Page 1641 of 2890
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.
27
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1642 of 2890
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.
28
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1643 of 2890
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
29
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1644 of 2890
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.
30
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1645 of 2890
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.
31
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1646 of 2890
B6M0570A
6) Remove #3 spark plug cord by pulling boot, not cord
itself.
7) For subsequent procedures, refer to the procedure for
#1 spark plug.
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.
32
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1647 of 2890
![SUBARU LEGACY 1996 Service Repair Manual B6M0575A
5) Move washer tank upward.
B6M0563A
6) Remove #4 spark plug cord by pulling boot, not cord
itself.
7) For subsequent procedures, refer to the procedure for
#1 spark plug. <Ref. to 6-1 [W3E1] SUBARU LEGACY 1996 Service Repair Manual B6M0575A
5) Move washer tank upward.
B6M0563A
6) Remove #4 spark plug cord by pulling boot, not cord
itself.
7) For subsequent procedures, refer to the procedure for
#1 spark plug. <Ref. to 6-1 [W3E1]](/manual-img/17/57433/w960_57433-1646.png)
B6M0575A
5) Move washer tank upward.
B6M0563A
6) Remove #4 spark plug cord by pulling boot, not cord
itself.
7) For subsequent procedures, refer to the procedure for
#1 spark plug.
CAUTION:
When removing spark plug, cover the ATF coolig pipes
with a rag to prevent damage.
B6M0572A
NOTE:
For easier removal of spark plug, diagonally insert the tools
from the direction of battery stand into plug hole as shown
in figure.
B6M0573
F: INSTALLATION (2500 cc OUTBACK
MODEL)
1. #1 SPARK PLUG
1) After setting spark plug in spark plug socket, connect
the spark plug socket, extension and Universal Joint to
each other.
2) Screw spark plug into cylinder head using the con-
nected tools above mentioned. At this point, it is necessary
to support the rear end of the tools with fingertips.
3) When spark plug is screwed in two or three turns, tem-
porarily disconnect the tools connected in step 1) above.
4) Confirm that spark plug is screwed into the cylinder
head properly by touching it with finger. If it is difficult to
reach it by hand, confirm its condition by using mirror and
suchlike.
5) Cover ABS pipes with rag to prevent damage.
33
6-1SERVICE PROCEDURE
3. Spark Plug
Page 1648 of 2890

B6M0574
6) Re-insert the tools disconnected in step 3) into plug
hole, and set them again over the spark plug.
7) Set extension and ratchet in turn onto the connected
tools in plug hole, and tighten spark plug to the specified
torque.
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.
8) The subsequent procedures are in reverse order of #1
spark plug removal.
2. #2 SPARK PLUG
CAUTION:
When installing spark plug, cover the ATF cooling
pipes with a rag to prevent damage.
1) Carry out steps 1), 2), 3), 4), 6) and 7) of #1 spark plug
installation procedure.
2) Proceed in reverse order of #2 spark plug removal.
3. #3 SPARK PLUG
1) Carry out steps 1) through 7) of #1 spark plug installa-
tion procedure.
2) Proceed in reverse order of #3 spark plug removal.
4. #4 SPARK PLUG
CAUTION:
When installing spark plug, cover the ATF cooling
pipes with a rag to prevent damage.
1) Carry out steps 1), 2), 3), 4), 6) and 7) of #1 spark plug
installation procedure.
2) Proceed in reverse order of #4 spark plug removal.
B6M0160
4. Ignition Coil
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
2) Disconnect connector from ignition coil.
3) Remove ignition coil.
4) Installation is in the reverse order of removal.
CAUTION:
Be sure to connect wires to their proper positions.
Failure to do so will damage unit.
34
6-1SERVICE PROCEDURE
3. Spark Plug - 4. Ignition Coil