2004 SUBARU FORESTER replace disc

CO(H4SO)-29
COOLING
Radiator
14) Detach the power steering hose from clip on ra-
diator.
15) Lift the radiator up and away from the vehicle.
2. TURBO MODEL
WARNING:
The radiator is pressurized. Wait until the en-
gine cools down before working on the radia-
tor.
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Remove the under cover.
5) Drain the engine coolant completely. CO(H4SO)-19, DRAINING OF ENGINE COOL-
ANT, REPLACEMENT, Engine Coolant.>
6) Disconnect the connectors of radiator main fan
motor (A) and sub fan motor (B).7) Disconnect the radiator outlet hose from thermo-
stat cover.
8) Disconnect the ATF cooler hose from ATF pipe.
(AT model) Plug the opennings in the hose and ra-
diator with caps in order to prevent ATF from leak-
ing.
9) Disconnect the oil cooler hose from oil cooler
pipe. (MT model with oil cooler)
Install the cap to prevent oil from leaking.
10) Lower the vehicle.
11) Remove the V-belt covers.
12) Disconnect the overflow hose.
CO-00037
FU-00009
CO-00013
(A)(B)
CO-00030
CO-00034
SC-00096

CO(H4SO)-35
COOLING
Radiator Main Fan and Fan Motor
8. Radiator Main Fan and Fan
Motor
A: REMOVAL
1. NON-TURBO MODEL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Lift-up the vehicle.
4) Remove the under cover.
5) Drain the coolant aprrox. 12 (1.06 US qt, 0.88
Imp qt). ENGINE COOLANT, REPLACEMENT, Engine
Coolant.>
6) Disconnect the connector of main fan motor (A)
and sub fan motor (B).
7) Remove the ATF hose from two clips of radiator
fan motor assembly. (AT model)
8) Lower the vehicle.
9) Disconnect the over flow hose.
10) Remove the reservoir tank.11) Remove the radiator fan motor assembly
mounting bolts.
12) Disconnect the radiator inlet hose from engine.
13) Detach the power steering hose from clip on ra-
diator.
14) Rise up the radiator fan motor assembly to re-
move it from vehicle.
FU-00009
CO-00013
(A)(B)
CO-00015
CO-00064
CO-00035
CO-00037
CO-00065

CO(H4SO)-36
COOLING
Radiator Main Fan and Fan Motor
2. TURBO MODEL
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
3) Remove the radiator upper bracket. (AT model)
4) Lift-up the vehicle.
5) Remove the under cover.
6) Drain the engine coolant approx. 12(1.06 US qt,
0.88 Imp qt). OF ENGINE COOLANT, REPLACEMENT, Engine
Coolant.>
7) Disconnect the radiator main fan motor connec-
tor (A) and sub fan motor connector (B).8) Remove the radiator under cover securing bolt.
(AT model)
9) Pull the radiator lower hose upward to space ra-
diator from radiator under cover. Remove the ATF
hose to radiator fan motor assembly two clips. (AT
model)
10) Lower the vehicle.
11) Remove the V-belt cover.
12) Disconnect the overflow hose.
13) Remove the reservoir tank.
14) Remove the radiator main fan motor assembly
securing bolt.
FU-00009
CO-00036
CO-00013
(A)(B)
CO-00070
CO-00143
CO-00015
CO-00064

CO(H4SO)-42
COOLING
Coolant Filler Tank
11.Coolant Filler Tank
A: REMOVAL
WARNING:
The radiator is pressurized. Wait until the en-
gine cools down before working on the radia-
tor.
1) Drain the coolant about 3.02 (3.2 US qt, 2.6 Imp
qt). GINE COOLANT, REPLACEMENT, Engine Cool-
ant.>
2) Remove the air cleaner upper cover and air in-
take boot. Cleaner.>
3) Remove the air cleaner element.
4) Disconnect the engine coolant hoses from cool-
ant filler tank.
5) Remove the bolts and nut which install coolant
filler tank.
6) Disconnect the engine coolant hose which con-
nects under side of coolant filler tank.
7) Remove the coolant filler tank.
B: INSTALLATION
1) Install in the reverse order of removal.
Tightening torque:
T1: 19 N
⋅m (1.9 kgf-m, 13.7 ft-lb)
T2: 21 N
⋅m (2.1 kgf-m, 15.2 ft-lb)
2) Fill engine coolant. ING OF ENGINE COOLANT, REPLACEMENT,
Engine Coolant.>
CO-00051
CO-00052
T2
T1
CO-00053

