Subaru Legacy IV (2008 year). 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)