EXAMPLE: Cylinder block ”2” + Crankshaft ”1”
= Total number 3 (Use bearing ”3”)
Number marked
Cylinder block
Crankshaft
Use bearing
1
2
3
2
2
2
2
3
3
3
3
3
4
4
4
5
5
6
1
1
1
−
ENGINE MECHANICAL
CYLINDER BLOCK
EM
−
89
1996 LAND CRUISER (RM451U)
(j)
Measure the Plastigage at its widest point.
Standard clearance:
STD
0.042
−
0.060 mm (0.0017
−
0.0024 in.)
U/S 0.25
0.041
−
0.081 mm (0.0016
−
0.0032 in.)
Maximum clearance: 0.10 mm (0.0039 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, grind or replace the crankshaft.
HINT:
If using a standard bearing, replace with one having the same
number. If the number of the bearing cannot be determined, se-
lect the correct bearing by adding together the numbers im-
printed on the cylinder block and crankshaft, then selecting the
bearing with the same number as the total. There are 5 sizes
of standard bearings, marked ”2”, ”3”, ”4”, ”5” and ”6” accorking-
ly.
Reference
Cylinder block main journal bore diameter:
Mark ”1”
74.026
−
74.032 mm (2.9144
−
2.9146 in.)
Mark ”2”
74.032
−
74.038 mm (2.9146
−
2.9149 in.)
Mark ”3”
74.038
−
74.044 mm (2.9149
−
2.9151 in.)
Crankshaft main journal diameter:
Mark ”1”
68.994
−
69.000 mm (2.7163
−
2.7165 in.)
Mark ”2”
68.988
−
68.994 mm (2.7161
−
2.7163 in.)
Mark ”3”
68.982
−
68.988 mm (2.7158
−
2.7161 in.)
Standard bearing center wall thickness:
Mark ”2”
2.489
−
2.492 mm (0.0980
−
0.0981 in.)
Mark ”2”
2.492
−
2.495 mm (0.0981
−
0.0982 in.)
Mark ”3”
2.495
−
2.498 mm (0.0982
−
0.0983 in.)
Mark ”4”
2.498
−
2.501 mm (0.0983
−
0.0985 in.)
Mark ”5”
2.501
−
2.504 mm (0.0985
−
0.0986 in.)
(k)
Completely remove the Plastigage.
18. REMOVE CRANKSHAFT
(a)
Lift out the crankshaft.
(b)
Remove the upper main bearings and upper thrust wash-
ers from the cylinder block.
HINT:
Arrange the main bearings and thrust washers in correct order.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.00 - 12/21/2010