Infiniti G37 Coupe. Manual - part 624

ENGINE ASSEMBLY

EM-71

< REMOVAL AND INSTALLATION >

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

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

EM-67, "Exploded View"

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

CL-19, "Exploded View"

• 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.

Remove pilot converter (A/T models) using the pilot bushing
puller [SST: ST1661001 (J-23907)] (A) as necessary.

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

EM-28, "Exploded View"

- Remove intake manifold. Refer to

EM-31, "Exploded View"

- Remove fuel injector and fuel tube assembly. Refer to

EM-36, "Exploded View"

- Remove ignition coil. Refer to

EM-45, "Exploded View"

- Remove rocker cover. Refer to

EM-45, "Exploded View"

- Remove exhaust manifold. Refer to

EM-33, "Exploded View"

- Other removable brackets.

NOTE:

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ENGINE STAND SETTING

EM-73

< DISASSEMBLY AND ASSEMBLY >

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.

Drain engine oil. Refer to

LU-7, "Draining"

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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: Washer

: Plug

: Drain plug

: Engine front

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