LU(H4SO)-2
LUBRICATION
General Description
1. General Description
A: SPECIFICATION
Lubrication methodForced lubrication
Oil pumpPump type Trochoid type
Number of teethInner rotor 9
Outer rotor 10
Outer rotor diameter×thicknessNon-turbo model 78×7 mm (3.07×0.28 in)
Turbo model 78×10 mm (3.07×0.39 in)
Tip clearance between inner and outer rotorStandard 0.04 — 0.14 mm (0.0016 — 0.0055 in)
Limit 0.18 mm (0.0071 in)
Side clearance between inner rotor and pump
caseStandard 0.02 — 0.07 mm (0.0008 — 0.0028 in)
Limit 0.12 mm (0.0047 in)
Case clearance between outer rotor and pump
caseStandard 0.10 — 0.175 mm (0.0039 — 0.0069 in)
Limit 0.20 mm (0.0079 in)
Capacity at
80°C (176°F)Non-turbo
model
600 rpmDischarge
pressure98 kPa (1.0 kg/cm
2, 14 psi)
Discharge
quantity3.22 (3.4 US qt, 2.8 Imp qt)/min.
5,000 rpmDischarge
pressure294 kPa (3.0 kg/cm
2, 43 psi)
Discharge
quantity32.62 (34.4 US qt, 28.7 Imp qt)/min.
Turbo model
600 rpmDischarge
pressure98 kPa (1.0 kg/cm
2, 14 psi)
Discharge
quantity4.62 (4.9 US qt, 4.0 Imp qt)/min.
5,000 rpmDischarge
pressure294 kPa (3.0 kg/cm
2, 43 psi)
Discharge
quantity47.02 (49.7 US qt, 41.4 Imp qt)/min.
Relief valve operation pressureNon-turbo model
490 kPa (5.0 kg/cm
2, 71 psi)
Turbo model
588 kPa (6.0 kg/cm
2, 85 psi)
Oil filterTy p eFull-flow filter type
Filtration areaNon-turbo
760 cm
2 (118 sq in)
Tu r b o
800 cm
2 (124 sq in)
By-pass valve opening pressureNon-turbo
157 kPa (1.60 kg/cm
2, 22.8 psi)
Tu r b o
160 kPa (1.63 kg/cm
2, 23.2 psi)
Outer diameter×widthNon-turbo 80×70 mm (3.15×2.76 in)
Tu r b o 6 8×65 mm (2.68×2.56 in)
Oil filter to engine thread size M 20×1.5
Oil pressure
switchType Immersed contact point type
Working voltage — wattage 12 V — 3.4 W or less
Warning light activation pressure
14.7 kPa (0.15 kg/cm
2, 2.1 psi)
Proof pressure
More than 981 kPa (10 kg/cm
2, 142 psi)
Oil capacity (at replacement) 4.02 (4.2 US qt, 3.5 Imp qt)

LU(H4SO)-5
LUBRICATION
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 yourself, because each
part in the vehicle is hot after running.
 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 electrical connectors of
sensors or units, be sure to disconnect the ground
cable from battery.
(1) Plug (16) Oil pressure switch (33) O-ring
(2) Gasket (17) Oil filler cap (34) Oil filter connector (model without
oil cooler)
(3) Relief valve spring (18) O-ring
(4) Relief valve (19) Oil filler duct (35) Plug (model without oil cooler)
(5) Oil seal (20) O-ring (36) O-ring
(6) Oil pump case (21) Rocker cover
(7) Inner rotor (22) Oil strainerTightening torque: N
⋅m (kgf-m, ft-lb)
(8) Outer rotor (23) GasketT1: 5 (0.5, 3.6)
(9) Oil pump cover (24) Oil level gauge guideT2: 6.4 (0.65, 4.7)
(10) Oil filter (25) Oil panT3: 10 (1.0, 7.0)
(11) Oil cooler connector (model with
oil cooler)(26) Oil level gaugeT4: 44 (4.5, 32.5)
(27) Metal gasketT5: 69 (7.0, 50.9)
(12) Water by-pass pipe (model with oil
cooler)(28) Drain plugT6: 6.4 (0.65, 4.7)
(29) O-ringT7: 25 (2.5, 18.1)
(13) Oil cooler (model with oil cooler) (30) Adapter (1)T8: 44 (4.5, 32.5)
(14) O-ring (31) Adapter (2)T9: 54 (5.5, 40)
(15) Oil pump ASSY (32) Baffle plate

LU(H4SO)-9
LUBRICATION
Oil Pressure System
B: INSPECTION
Step Check Yes No
1 CHECK COMBINATION METER.
1) Turn the ignition switch to ON. (engine
OFF)
2) Check other warning lights.Does the warning lights illumi-
nate?Go to step 2.Repair or replace
the combination
meter. 4, INSPECTION,
Combination
Meter System.>
2 CHECK HARNESS CONNECTOR BETWEEN
COMBINATION METER AND OIL PRES-
SURE SWITCH.
1) Turn the ignition switch to OFF.
2) Disconnect the connector from oil pressure
switch.
3) Turn the ignition switch to ON.
4) Measure the voltage of harness between
the combination meter connector and chassis
ground.
Connector & terminal
(E11) No. 1 (+) — Chassis ground (
−):Is the voltage more than 10 V? Replace the oil
pressure switch.Go to step 3.
3 CHECK COMBINATION METER.
1) Turn the ignition switch to OFF.
2) Remove the combination meter.
3) Measure the resistance of combination
meter.
Te r m i n a l
No. B9 — No. A3:Is the resistance less than 10
Ω?Replace the har-
ness connector
between combina-
tion meter and oil
pressure switch.Repair or replace
the combination
meter and the oil
pressure switch
warning light bulb.

LU(H4SO)-24
LUBRICATION
Engine Lubrication System Trouble in General
9. Engine Lubrication System Trouble in General
A: INSPECTION
Before performing diagnostics, make sure that the engine oil level is correct and no oil leakage exists.
Trouble Possible cause Corrective action
1. Warning light remains
on.1) Oil pressure switch
failureCracked diaphragm or oil leakage within switch Replace.
Broken spring or seized contacts Replace.
2) Low oil pressureClogged oil filter Replace.
Malfunction of oil by-pass valve of oil filter Clean or replace.
Malfunction of oil relief valve of oil pump Clean or replace.
Clogged oil passage Clean.
Excessive tip clearance and side clearance of oil
pump rotor and gearReplace.
Clogged oil strainer or broken pipe Clean or replace.
3) No oil pressureInsufficient engine oil Replenish.
Broken pipe of oil strainer Replace.
Stuck oil pump rotor Replace.
2. Warning light does
not go on.1) Malfunction of combination meter Replace.
2) Poor contact of switch contact points Replace.
3) Disconnection of wiring Repair.
3. Warning light flickers
momentarily.1) Poor contact at terminals Repair.
2) Defective wiring harness Repair.
3) Low oil pressureCheck for the same
possible causes as
listed in 1. — 2).