Subaru Legacy IV (2008 year). Service manual — part 505
SP(H6DO)-2
General Description
SPEED CONTROL SYSTEMS
1. General Description
A: SPECIFICATION
Specifications for the 3.0 L DOHC non-turbo model
are the same as the 2.0 L SOHC non-turbo model.
<Ref. to SP(H4SO)-2, General Description.>
IG(H6DO)-2
General Description
IGNITION
1. General Description
A: SPECIFICATION
B: COMPONENT
Item
Specification
Ignition coil
Type
FK0333
Ignition system
Independent ignition coil
Manufacturer
Diamond Electric
Spark plug
Manufacturer and type
NGK: ILFR6B
Thread size (diameter, pitch, length)
mm
14, 1.25, 26.5
Spark plug gap
mm (in)
0.7 — 0.8 (0.028 — 0.031)
Electrode
Iridium
(1)
Spark plug
(2)
Ignition coil
Tightening torque:N·m (kgf-m, ft-lb)
T1: 16 (1.6, 11.8)
T2: 21 (2.1, 15.5)
IG-00052
(1)
(1)
(2)
(2)
T1
T2
T2
T1
IG(H6DO)-3
General Description
IGNITION
C: CAUTION
• Wear appropriate work clothing, including a cap,
protective goggles and protective shoes when per-
forming any work.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust and dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly and replacement.
• Vehicle components are extremely hot after driv-
ing. Be wary of receiving burns from heated parts.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting connectors of sensors or
units, be sure to disconnect the ground cable from
the battery.
IG(H6DO)-4
Spark Plug
IGNITION
2. Spark Plug
A: REMOVAL
Spark plug:
Refer to “SPECIFICATION” for the spark
plug. <Ref. to IG(H6DO)-2, SPECIFICATION,
General Description.>
1. RH SIDE
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Remove the air cleaner case. <Ref. to
IN(H6DO)-5, REMOVAL, Air Cleaner Case.>
4) Remove the bracket (A).
5) Disconnect the connector (B) from ignition coil.
6) Remove the ignition coil.
NOTE:
Turn the #5 ignition coil to remove it.
7) Remove the spark plug with a spark plug socket.
2. LH SIDE
1) Remove the collector cover.
2) Remove the battery and battery carrier. <Ref. to
SC(H4SO)-20, REMOVAL, Battery.>
3) Remove the bracket (A).
4) Disconnect the connector (B) from ignition coil.
5) Remove the ignition coil.
NOTE:
Turn the #6 ignition coil to remove it.
IN-00203
IG-02004
(B)
(A)
(A) Ratchet handle
(B) Extension bar
(C) Universal joint
(D) Spark plug socket
IG-02005
(D)
(C)
(B)
(B)
(A)
IG-02011
IG-02006
(A)
(B)
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