P12495
P12980
Plastigage
P12954
P12993
-
ENGINE MECHANICAL
CYLINDER BLOCK
EM-95
1038
Author:
Date:
2001 SIENNA (RM787U)
(d)
Lift out the crankshaft.
HINT:
Keep the upper bearings together with the cylinder block.
(e)
Clean each main journal and bearing.
(f)
Check each main journal and bearing for pitting and
scratches.
If the journal or bearing is damaged, replace the bearings. If
necessary, replace the crankshaft.
(g)
Place the crankshaft on the cylinder block.
(h)
Lay a strip of Plastigage across each journal.
(i)
Install the 4 main bearing caps.
(See page
Torque:
12 pointed head bolts:
1st: 22 N·m (225 kgf·cm, 16 ft·lbf)
2nd: Turn extra 90
°
Hexagon head bolts:
27 N·m (275 kgf·cm, 20 ft·lbf)
NOTICE:
Do not turn the crankshaft.
(j)
Remove the main bearing caps.
(See procedures (a) to (c) above)
(k)
Measure the Plastigage at its widest point.
Standard oil clearance:
No.1 and No.4 journals:
0.014 - 0.036 mm (0.0006 - 0.0014 in.)
No.2 and No.3 journals:
0.026 - 0.048 mm (0.0010 - 0.0019 in.)
Maximum clearance:
No.1 and No.4 journals: 0.05 mm (0.0020 in.)
No.2 and No.3 journals: 0.06 mm (0.0024 in.)
If the oil clearance is greater than maximum, replace the bear-
ings. If necessary, replace the crankshaft.
