Inspection Of Crankshaft - Toyota 1C Repair Manual

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ENGINE MECHANICAL Cylinder Block
..., .
REPLACEMENT OF CONNECTING ROD
BUSHING
1. REMOVE ROD BUSHING
Using SST and a press. press out the bushing .
SST 09222-64010 (09222-02020, 09222-02040)
2. IN STAU NEW ROD BUSHING
(a)
Align the oil holes of the bushing and rod.
(bJ
Using SST and a press. press in the bushing .
SST 09222-64010 (09222 -02020. 09222-02030
09222-02040) •
3. HONE ROD BUSHING AND CHECK PISTON PIN FIT
IN CONNEC TIN G ROD
(a) Using a pin hole grinder. hone the bushing and check
that the oil clearance is within standard specification.
Standard oil clearance: 0.007 - 0.0 15 mm
(0.0003 - 0.0006
in .)
(b) Check the piston pin fit at normal room temperature.
Coat the piston pin with engine oil and push it into
the rod with your thumb .
INSPECTION OF CRANKSHAFT
MEASURE CRANKSHAFT
(a) Place the crankshaft on V-blocks.
(b) Using a dial indicato r. measure the circle runout at
the center journal.
M axim um c ir cle runout: 0.1 mm (0.004 in.)
If the circle runout is greater than the maximum. replace
the crankshaft.
(c)
Using a micromater, measure the diameter of the
journal and crank pin.
(d) Measure the journals for out-o f-roun d and taper as
shown.
J o urn al diameter : 56 .985 - 57 .000 mm
(2.2435 - 2. 2441
in.)
Crank pin diameter: 50.488 - 50.500 mm
(1.9877 - 1.98 82
in .)
Maximum taper and out-of -round:
0.02 mm (0.0008
in.)
If not within specification. replace the crankshaft