-3-6-2-4
Aspiration	Naturally aspirated
Fuel System	Direct injection
Cooling System	Water-cooled
Displacement	4.2 L (4164 cc)
Maximum Torque	285 N·m (210 lb·ft) at 2200 rpm
Valvetrain	SOHC, 12 valves (2 per cylinder)