2001 INFINITI QX4 Factory Service Manual

Page 1713 of 2395

INFINITI QX4 2001  Factory Service Manual SEM452G
EM142
8. If crankshaft is replaced with a new one, select connecting rod
bearing according to the following table.
Connecting rod bearing grade number (Identification
color):
These numbers are

Page 1714 of 2395

INFINITI QX4 2001  Factory Service Manual SEM838F
AssemblyNBEM0028PISTONNBEM0028S011. Install new snap ring on one side of piston pin hole.
2. Heat piston to 60 to 70ÉC (140 to 158ÉF) and assemble piston,
piston pin, connecting rod and new

Page 1715 of 2395

INFINITI QX4 2001  Factory Service Manual SEM177F
SEM456G
2. Instructions for re-use of main bearing cap bolts.
IA plastic zone tightening method is used for tightening
main bearing cap bolts. Measure d1 and d2 as shown in
the figure.
d2: Sel

Page 1716 of 2395

INFINITI QX4 2001  Factory Service Manual SEM455G
5. Install connecting rod bearings in connecting rods and con-
necting rod caps.
IConfirm that correct bearings are used.
SEM620
6. Install pistons with connecting rods.
a. Install them into c

Page 1717 of 2395

INFINITI QX4 2001  Factory Service Manual SEM954E
7. Measure connecting rod side clearance.
Connecting rod side clearance:
Standard
0.20 - 0.35 mm (0.0079 - 0.0138 in)
Limit
0.40 mm (0.0157 in)
If beyond the limit, replace connecting rod and/

Page 1718 of 2395

INFINITI QX4 2001  Factory Service Manual General SpecificationsNBEM0029
Cylinder arrangementV- 6
Displacement cm
3(cu in)3,498 (213.45)
Bore and stroke mm (in)95.5 x 81.4 (3.760 x 3.205)
Valve arrangementDOHC
Firing order1-2-3-4-5-6
Number o

Page 1719 of 2395

INFINITI QX4 2001  Factory Service Manual ValveNBEM0032VALVENBEM0032S01Unit: mm (in)
SEM188
Valve head diameter ªDºIntake 37.0 - 37.3 (1.4567 - 1.4685)
Exhaust 31.2 - 31.5 (1.228 - 1.240)
Valve length ªLºIntake 96.12 - 96.62 (3.7842 - 3.8

Page 1720 of 2395

INFINITI QX4 2001  Factory Service Manual Thickness mm (in) Identification mark
2.42 (0.0953) 242
2.43 (0.0957) 243
2.44 (0.0961) 244
2.45 (0.0965) 245
2.46 (0.0969) 246
2.47 (0.0972) 247
2.48 (0.0976) 248
2.49 (0.0980) 249
2.50 (0.0984) 250