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MAXIMUM END GAP:
MAXIMUM END GAP SPECIFICATIONS
Fig. 448: Measuring Piston Ring Gap Using Feeler Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
If the end gap is greater than the maximum, replace the piston ring. If the end gap is greater than the
maximum, even with a new piston ring, replace the cylinder block sub-assy.
No. 10.300 to 0.500 mm (0.0118 to 0.0197 in.)
No. 20.400 to 0.600 mm (0.0157 to 0.0236 in.)
Oil (Side rail)0.150 to 0.500 mm (0.0059 to 0.0197 in.)
No. 11.05 mm (0.0413 in.)
No. 21.20 mm (0.0472 in.)
Oil (Side rail)1.10 mm (0.0433 in.)
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11.INSPECT CONNECTING ROD SUB-ASSY
a. Using a rod aligner and feeler gauge, check the connecting rod alignment.
1. Check if it is bent.
Maximum bend:
0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
If the bend is greater than the maximum, replace the connecting rod sub-assy.
Fig. 449: Checking Connecting Rod Alignment
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
2. Check if it is twisted.
Maximum twist:
0.15 mm (0.0059 in.) per 100 mm (3.94 in.)
If the twist is
greater than the maximum, replace the connecting rod sub-assy.
Page 3739 of 4500
Fig. 450: Checking Twisted
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
12.INSPECT PISTON PIN OIL CLEARANCE
a. Inspect the piston pin oil clearance.
1. Using a caliper gauge, measure the inside diameter of the connecting rod bushing.
Bushing inside diameter:
22.005 to 22.014 mm (0.8663 to 0.8667 in.)
If the bushing inside diameter is not as specified, check the oil clearance.
2. Subtract the piston pin diameter measurement (see step 10) from the bush inside diameter
measurement.
Page 3740 of 4500
Fig. 451: Measuring Inside Diameter Of Connecting Rod Bushing Using Caliper Gauge
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
Standard oil clearance:
0.005 to 0.011 mm (0.0002 to 0.0004 in.)
Maximum oil clearance: 0.05 mm (0.0020 in.)
If the oil clearance is greater than the maximum, replace the bush. If necessary, replace the piston and
piston pin with a new piston and pin set.
13.REMOVE CONNECTING ROD SMALL END BUSH
a. Using SST and a press, press out the bush.
SST 09222-30010
Page 3741 of 4500
Fig. 452: Pressing Out Bush Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
14.INSPECT CONNECTING ROD BOLT
a. Using a vernier caliper, measure the tension portion of the connecting rod bolt.
Standard diameter:
7.200 to 7.300 mm (0.2835 to 0.2874 in.)
Minimum diameter: 7.00 mm (0.2756 in.)
If the diameter is less than the minimum, replace the bolt.
Page 3742 of 4500
Fig. 453: Measuring Tension Portion Of Connecting Rod Bolt Using Vernier Caliper
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
15.INSPECT CRANKSHAFT BEARING CAP BOLT
a. Using a vernier caliper, measure the tension portion diameter of the main bearing cap bolt.
Standard diameter:
7.500 to 7.600 mm (0.2953 to 0.2992 in.)
Minimum diameter: 7.20 mm (0.2835 in.)
If the diameter is less than the minimum, replace the cap bolt.
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Fig. 454: Measuring Tension Portion Diameter Of Main Bearing Cap Bolt Using Vernier Caliper
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
16.INSPECT CRANKSHAFT
a. Inspect for circle runout.
1. Place the crankshaft on V-blocks.
2. Using a dial indicator, measure the circle runout at the center journal.
Maximum circle runout: 0.08 mm (0.0031 in.)
If the circle runout is
greater than the maximum, replace the crankshaft.
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Fig. 455: Measuring Circle Runout At Center Journal Using Dial Indicator
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.
b. Inspect the main journals and crank pins.
1. Using a micrometer, measure the diameter of each main journal and crank pin.
Main journal diameter:
66.988 to 67.000 mm (2.6373 to 2.6378 in.)
Crank pin diameter:
51.982 to 52.000 mm (2.0465 to 2.0472 in.)
If the diameter is not as specified, check the oil clearance (see steps 3 and 7). If necessary, replace
the crankshaft.
2. Check each main journal and crank pin for taper and out-of-round as shown in the illustration.
Maximum taper and out-of-round:
0.02 mm (0.0008 in.)