Nissan Frontier D40. Manual - part 586
EM-76
< REMOVAL AND INSTALLATION >
[QR25DE]
ENGINE ASSEMBLY
• Be careful not to damage drive plate or flywheel. Espe-
cially avoid deforming and damaging of signal plate
teeth (circumference position).
• Place the drive plate or flywheel with signal plate sur-
face facing other than downward.
• Keep magnetic materials away from signal plate.
CAUTION:
Use an engine stand that has a load capacity [approximately 240kg (529 lb) or more] large enough
for supporting the engine weight.
• If the load capacity of the stand is not adequate, remove the following parts beforehand to
reduce the potential risk of overturning the stand.
- Remove fuel tube and fuel injector assembly. Refer to
EM-38, "Removal and Installation"
- Remove intake manifold. Refer to
EM-27, "Removal and Installation"
- Remove rocker cover. Refer to
EM-36, "Removal and Installation"
.
- Other removable brackets.
CAUTION:
Before removing the hanging chains, make sure the engine stand is stable and there is no risk of
overturning.
28. Remove generator. Refer to
CHG-20, "Removal and Installation - QR25DE Models"
29. Remove engine mounting insulator bracket (upper) with power tool.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
• When replacing an engine or transmission you must make sure the dowels are installed correctly
during reassembly.
• Improper alignment caused by missing dowels may cause vibration, oil leaks or breakage of driv-
etrain components.
• Do not allow engine oil to get on engine mounting insulator. Be careful not to damage engine mounting insu-
lator.
• When installation directions are specified, install parts according to the direction marks on them referring to
the figure of components.
• Make sure that each mounting insulator is seated properly, and tighten nuts and bolts.
INSPECTION AFTER INSTALLATION
• Before starting the engine, check oil/fluid levels including engine coolant and engine oil. If the levels are
lower than required quantity, fill to the specified level. Refer to
MA-16, "For North America: Fluids and Lubri-
• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to the fuel piping, check for fuel
leakage at the connection points.
• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.
NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.
• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oil/fluids including
engine oil and engine coolant.
• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down the engine, again check oil/fluid levels including engine oil and engine coolant. Refill to
specified level if necessary.
• Summary of the inspection items:
KBIA2491E