2001 INFINITI QX4 Factory Service Manual

Page 1705 of 2395

INFINITI QX4 2001  Factory Service Manual CYLINDER BLOCK HEATERNBEM0024S02
SEM537G
SEM180FA
Removal and InstallationNBEM0025CAUTION:
IWhen installing bearings, pistons, or other sliding parts,
lubricate contacting surfaces with new engine oil

Page 1706 of 2395

INFINITI QX4 2001  Factory Service Manual SEM965A
7. Remove pistons with connecting rods.
IWhen disassembling piston and connecting rod, remove snap
ring first, then heat piston to 60 to 70ÉC (140 to 158ÉF).
8. Remove rear oil seal retainer

Page 1707 of 2395

INFINITI QX4 2001  Factory Service Manual SEM024AA
PISTON RING SIDE CLEARANCENBEM0027S02Side clearance:
Top ring
0.040 - 0.080 mm (0.0016 - 0.0031 in)
2nd ring
0.030 - 0.070 mm (0.0012 - 0.0028 in)
Oil ring
0.015 - 0.050 mm (0.0006 - 0.0020 i

Page 1708 of 2395

INFINITI QX4 2001  Factory Service Manual SEM038F
SEM003F
CONNECTING ROD BEND AND TORSIONNBEM0027S04Bend:
Limit 0.15 mm (0.0059 in)
per 100 mm (3.94 in) length
Torsion:
Limit 0.30 mm (0.0118 in)
per 100 mm (3.94 in) length
If it exceeds the l

Page 1709 of 2395

INFINITI QX4 2001  Factory Service Manual SEM843E
SEM321AA
PISTON-TO-BORE CLEARANCENBEM0027S061. Using a bore gauge, measure cylinder bore for wear, out-of-
round and taper.
Cylinder bore inner diameter
Grade No. Standard inner diameter Wear

Page 1710 of 2395

INFINITI QX4 2001  Factory Service Manual 8. Cut cylinder bores.
IWhen any cylinder needs boring, all other cylinders must
also be bored.
IDo not cut too much out of cylinder bore at a time. Cut
only 0.05 mm (0.0020 in) or so in diameter at a

Page 1711 of 2395

INFINITI QX4 2001  Factory Service Manual SEM845E
2. Install main bearing cap and bearing beam to cylinder block.
Tighten all bolts in correct order.
3. Measure inner diameters ªAº of each main bearing.
AEM033
4. Measure outer diameters ªD

Page 1712 of 2395

INFINITI QX4 2001  Factory Service Manual SEM280G
AEM027
Connecting Rod Bearing (Big end)NBEM0027S08021. Install connecting rod bearing to connecting rod and cap.
2. Install connecting rod cap to connecting rod.
Tighten bolts to the specified