Page 1721 of 3342
G6M0095
1. #1 SPARK PLUG
1) Disconnect battery ground cable.
B6M0552A
2) Remove #1 spark plug cord by pulling boot, not cord
itself.
B6M0553
3) Remove spark plug with the spark plug socket.
4) Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
G6M0095
2. #2 SPARK PLUG
1) Disconnect battery ground cable.
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6-1SERVICE PROCEDURE
3. Spark Plug
Page 1722 of 3342
B6M0554
2) Remove battery.
B6M0555A
3) Remove #2 spark plug cord by pulling boot, not cord
itself.
B6M0556
4) Remove spark plug with the spark plug socket.
5) Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
G6M0095
3. #3 SPARK PLUG
1) Disconnect battery ground cable.
26
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1723 of 3342
B6M0557A
2) Disconnect mass air flow sensor connector.
3) Remove four clips securing air cleaner upper cover.
B6M0558
4) Loosen the clamp screw and separate air cleaner upper
cover from air intake duct.
5) Remove air cleaner element.
B6M0559A
6) Remove #3 spark plug cord by pulling boot, not cord
itself.
B6M0560
7) Remove spark plug with the spark plug socket.
8) Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
27
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1724 of 3342
G6M0095
4. #4 SPARK PLUG
1) Disconnect battery ground cable.
B6M0554
2) Remove battery.
B6M0561
3) Remove washer tank mounting bolts.
B6M0562A
4) Disconnect washer tank connectors.
CAUTION:
Do not disconnect washer tank hoses as washer fluid
will leak out from washer tank.
B6M0575A
5) Move washer tank upward.
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6-1SERVICE PROCEDURE
3. Spark Plug
Page 1725 of 3342
B6M0563A
6) Remove #4 spark plug cord by pulling boot, not cord
itself.
B6M0564
7) Remove spark plug with the spark plug socket.
8) Installation is in the reverse order of removal.
Tightening torque (Spark plug):
20.6±2.9 N⋅m (2.10±0.30 kg-m, 15.19±2.14 ft-lb)
CAUTION:
The above torque should be only applied to new spark
plugs without oil on their threads.
In case their threads are lubricated, the torque should
be reduced by approximately 1/3 of the specified
torque in order to avoid over-stressing.
E: REMOVAL (2500 cc OUTBACK MODEL)
CAUTION:
All spark plugs installed on an engine, must be of the
same heat range.
Spark plug:
NGK: PFR5B-11
G6M0095
1. #1 SPARK PLUG
1) Disconnect battery ground cable.
29
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1726 of 3342
B6M0557A
2) Disconnect mass air flow sensor connector.
3) Remove four clips securing air cleaner upper cover.
B6M0558
4) Loosen the clamp screw and separate air cleaner upper
cover from air intake duct.
B6M0565A
5) Remove air cleaner element and air cleaner case.
B6M0566A
6) Remove #1 spark plug cord by pulling boot, not cord
itself.
B6M0567A
7) After connecting1spark plug socket,2extension and
3Universal Joint to each other, securely set them over the
spark plug in cylinder head.
8) Cover ABS pipes with rag to prevent damage.
1Spark plug socket 16 mm (5/8 in)
2Extension
3Universal Joint
4Extension
5Ratchet
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6-1SERVICE PROCEDURE
3. Spark Plug
Page 1727 of 3342
B6M0568A
NOTE:
Length L1 is important in making for easy removal.
It may be necessary to wrap points A and B with vinyl
tape to prevent them separating while working.
If they do separate, spark plug socket is left on the spark
plug and it is very difficult to remove.
An approximately 250 mm (9.84 in) long extension is
recommended to be connected to ratchet.
For spark plug socket, extension and Universal Joint, it
is recommended to use the following tools.
Spark plug socket : PROTO 5020-50
Extension : SNAP-ON FX1
Universal Joint : SNAP-ON FU80B
B6M0569A
9) Set4extension and5ratchet in turn onto the con-
nected tools in plug hole, and remove spark plug using
them.
G6M0095
2. #2 SPARK PLUG
1) Disconnect battery ground cable.
B6M0554
2) Remove battery.
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3. Spark Plug
Page 1728 of 3342
B6M0555A
3) Remove #2 spark plug cord by pulling boot, not cord
itself.
4) For subsequent procedures, refer to the procedure for
#1 spark plug.
CAUTION:
When removing spark plug, cover the ATF cooling
pipes with a rag to prevent damage.
G6M0095
3. #3 SPARK PLUG
1) Disconnect battery ground cable.
B6M0557A
2) Disconnect mass air flow sensor connector.
3) Remove four clips securing air cleaner upper cover.
B6M0558
4) Loosen the clamp screw and separate air cleaner upper
cover from air intake duct.
B6M0565A
5) Remove air cleaner element and air cleaner case.
32
6-1SERVICE PROCEDURE
3. Spark Plug