P12406
P12493
P12589
P12570
SST
EM-106
-
ENGINE MECHANICAL
CYLINDER BLOCK
1049
Author:
Date:
2001 SIENNA (RM787U)
18.
INSPECT CRANKSHAFT FOR CIRCLE RUNOUT
(a)
Place the crankshaft on V-blocks.
(b)
Using a dial indicator, measure the circle runout, as
shown in the illustration.
Maximum circle runout: 0.06 mm (0.0024 in.)
If the circle runout is greater than maximum, replace the crank-
shaft.
19.
INSPECT MAIN JOURNALS AND CRANK PINS
(a)
Using a micrometer, measure the diameter of each main
journal and crank pin.
Main journal diameter:
60.988 - 61.000 mm (2.4011 - 2.4016 in.)
Crank pin diameter:
52.992 - 53.000 mm (2.0862 - 2.0866 in.)
If the diameter is not as specified, check the oil clearance. (See
disassembly in cylinder block)
If necessary, replace the crankshaft.
(b)
Check each main journal and crank pin for taper and out-
of-round as shown.
Maximum taper and out-of-round:
0.02 mm (0.0008 in.)
If the taper and out-of-round is greater than maximum, replace
the crankshaft.
20.
REPLACE CRANKSHAFT FRONT OIL SEAL
(See page
)
21.
REPLACE CRANKSHAFT REAR OIL SEAL
HINT:
There are 2 methods ((a) and (b)) to replace the oil seal which
are as follows:
(a)
If the rear oil seal retainer is removed from the cylinder
block.
(1)
Using a screwdriver and hammer, tap out the oil
seal.
(2)
Using SST and a hammer, tap in a new oil seal until
its surface is flush with the rear oil seal retainer
edge.
SST
09223-15030, 09950-70010 (09951-07100)
(3)
Apply MP grease to the oil seal lip.