Infiniti G37 Coupe. Manual — part 884
LU-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tools
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Tool number
(Kent-Moore No.)
Tool name
Description
ST25051001
(J25695-1)
Oil pressure gauge
Measuring oil pressure
Maximum measuring range: 2,452 kPa (25
kg-cm
2
, 356 psi)
ST25052000
(J25695-2)
Hose
Adapting oil pressure gauge to oil pan (upper)
KV10115801
(J38956)
Oil filter wrench
Removing and installing oil filter
a: 64.3 mm (2.531 in)
NT050
S-NT559
S-NT375
Tool name
Description
Tube presser
Pressing tube of liquid gasket
NT052
PREPARATION
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Power tools
Loosening nuts and bolts
Deep socket
Removing and installing oil pressure switch
a: 27 mm (1.06 in)
Tool name
Description
PBIC0190E
PBIC4066E
LU-6
< ON-VEHICLE MAINTENANCE >
ENGINE OIL
ON-VEHICLE MAINTENANCE
ENGINE OIL
Inspection
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ENGINE OIL LEVEL
NOTE:
Before starting engine, put vehicle horizontally and check the engine oil level. If engine is already started, stop
it and allow 10 minutes before checking.
1.
Pull out oil level gauge and wipe it clean.
2.
Insert oil level gauge and check the engine oil level is within the
range (A) shown in the figure.
3.
If it is out of range, adjust it.
NOTE:
When checking the engine oil level, insert oil level gauge (1)
with its tip aligned with oil level gauge guide.
ENGINE OIL APPEARANCE
• Check engine oil for white turbidity or heavy contamination.
• If engine oil becomes turbid and white, it is highly probable that it is contaminated with engine coolant.
Repair or replace damaged parts.
ENGINE OIL LEAKAGE
Check for engine oil leakage around the following areas:
• Oil pans (lower and upper)
• Oil pan drain plug
• Oil pressure switch
• Oil filter
• Oil cooler
• Valve timing control cover
• Mating surface between cylinder head and rocker cover
• Mating surface between front timing chain case and rear timing chain case
• Mating surface between rear timing chain case and cylinder head
• Mating surface between rear timing chain case and cylinder block
• Mating surface between rear timing chain case and oil pan (upper)
• Mating surface between cylinder block and cylinder head
• Mating surface between lower cylinder block and cylinder block
• Crankshaft oil seals (front and rear)
• Camshaft position sensor (PHASE) and exhaust valve timing control position sensor
OIL PRESSURE CHECK
JPBIA0070ZZ
2
: Engine cover
: Engine front
JPBIA0071ZZ
ENGINE OIL
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WARNING:
• Be careful not to get burn yourself, as engine oil may be hot.
• Oil pressure check should be done in “Neutral position” (M/T models) or “Parking position” (A/T
models).
1.
Check the engine oil level. Refer to
.
2.
Remove engine undercover with power tool.
3.
Disconnect harness connector at oil pressure switch, and
remove oil pressure switch using deep socket (commercial ser-
vice tool).
CAUTION:
Never drop or shock oil pressure switch.
4.
Install the oil pressure gauge [SST: ST25051001 (J25695-1)] (A)
and hose [SST: ST25052000 (J25695-2)] (B).
5.
Start the engine and warm it up to normal operating temperature.
6.
Check the engine oil pressure with engine running under no-load.
NOTE:
When the engine oil temperature is low, the engine oil pressure becomes high.
If difference is extreme, check engine oil passage and oil pump for engine oil leaks.
7.
After the inspections, install oil pressure switch as follows:
a.
Remove old liquid gasket adhering to oil pressure switch and the mating surface.
b.
Apply liquid gasket and tighten oil pressure switch to the specification.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-15, "Recommended Chemical Prod-
.
c.
After warming up engine, check there is no leakage of engine oil with running engine.
Draining
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WARNING:
• Be careful not to get burn yourself, as engine oil may be hot.
• Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin
contact with used engine oil. If skin contact is made, wash thoroughly with soap or hand cleaner as
soon as possible.
1.
Warm up the engine, and check for engine oil leakage from engine components. Refer to
2.
Stop the engine and wait for 10 minutes.
1
: Oil pressure switch
: Engine front
PBIC5237E
JPBIA0074ZZ
Engine oil pressure
: Refer to
Tightening torque
: Refer to
.
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