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CYLINDER BLOCK
EM-137
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EM
Revision: 2004 November 2004 FX35/FX45
Piston to Piston Pin Oil Clearance
(Piston pin oil clearance) = (Piston pin hole diameter) – (Piston pin outer diameter)
● If clearance exceeds specification, replace piston/piston pin assembly with reference to specification of
each parts.
● When replacing piston/piston pin assembly, refer to EM-140, "PISTON TO CYLINDER BORE CLEAR-
ANCE" .
PISTON RING SIDE CLEARANCE
● Measure side clearance of piston ring and piston ring groove
with feeler gauge.
● If the measured value exceeds the limit, replace piston ring, and measure again. If it still exceeds the limit,
replace piston also.
PISTON RING END GAP
● Check if inner diameter of cylinder bore is within specification.
Refer to EM-140, "
PISTON TO CYLINDER BORE CLEAR-
ANCE" .
● Insert piston ring until middle of cylinder with piston, and mea-
sure gap.
● If out of specification, replace piston ring. If gap still exceeds the limit even with a new ring, re-bore cylin-
der and use oversized piston and piston ring.
Standard : 0.002 - 0.006 mm (0.0001 - 0.0002 in)
Standard:
Top ring : 0.045 - 0.080 mm (0.0018 - 0.0031 in)
2nd ring : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Oil ring : 0.065 - 0.135 mm (0.0026 - 0.0053 in)
Limit:
Top ring : 0.11 mm (0.0043 in)
2nd ring : 0.10 mm (0.004 in)
SEM024AA
Standard:
Top ring : 0.23 - 0.33 mm (0.0091 - 0.0130 in)
2nd ring : 0.33 - 0.48 mm (0.0130 - 0.0189 in)
Oil ring : 0.20 - 0.50 mm (0.0079 - 0.0197 in)
Limit:
Top ring : 0.54 mm (0.0213 in)
2nd ring : 0.80 mm (0.0315 in)
Oil ring : 0.95 mm (0.0374 in)
PBIC0118E
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