Infiniti G37 Coupe. Manual - part 625

OIL PAN (UPPER) AND OIL STRAINER

EM-75

< DISASSEMBLY AND ASSEMBLY >

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OIL PAN (UPPER) AND OIL STRAINER

Exploded View

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Disassembly and Assembly

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REMOVAL

CAUTION:

Never drain engine oil when the engine is hot to avoid the danger of being scalded.

1.

Remove oil level gauge, oil pressure switch and oil temperature sensor.

2.

Remove oil pan (lower). Refer to 

EM-42, "Exploded View"

.

1.

Oil level gauge

2.

Oil level gauge guide

3.

O-ring

4.

O-ring

5.

O-ring

6.

Oil cooler

7.

Connector bolt

8.

Oil filter

9.

Relief valve

10. Oil strainer

11.

Oil pressure switch

12. Oil temperature sensor

13. Washer

14. Oil pan (upper)

15. Drain plug

16. Drain plug washer

17. Oil pan (lower)

18. Rear plate cover

19. Rear cover plate (M/T models)

A.

Refer to 

LU-9

B.

To oil pump

C.

Oil pan side

Refer to 

GI-4, "Components"

 for symbols in the figure.

PBIC5312E

EM-76

< DISASSEMBLY AND ASSEMBLY >

OIL PAN (UPPER) AND OIL STRAINER

3.

Remove oil strainer.

4.

Loosen mounting bolts in the reverse order as shown in the fig-
ure with power tool to remove.

• Insert the seal cutter [SST: KV10111100 (J37228)] between oil

pan (upper) and lower cylinder block. Slide seal cutter by tap-
ping on the side of tool with a hammer. Remove oil pan
(upper).

CAUTION:

• Be careful not to damage the mating surfaces.
• Never insert a screwdriver, because this damages the

mating surfaces.

5.

Remove O-rings (2) from bottom of lower cylinder block (1) and
oil pump (3).

INSTALLATION

1.

Install oil pan (upper) as follows:

a.

Use a scraper (A) to remove old liquid gasket from mating sur-
faces.

CAUTION:

Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.
• Also remove old liquid gasket from mating surface of lower cyl-

inder block.

• Remove old liquid gasket from the bolt holes and threads.

b.

Install new O-rings (2) on the bottom of lower cylinder block (1)
and oil pump (3).

: Engine front

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: Engine front

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: Engine front

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OIL PAN (UPPER) AND OIL STRAINER

EM-77

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c.

Apply a continuous bead of liquid gasket with the tube presser
(commercial service tool) to the cylinder block mating surface of
oil pan (upper) to a limited portion as shown in the figure.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-15, "Recommended Chemical Products and Sealants"

.

CAUTION:

• For bolt holes with   marks (7 locations), apply liquid

gasket outside the holes.

• Attaching should be done within 5 minutes after coating.

d.

Install oil pan (upper).

CAUTION:

Never misalign both O-rings during installation.
• Tighten mounting bolts in numerical order as shown in the fig-

ure.

• There are two types of mounting bolts. Refer to the following

for locating bolts.

2.

Install oil strainer to oil pump.

3.

Install oil pan (lower). Refer to 

EM-42, "Exploded View"

.

4.

Install oil pan drain plug.
• Refer to the figure of components on the prior page for installation direction of drain plug washer. Refer

to 

EM-42, "Exploded View"

.

5.

Install in the reverse order of removal after this step.
NOTE:
Wait at least 30 minutes after oil pan is installed before pouring engine oil.

Inspection

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INSPECTION AFTER REMOVAL

Clean oil strainer if any object is attached.

INSPECTION AFTER INSTALLATION

1.

Check the engine oil level and adjust engine oil. Refer to 

LU-6, "Inspection"

.

2.

Start engine, and check there is no leakage of engine oil.

3.

Stop engine and wait for 10 minutes.

4.

Check the engine oil level again. Refer to 

LU-6, "Inspection"

.

a

: 4.0 - 5.0 mm (0.157 - 0.197 in)

: Engine front

: Engine front

M8 

×

 90 mm (3.54 in)

: 7, 10, 13

M8 

×

 25 mm (0.98 in)

: Except the above

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EM-78

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REAR TIMING CHAIN CASE

REAR TIMING CHAIN CASE

Exploded View

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1.

Timing chain (secondary)

2.

Camshaft sprocket (EXH)

3.

O-ring

4.

Timing chain (secondary)

5.

Camshaft sprocket (EXH)

6.

Internal chain guide

7.

Timing chain (primary)

8.

Camshaft sprocket (INT)

9.

Timing chain tensioner (primary)

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