Compression Check - Toyota 2L-T Repair Manual

ENGl NE MECHANICAL
-
Com~ression Check
COMPRESSION CHECK
HINT:
I f there is lack of power, excessive oil consump-
tion or poor fuel economy, measure the compression pres-
sure.
WARM UP AND STOP ENGINE
Allow the engine to reach normal operating temperature.
DISCONNECT INJECTION PUMP (FUEL CUT
SOLENOID) CONNECTOR
REMOVE AIR CLEANER
(w/ Intake Pipe)
REMOVE INTAKE PIPE
REMOVE GLOW PLUGS
CHECK CYLINDER COMPRESSION PRESSURE
(a)
Install SST (attachment) to the glow plug hole.
SST 09992-00024 (09992-001 2 1
)
(b) Connect SST (compression gauge) to SST (attach-
ment).
SST 09992-00024 (09992-00 1 2 1,09992-002 1 1
)
(c)
Fully open the throttle valve.
(d) While cranking the engine, measure the compression
pressure.
HINT: Always use a fully charged battery to obtain
engine revolution of 250 rpm or more.
(e)
Repeat steps (a) through (d) for each cylinder.
NOTICE:
This measurement must be done in as short a
time a s possible.
Compression pressure:
2L-T 31.0 kg/cm2 (441 psi, 3,040 kPa) or more
3 L 32.0 kg/cm2 (455 psi, 3,138 kPa) or more
Minimum pressure:
20.0 kg/cm2 (284 psi, 1,961 kPa)
Difference between each cylinder:
5.0 kg/cm2 (71 psi, 490 kPa) or less