Infiniti M45 (Y34). Manual — part 523
SPARK PLUG (PLATINUM-TIPPED TYPE)
EM-29
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EM
SPARK PLUG (PLATINUM-TIPPED TYPE)
PFP:22401
Removal and Installation
ABS004RS
REMOVAL
1.
Remove ignition coil. Refer to
EM-28, "Removal and Installation"
2.
Remove spark plug with the spark plug wrench (commercial ser-
vice tool).
INSPECTION AFTER REMOVAL
●
Use standard type spark plug for normal condition.
The hot type spark plug is suitable when fouling occurs with the standard type spark plug under conditions
such as:
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Frequent engine starts
●
Low ambient temperatures
The cold type spark plug is suitable when spark knock occurs with the standard type spark plug under condi-
tions such as:
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Extended highway driving
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Frequent high engine revolution
CAUTION:
●
Do not drop or shock spark plug.
●
Do not use a wire brush for cleaning.
●
If plug tip is covered with carbon, spark plug cleaner may
be used.
SEM294A
Make
NGK
Standard type
PLFR5A-11
Hot type
PLFR4A-11
Cold type
PLFR6A-11
Gap (Nominal)
: 1.1 mm (0.043 in)
Cleaner air pressure:
Less than 588 kPa (5.9 bar, 6 kg/cm
2
, 85 psi)
Cleaning time:
Less than 20 seconds
SMA773C
EM-30
SPARK PLUG (PLATINUM-TIPPED TYPE)
●
Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Install in the reverse order of removal.
SMA806CA
Spark plug:
: 24.6 N·m (2.5 kg-m, 18 ft-lb)
FUEL INJECTOR AND FUEL TUBE
EM-31
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FUEL INJECTOR AND FUEL TUBE
PFP:16600
Removal and Installation
ABS000LR
CAUTION:
Do not remove or disassemble parts unless instructed as shown in the figure.
REMOVAL
1.
Remove engine cover with power tool. Refer to
2.
Release fuel pressure. Refer to
EC-46, "FUEL PRESSURE RELEASE"
1.
Fuel injector sub harness (right)
2.
Centralized underfloor piping
3.
Fuel feed hose
4.
Quick connector cap
5.
O-ring
6.
Fuel damper (right)
7.
Fuel tube (right)
8.
Spacer
9.
Fuel feed damper
10.
Fuel damper and fuel hose assem-
bly
11.
Clip
12. O-ring (Green)
13.
Fuel injector
14.
O-ring (Black)
15. Fuel tube (left)
16.
Fuel injector sub harness (left)
PBIC3088E
EM-32
FUEL INJECTOR AND FUEL TUBE
3.
Disconnect fuel feed hose on engine side as the following:
(Excepting to confirm whether or not there is quick connector
cap, perform same procedure for the side of centralized under-
floor piping as well.)
a.
Remove quick connector cap from quick connector connection.
(engine side only)
b.
Disconnect quick connector from fuel tube (fuel feed damper) as the following:
CAUTION:
Disconnect quick connector by using the quick connector release (SST: J-45488), not by picking
out retainer tabs (centralized under-floor piping side).
i.
With the sleeve side of the quick connector release facing quick connector, install the quick connector
release onto fuel tube.
ii.
Insert the quick connector release into quick connector until
sleeve contacts and goes no further. Hold the quick connector
release on that position.
CAUTION:
Inserting the quick connector release hard will not discon-
nect quick connector. Hold the quick connector release
where it contacts and goes no further.
iii.
Draw and pull out quick connector straight from fuel tube.
CAUTION:
●
Pull quick connector holding “A” position as shown in
the figure.
●
Do not pull with lateral force applied. O-ring inside quick connector may be damaged.
●
Prepare container and cloth beforehand as fuel will leak out.
●
Avoid fire and sparks.
●
Keep parts away from heat source. Especially, be careful when welding is performed around
them.
●
Do not expose parts to battery electrolyte or other acids.
●
Do not bend or twist connection between quick connector and fuel feed hose during installa-
tion/removal.
SBIA0353E
SBIA0354E
KBIA0702E
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