Infiniti Q45 (FY33). Manual — part 504
PEF823K
Changing Fuel Filter
WARNING:
Before removing fuel filter, release fuel pressure from fuel line
to eliminate danger.
1.
Start engine.
2.
Perform “FUEL PRESSURE RELEASE” in “WORK
SUPPORT” mode with CONSULT-II.
3.
After engine stalls, crank engine two or three times to
make sure that fuel pressure is released.
4.
Turn ignition switch off.
SEF111T
1. Remove fuel pump fuse.
2. Start engine.
3.
After engine stalls, crank engine two or three times to
make sure that fuel pressure is released.
4. Turn ignition switch off and install fuel pump fuse.
SMA888C
5.
Loosen fuel hose clamps.
6.
Replace fuel filter.
I
Be careful not to spill fuel over engine compartment.
Place a shop towel to absorb fuel.
I
Use a high-pressure type fuel filter. Do not use a synthetic
resinous fuel filter.
I
When tightening fuel hose clamps, refer to “Checking Fuel
Lines”.
SMA889C
Changing Air Cleaner Filter
The viscous paper type filter does not need cleaning.
GI
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
ENGINE MAINTENANCE
MA-13
SMA890C
SMA390C
Changing Engine Oil
WARNING:
I
Be careful not to burn yourself, as the engine oil is hot.
I
Prolonged and repeated contact with used engine oil may
cause skin cancer; try to avoid direct skin contact with
used oil. If skin contact is made, wash thoroughly with
soap or hand cleaner as soon as possible.
1.
Warm up engine, and check for oil leakage from engine com-
ponents.
2.
Stop engine and wait more than 15 minutes.
3.
Remove drain plug and oil filler cap.
4.
Drain oil and refill with new engine oil.
Oil specifications and viscosity:
I
API Certification Mark
I
API grade SG/SH, Energy Conserving I & II or
API grade SJ, Energy Conserving
I
ILSAC grade GF-I & GF-II
I
See “RECOMMENDED FLUIDS AND
LUBRICANTS” (MA-8).
Oil capacity (Approximately):
Drain and refill
With oil filter
5.3
(5-5/8 US qt, 4-5/8 Imp qt)
Without oil filter
5.0
(5-1/4 US qt, 4-3/8 Imp qt)
Dry engine (engine overhaul)
6.2
(6-1/2 US qt, 5-1/2 Imp qt)
CAUTION:
I
Be sure to clean drain plug and install with new washer.
Drain plug:
: 29 - 39 N
⋅
m (3.0 - 4.0 kg-m, 22 - 29 ft-lb)
I
The refill capacity depends on the oil temperature and
drain time. Use these specifications for reference only.
Always use the dipstick to determine when the proper
amount of oil is in the engine.
I
Make sure direction of oil level gauge is correct before
checking oil level.
5.
Warm up engine and check area around drain plug and oil fil-
ter for oil leakage.
6.
Stop engine and wait for more than 15 minutes.
7.
Check oil level.
Changing Oil Filter
1.
Remove oil filter from underneath the engine compartment
with a suitable tool.
WARNING:
Be careful not to burn yourself, as the engine and the engine
oil are hot.
ENGINE MAINTENANCE
MA-14
SMA010
2.
Clean oil filter mounting surface on cylinder block. Coat rubber
seal of new oil filter with engine oil.
I
Oil filter is provided with a relief valve. Use Genuine
Nissan oil filter or equivalent.
SMA702C
3.
Screw in the oil filter until a slight resistance is felt, then tighten
additionally more than 2/3 turn.
4.
Add engine oil.
Refer to Changing Engine Oil (MA-14).
I
Clean excess oil from engine block.
SMA891C
Changing Spark Plugs
1.
Remove air duct.
2.
Remove ornament cover.
3.
Disconnect ignition coil harness connector.
4.
Loosen ignition coil fixing bolts and pull out ignition coils.
SMA581C
5.
Remove spark plugs with suitable spark plug wrench.
Spark plug (Platinum-tipped type):
Make
NGK
Standard type
PFR5G-11
Hot type
PFR4G-11
Cold type
PFR6G-11
Use standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling may occur with the
standard type spark plug such as:
I
frequent engine starts
I
low ambient temperatures
The cold type spark plug is suitable when spark knock may occur
with the standard type spark plug such as:
I
extended highway driving
I
frequent high engine revolution
Gap (Nominal): 1.1 mm (0.043 in)
: 20 - 29 N
⋅
m (2.0 - 3.0 kg-m, 14 - 22 ft-lb)
GI
EM
LC
EC
FE
AT
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
ENGINE MAINTENANCE
Changing Oil Filter (Cont’d)
MA-15
SMA773C
I
Do not use a wire brush for cleaning.
I
If plug tip is covered with carbon, spark plug cleaner may
be used.
Cleaner air pressure:
Less than 588 kPa (6 kg/cm
2
, 85 psi)
Cleaning time:
Less than 20 seconds
SMA806C
I
Checking and adjusting plug gap is not required.
SMA951CA
Checking EVAP Vapor Purge Lines
1.
Visually inspect EVAP vapor purge lines for improper
attachment, cracks, damage, loose connections, chafing or
deterioration.
2.
Inspect vacuum relief valve of fuel tank filler cap for clogging,
sticking, etc.
Refer to EC section, “EVAPORATIVE EMISSION SYSTEM”.
SMA950CA
ENGINE MAINTENANCE
Changing Spark Plugs (Cont’d)
MA-16
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