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Toyota 1HZ Repair Manual

Toyota 1HZ
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EM-37
ENGINE MECHANICAL Timing Belt
(e) If there is noticeable wear on the belt teeth, check
timing belt cover for damage and check for correct
gasket installation. Check for foreign material on the
pulley teeth.
If necessary, replace the timing belt.
2. INSPECT IDLER PULLEY
(a) Check the turning smoothness of the idler pulley.
If necessary, replace the idler pulley.
(b) Check that the idler pulley and the pulley bolt slide
smoothly.
If necessary, replace the idler pulley.
3. INSPECT TENSION SPRING
(a) Measure the free length of the tension spring.
Free length: 72.7 mm (2.862 in.)
If the free length is not as specified, replace the tension
spring.
(b) Measure the tension of the tension spring at the
specified installed length.
Installed tension:
23-28 kg (50.7-61.7 Ib, 225-275 Nm)
at 90.1 mm (3.547 in.)
If the installed tension is not as specified, replace the
tension spring.

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Toyota 1HZ Specifications

General IconGeneral
Fuel TypeDiesel
Maximum Power96 kW (129 hp) at 3800 rpm
Firing Order1-5-3-6-2-4
AspirationNaturally aspirated
Fuel SystemDirect injection
Cooling SystemWater-cooled
Displacement4.2 L (4164 cc)
Maximum Torque285 N·m (210 lb·ft) at 2200 rpm
ValvetrainSOHC, 12 valves (2 per cylinder)

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