2004 INFINITI FX35 Service Manual

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Page 2865 of 4449

INFINITI FX35 2004 Service Manual EM-140
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CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
Measure the distortion on the block upper face at some different
points in 6 directions.
If out of the distortion limit, replace

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INFINITI FX35 2004 Service Manual CYLINDER BLOCK
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Revision: 2004 November 2004 FX35/FX45
Piston Skirt Diameter
Measure piston skirt diameter using micrometer.
Piston-to-Cylinder Bore Clearance

Page 2867 of 4449

INFINITI FX35 2004 Service Manual EM-142
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CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
CRANKSHAFT PIN JOURNAL DIAMETER
Measure outer diameter of crankshaft pin journal with microme-
ter.
If out of the standard, meas

EM-142
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CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
CRANKSHAFT PIN JOURNAL DIAMETER
Measure outer diameter of crankshaft pin journal with microme-
ter.
If out of the standard, measure the connecting rod bearing oil
clearance. Then use undersize bearing. Refer to EM-142,
"CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT OUT-OF-ROUND AND TAPER
Using a micrometer, measure the dimensions at “4” different
points shown in the figure on each journal and pin.
Out-of-round is indicated by the difference in dimensions
between “X” and “Y” at “A” and “B”.
Taper is indicated by the difference in dimension between “A”
and “B” at “X” and “Y”.
If the measured value exceeds the limit, correct or replace crankshaft.
If corrected, measure the bearing oil clearance of the corrected main journal and/or pin journal. Then
select the main bearing and/or connecting rod bearing. Refer to EM-143, "
MAIN BEARING OIL CLEAR-
ANCE" and/or EM-142, "CONNECTING ROD BEARING OIL CLEARANCE" .
CRANKSHAFT RUNOUT
Place a V-block on a precise flat table to support journals on the
both end of crankshaft.
Place a dial gauge straight up on No. 3 journal.
While rotating crankshaft, read the movement of the pointer on
the dial gauge. (Total indicator reading)
If it exceeds the limit, replace crankshaft.
CONNECTING ROD BEARING OIL CLEARANCE
Method by Calculation
Install connecting rod bearings to connecting rod and connect-
ing rod bearing cap, and tighten connecting rod bolts to the
specified torque. Using a inside micrometer measure the inner
diameter of connecting rod bearing. Refer to EM-126, "
ASSEM-
BLY" for the tightening procedure.
(Oil clearance) = (Connecting rod bearing inner diameter) – (Crank-
shaft pin diameter)Standard : 51.956 - 51.974 mm (2.0455 - 2.0462 in) dia.
PBIC0127E
Standard
Taper (Difference between “A” and “B”)
: Less than 0.002 mm (0.0001 in)
Out-of-round (Difference between “X” and “Y”)
: Less than 0.002 mm (0.0001 in)
SBIA0535E
Standard : Less than 0.025 mm (0.0010 in)
Limit : Less than 0.10 mm (0.0039 in)
SEM346D
Standard : 0.034 - 0.059 mm (0.0013 - 0.0023 in)
(actual clearance)
Limit : 0.070 mm (0.0028 in)
PBIC1642E

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INFINITI FX35 2004 Service Manual CYLINDER BLOCK
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If clearance cannot be adjusted within the standard, grind crankshaft pin and use undersized bearing.
R

CYLINDER BLOCK
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Revision: 2004 November 2004 FX35/FX45
If clearance cannot be adjusted within the standard, grind crankshaft pin and use undersized bearing.
Refer to EM-132, "
HOW TO SELECT CONNECTING ROD BEARING" .
Method of Using Plastigage
Remove engine oil and dust on crankshaft pin and the surfaces
of each bearing completely.
Cut a plastigage slightly shorter than bearing width, and place it
in crankshaft axial direction, avoiding oil holes.
Install connecting rod bearings to connecting rod and connect-
ing rod bearing cap, and tighten connecting rod bolts to the
specified torque. Refer to EM-126, "
ASSEMBLY" for the tighten-
ing procedure.
CAUTION:
Never rotate crankshaft.
Remove connecting rod cap and bearings, and using the scale
on the plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is same as that described in the “Method by
Calculation”.
MAIN BEARING OIL CLEARANCE
Method by Calculation
Install main bearings to cylinder block and main bearing cap.
Measure the main bearing inner diameter with bearing cap bolt
tightened with main bearing beam to the specified torque. Refer
to EM-126, "
ASSEMBLY" for the tightening procedure.
(Oil clearance) = (Main bearing inner diameter) – (Crankshaft main
journal diameter)
If the measured value exceeds the limit, select main bearings
referring to the main bearing inner diameter and crankshaft jour-
nal outer diameter, so that the oil clearance satisfies the standard. Refer to EM-133, "
HOW TO SELECT
MAIN BEARING" .
Method of Using Plastigage
Remove engine oil and dust on crankshaft journal and the sur-
faces of each bearing completely.
Cut a plastigage slightly shorter than bearing width, and place it
in crankshaft axial direction, avoiding oil holes.
Install main bearing to cylinder block and main bearing cap, and
tighten main bearing bolts with main bearing beam to the speci-
fied torque. Refer to EM-126, "
ASSEMBLY" for the tightening
procedure.
CAUTION:
Never rotate crankshaft.
Remove bearing cap and bearings, and using the scale on the
plastigage bag, measure the plastigage width.
NOTE:
The procedure when the measured value exceeds the limit is same as that described in the “Method by
Calculation”.
PBIC1149E
Standard : 0.035 - 0.045 mm (0.0014 - 0.0018 in)
(actual clearance)
Limit : 0.065 mm (0.0026 in)
PBIC1644E
PBIC1149E

Page 2869 of 4449

INFINITI FX35 2004 Service Manual EM-144
[VQ35DE]
CYLINDER BLOCK
Revision: 2004 November 2004 FX35/FX45
MAIN BEARING CRUSH HEIGHT
When main bearing cap is removed after being tightened to the
specified torque with main bearings insta

Page 2870 of 4449

INFINITI FX35 2004 Service Manual CYLINDER BLOCK
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Revision: 2004 November 2004 FX35/FX45
DRIVE PLATE
Check drive plate and signal plate for deformation or damage.
CAUTION:
Do not disassemble

Page 2871 of 4449

INFINITI FX35 2004 Service Manual EM-146
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SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: 2004 November 2004 FX35/FX45
SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00100
Standard and LimitABS004XK
GENERAL SPECIFICATIONS
Cylinder a

Page 2872 of 4449

INFINITI FX35 2004 Service Manual SERVICE DATA AND SPECIFICATIONS (SDS)
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Revision: 2004 November 2004 FX35/FX45
DRIVE BELT
*: If belt tension gauge cannot be installed at check points shown, ch

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