EM-42
ENGINE MECHANICAL - Cylinder Block
(f)
Place the crankshaft on the cylinder block.
(g)
Lay a strip of Plastigage across each journal.
(h)
Install the main caps.
Torque:
19 mm bolt head
1,375 kg-cm (99 ft-lb, 135 N•m)
17 mm bolt head
1,175 kg-cm (85 ft-lb, 115 N•m)
HINT: Do not turn the crankshaft.
(i)
Remove the main bearing caps.
(j)
Measure the Plastigage at its widest point.
Standard oil clearance:
STD size
0.020 - 0.044 mm
(0.0008 - 0.0017 in.)
U/S 0.25 and 0.50
0.021 - 0.067 mm
(0.0008 - 0.0026 in.)
Maximum oil clearance: 0.10 mm (0.0039 in.)
HINT: If replacing the cylinder block subassembly the
bearing standard clearance will be:
0.004 — 0.060 mm (0.002 — 0.0024 in.)
If the oil clearance is greater than maximum, replace the
bearings. If necessary, grind or replace the crankshaft.
HINT: If replacing a standard size bearing with a stan-
dard oil clearance, replace with one having the same
number. If the number of the bearing cannot be deter-
mined, select a bearing from the table below according to
the numbers imprinted on the cylinder block and
crankshaft.
There are five sizes of standard bearings, marked T1, T2,
T3, T4 and T5.
Number marked
Crankshaft
3
4
5
Cylinder block
6
7
8
6
7
8
6
7
8
Bearing
T3
T4
T5
T2
T3
T4
T1
T2
T3
Example: Crankshaft "5", Cylinder Block "7"
= Bearing "T2"
