1995 SUBARU LEGACY heater

5) Check idle speed when unloaded. (With headlights,
heater fan, rear defroster, radiator fan, air conditioning, etc.
OFF)
Idle speed (No load and gears in neutral (MT) or N or
P (AT) position):
700±100 rpm
6) Check idle speed when loaded. (Turn air conditioning
switch to“ON”and operate compressor for at least one
minute before measurement.)
Idle speed [A/C“ON”, no load and gears in neutral
(MT) or N or P (AT) position]:
850±50 rpm
CAUTION:
Never rotate idle adjusting screw. If idle speed is out
of specifications, refer to General On-board Diagnosis
Table under “2-7 On-Board Diagnostics II System”.
4
2-2
3. Engine Idle Speed

1. Engine Coolant Pump
G2M0201

1Engine coolant pump ASSY


2Gasket


3Heater hose


4Thermostat


5Gasket


6Thermostat case
Tightening torque: N⋅m (kg-m, ft-lb)
T1: First 10+4
0(1.0+0.4
0, 7.2+2.9
0)
Second 10+4
0(1.0+0.4
0, 7.2+2.9
0)
T2: 6.4±0.5 (0.65±0.05, 4.7±0.4)
3
2-5COMPONENT PARTS
1. Engine Coolant Pump

G2M0210
12) Remove tensioner bracket.
13) Disconnect heater hose from engine coolant pump.
14) Remove engine coolant pump.
B: INSPECTION
1) Check engine coolant pump bearing for smooth rota-
tion.
2) Check engine coolant pump pulley for abnormalities.
G2M0211
3) Using a dial gauge, measure impeller runout in thrust
direction while rotating the pulley.
“Thrust”runout limit:
0.5 mm (0.020 in)
G2M0212
4) Check clearance between impeller and pump case.
Clearance between impeller and pump case:
Standard
0.5—0.7 mm (0.020—0.028 in)
Limit
1.0 mm (0.039 in)
5) After engine coolant pump installation, check pulley
shaft for engine coolant leaks. If leaks are noted, replace
engine coolant pump assembly.
10
2-5SERVICE PROCEDURE
2. Engine Coolant Pump

B2M0138
5) Disconnect heater inlet hose.
B2M0139
6) Disconnect radiator inlet hose from engine coolant pipe.
B2M0141
7) Remove bolts which install engine coolant pipe on cyl-
inder block.
B2M0141
B: INSTALLATION
1) Install engine coolant pipe on cylinder block.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
CAUTION:
Use a new O-ring.
B2M0139
2) Connect radiator inlet hose.
17
2-5SERVICE PROCEDURE
7. Engine Coolant Pipe

B2M0138
3) Connect heater inlet hose.
B2M0160
4) Install intake manifold.

G6M0095
5) Connect ground cable to battery terminal.
18
2-5SERVICE PROCEDURE
7. Engine Coolant Pipe

(3) Disconnect the following hoses.


1Brake booster vacuum hose


2Heater inlet and outlet hoses
B2M0018C
B2M0026AB2M0027
13
2-11SERVICE PROCEDURE
2. Engine

11) Install front exhaust pipe and center exhaust pipe.
12) Connect hoses, connectors and cables.
(1) Connect the following hoses.
Fuel delivery hose, return hose and evaporation
hose
Heater inlet and outlet hoses
Brake booster vacuum hose
(2) Connect the following connectors.
Engine ground terminal
Engine harness connectors
Front oxygen sensor connector
Rear oxygen sensor connector
Alternator connector and terminal
A/C compressor connectors (With A/C)
(3) Connect the following cables.
Accelerator cable
Cruise control cables (With cruise control)
Clutch cable
Clutch release spring
CAUTION:
After connecting each cable, adjust them.
G2M0271
13) Install air intake system.
(1) Install air cleaner element.
(2) Install air intake duct with air cleaner upper cover.
B2M0030
(3) Connect connector to mass air flow sensor.
22
2-11SERVICE PROCEDURE
2. Engine

2. CHECKING THE HYDRAULIC UNIT OPERATION BY
PRESSURE GAUGE
1) Remove the FL and FR pipes from the hydraulic unit.
G4M0460
2) Connect two pressure gauges to the hydraulic unit.
CAUTION:

Pressure gauges used exclusively for brake fluid
must be used.

Do not employ pressure gauge previously used for
transmission since the piston seal is expanded which
may lead to malfunction of the brake.
3) Bleed air from the pressure gauges.
4) Perform sequence control.
B4M0082A
(1) Connect diagnosis terminals to 3 terminals (K) and
6 terminals (L) of the diagnosis connector beside driver
seat heater unit.
(2) Turn ignition switch ON.
(3) The ABS warning light comes on.
(4) Depress the brake pedal within 0.5 seconds after
the warning light goes out so that the pressure gauge
registers a pressure equal to the initial value.
CAUTION:
Do not depress the clutch pedal.
NOTE:
The engine must not be operating.
68
4-4SERVICE PROCEDURE
15. Hydraulic Unit for ABS System