P04002
125 mm
EM7639
P03829
EM
−
96
−
ENGINE MECHANICAL
CYLINDER BLOCK
1996 LAND CRUISER (RM451U)
(c)
Inspect the piston ring end gap.
(1)
Insert the piston ring into the cylinder bore.
(2)
Using a piston, push the piston ring a little beyond
the bottom of the ring travel, 125 mm (4.92 in.) from
the top of the cylinder block.
(3)
Using a feeler gauge, measure the end gap.
Standard end gap:
No. 1
0.300
−
0.520 mm (0.0118
−
0.0205 in.)
No. 2
0.450
−
0.670 mm (0.0177
−
0.0264 in.)
Oil (Side rail)
0.150
−
0.520 mm (0.0059
−
0.0205 in.)
Maximum end gap:
No. 1
1.12 mm (0.0441 in.)
No. 2
1.17 mm (0.0461 in.)
Oil (Side rail)
1.12 mm (0.0441 in.)
If the end gap is greater than maximum, replace the piston ring.
If the end gap is greater than maximum, even with a new piston
ring, rebore all the 6 cylinders or replace the cylinder block.
(d)
Inspect the piston pin fit.
At 80
−
90
°
C (176
−
194
°
F), you should be able to push
the piston pin into the piston pin hole with your thumb.
(e)
Using a rod aligner and feeler gauge, check the connect-
ing rod alignment.
(1)
Check for out
−
of
−
alignment.
Maximum out
−
of
−
alignment:
0.05 mm (0.0020 in.) per 100 mm (3.94 in.)
If out
−
of
−
alignment is greater than maximum, replace the con-
necting rod assembly.
Brought to you by BirfMark
Brought to you by BirfMark
Version 1.00 - 12/21/2010
