Subaru Legacy III (2000-2003 year). Service manual — part 200
IG(H4SOw/oOBD)-2
IGNITION
GENERAL DESCRIPTION
1. General Description
A: SPECIFICATIONS
Item
Designation
Ignition coil and ignitor
assembly
Model
FH0137
Manufacturer
DIAMOND
Primary coil resistance
0.73
Ω±
10%
Secondary coil resistance
12.8 k
Ω±
15%
Insulation resistance between primary terminal and
case
More than 100 M
Ω
Spark plug
Type and manufacturer
Without catalytic con-
verter
BKR6E . . .. NGK
With catalytic converter
RC10YC4 . . .. CHAMPION
BKR5E-11 . . .. NGK (Alternate)
Thread size
mm
14, P = 1.25
Spark gap
Without catalytic
converter
mm (in)
0.7 — 0.8 (0.028 — 0.031)
With catalytic
converter
mm (in)
1.0 — 1.1 (0.039 — 0.043)
IG(H4SOw/oOBD)-3
IGNITION
GENERAL DESCRIPTION
B: COMPONENT
(1) Spark plug
(4) Spark plug cord (#2, #4)
Tightening torque: N·m (kgf-m, ft-lb)
(2) Spark plug cord (#1, #3)
T1: 21 (2.1, 15)
(3) Ignition coil and ignitor ASSY
T2: 6.4 (0.65, 4.7)
IG-00036
T2
T1
T1
( 2 )
( 2 )
( 1 )
( 4 )
( 4 )
( 3 )
( 1 )
IG(H4SOw/oOBD)-4
IGNITION
GENERAL DESCRIPTION
C: CAUTION
• Wear working clothing, including a cap, protec-
tive goggles, and protective shoes during opera-
tion.
• Remove contamination including dirt and corro-
sion before removal, installation or disassembly.
• Keep the disassembled parts in order and pro-
tect them from dust or dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary re-
moval, installation, disassembly, and replacement.
• Be careful not to burn your hands, because each
part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or safety stands at the specified
points.
• Before disconnecting electrical connectors of
sensors or units, be sure to disconnect ground ca-
ble from battery.
IG(H4SOw/oOBD)-5
IGNITION
SPARK PLUG
2. Spark Plug
A: REMOVAL
CAUTION:
All spark plugs installed on an engine, must be
of the same heat range.
Spark plug:
With catalytic converter
CHAMPION: RC10YC4
NGK: BKR5E-11 (Alternate)
Without catalytic converter
NGK: BKR6E
1. RH SIDE
1) Disconnect battery ground cable.
2) Remove resonator chamber. <Ref. to IN(H4SO)-
8, REMOVAL, Resonator Chamber.>
3) Remove spark plug cords by pulling boot, not
cord itself.
4) Remove spark plugs with the spark plug socket.
2. LH SIDE
1) Disconnect battery ground cable.
2) Disconnect washer motor connector.
3) Disconnect rear window glass washer hose from
washer motor, then plug connection with a suitable
cap.
4) Remove the two bolts which hold the washer
tank, then take the tank away from the working ar-
ea.
5) Remove spark plugs cord by pulling boot, not
cord itself.
FU-00009
IG-00070
IG-00071
FU-00009
IG-00019
IG-00020
IG-00072
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