Infiniti G37 Coupe. Manual — part 624
ENGINE ASSEMBLY
EM-71
< REMOVAL AND INSTALLATION >
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If hydraulic pressure inside chain tensioner drops after removal/installation, slack in guide may generate a
pounding noise during and just after the engine start. However, this does not indicate a malfunction. The
noise will stop after hydraulic pressure rises.
• Warm up engine thoroughly to check that there is no leakage of fuel, or any oil/fluids including engine oil and
engine coolant.
• Bleed air from lines and hoses of applicable lines, such as in cooling system.
• After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill them to
the specified level, if necessary.
Summary of the inspection items:
* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.
Items
Before starting engine
Engine running
After engine stopped
Engine coolant
Level
Leakage
Level
Engine oil
Level
Leakage
Level
Other oils and fluids*
Level
Leakage
Level
Fuel
Leakage
Leakage
Leakage
EM-72
< DISASSEMBLY AND ASSEMBLY >
ENGINE STAND SETTING
DISASSEMBLY AND ASSEMBLY
ENGINE STAND SETTING
Setting
INFOID:0000000001547549
NOTE:
Explained here is how to disassemble with engine stand supporting transmission surface. When using a differ-
ent type of engine stand, note the difference in the steps, etc.
1.
Remove the engine assembly from the vehicle. Refer to
2.
Remove the parts that may restrict installation of engine to a widely use engine stand.
NOTE:
The procedure is described assuming that you use a widely use engine stand holding the surface, to
which transmission is installed.
• Remove clutch cover and clutch disc (M/T models). Refer to
• Remove drive plate (A/T models) or flywheel (M/T models) with power tool. Fix crankshaft with a ring
gear stopper [SST: KV10118600 (J-48641)], and remove mounting bolts.
• Loosen mounting bolts in diagonal order.
• Check for deformation or damage of drive plate (A/T models) or flywheel (M/T models).
CAUTION:
• Never disassemble drive plate (A/T models) or flywheel (M/T models).
• Never place drive plate (A/T models) or flywheel (M/T models) with signal plate facing down.
• When handling signal plate, take care not to damage or scratch it.
• Handle signal plate in a manner that prevents it from becoming magnetized.
3.
Remove pilot converter (A/T models) using the pilot bushing
puller [SST: ST1661001 (J-23907)] (A) as necessary.
4.
Lift the engine with hoist to install it onto the widely use engine stand.
CAUTION:
Use an engine stand that has a load capacity [220 kg (441 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 intake manifold collector. Refer to
- Remove intake manifold. Refer to
- Remove fuel injector and fuel tube assembly. Refer to
.
- Remove ignition coil. Refer to
- Remove rocker cover. Refer to
- Remove exhaust manifold. Refer to
- Other removable brackets.
NOTE:
JPBIA0193ZZ
ENGINE STAND SETTING
EM-73
< DISASSEMBLY AND ASSEMBLY >
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The figure shows an example of widely use engine stand (A)
that can hold mating surface of transmission with drive plate
(A/T models) or flywheel (M/T models) removed.
CAUTION:
Before removing the hanging chains, check the engine
stand is stable and there is no risk of overturning.
5.
Drain engine oil. Refer to
.
6.
Drain engine coolant by removing water drain plug (1) from both
sides of the cylinder block as shown in the figure.
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2
: Washer
3
: Plug
4
: Drain plug
: Engine front
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EM-74
< DISASSEMBLY AND ASSEMBLY >
ENGINE UNIT
ENGINE UNIT
Disassembly
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1.
Remove intake manifold collector. Refer to
2.
Remove intake manifold. Refer to
3.
Remove exhaust manifold. Refer to
.
4.
Remove oil pan (lower). Refer to
5.
Remove ignition coil, spark plug and rocker cover. Refer to
6.
Remove fuel injector and fuel tube. Refer to
7.
Remove timing chain. Refer to
.
8.
Remove rear timing chain case. Refer to
.
9.
Remove camshaft (EXH) and VVEL ladder assembly. Refer to
10. Remove cylinder head. Refer to
Assembly
INFOID:0000000001547551
Assemble in the reverse order of disassembly.
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