Toyota 1HZ Repair Manual

EM-30
ENGINE MECHANICAL Compression Check
COMPRESSION CHECK
HINT: If there is lack of power, excessive oil consumption
or poor fuel economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to reach normal operating temperature.
2. DISCONNECT INJECTION PUMP (FUEL CUT
SOLENOID) CONNECTOR
3. REMOVE GLOW PLUGS
(See step 9 on page EM-57)
4. CHECK CYLINDER COMPRESSION PRESSURE
(a) Install SST (attachment) to the glow plug hole.
SST 09992-00024 (09992-00160)
(b) Connect SST (compression gauge) to SST (attach-
ment).
SST 09992-00024 (09992-001 60, 09992-00211)

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)