Toyota 3S-GTE User Manual

EG-37
ENGINE — ENGINE MECHANICAL
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Disconnect the high —tension cords at the rubber
boot. Do not pull on the high—tension cords.
NOTICE: Pulling on or bending the cords may damage the
conductor inside.
REMOVE SPARK PLUGS
Using SST, remove the 4 spark plugs.
SST 09155-16100
CHECK CYLINDER COMPRESSION PRESSURE
Insert a compression gauge into the spark plug hole.
Fully open the throttle.
While cranking the engine. measure the compression
pressure.
HINT: Always use a fully charged battery to obtain
engine speed of 250 rpm or more.
Repeat steps Ia) through (c) for each cylinder.
NOTICE: This measurement must be done in as short a
time es possible.
Compression pressure:
1.130 kPe (11.5 kgf/cm‘. 164 psi) or more
Minimum pressure:
880 kPe (9.0 kgf/cm’. 128 psi)
Difference between each cylinder:
100 kPe (1.0 kgf/cm’. ‘I4 psi) or less
If the cylinder compression in one or more cylinders is
low, pour a small amount of engine oil into the cylin-
der through the spark plug hole and repeat steps (a)
through (c) for cylinders with low compression.
I If adding oil helps the compression, it is likely that
the piston rings and/or cylinder bore are worn or
damaged.
0 If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.

Toyota 3S-GTE Specifications

General

Brand	Toyota
Model	3S-GTE
Category	Engine
Language	English