Toyota 1RZ Supplement Manual page 304

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EM- -24
Crankshaft Timing
Gear
ENGINE MECHANICAL
INSPECTION
1.
(a)
16 Links
If the elongation is greater than maximum, replace the chain.
Z14864
HINT:
Make the same measurements pulling at 3 or more places se-
Camshaft Timing
lected at random.
Gear
(b)
(c)
NOTICE:
Vernier calipers must contact the chain rollers for measur-
ing.
A01793
If the diameter is less than minimum, replace the chain, gears
and sprocket.
2.
Measure the chain tensioner slipper and vibration damper
wears.
If the wear is greater than maximum, replace the slipper and/or
dampers.
A01794
3.
Check the oil for damage or clogging.
Air
If necessary, replace the oil jet.
4.
If necessary, replace the oil jet (No.2 chain tensioner).
P22508
- - TIMING CHAIN (2RZ- -FE)
INSPECT TIMING CHAI NS , T I MI NG G E ARS AND
TI MI NG S P RO CKE TS
Measure the length of 16 links with the chain fully
stretched.
Maximum chain elongation:
No.1 Timing chain
147.5 mm (5.807 in.)
Wrap the chain around the timing gear and timing sprock-
et.
Using vernier calipers, measure the timing gear and tim-
ing sprocket diameter with the chain.
Minimum gear diameter:
Camshaft
113.8 mm (4.480 in.)
Crankshaft
59.4 mm (2.339 in.)
INSPECT CHAI N T E NS I O NE R S L I PPER AND
V I BRATI O N DAMP E RS
Maximum wear:
1.0 mm (0.039 in.)
INSPECT OIL JET
INSPECT NO.1 CHAI N T E NS I O NE R
(See page EM - -50)
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