Impreza 2.5 RS Sedan AWD F4-2.5L SOHC (2002)
Water Pump: Specifications
Water pump
Type
Centrifugal impeller type
Discharge performance I
Discharge
20 L /min.
Pump speed - total engine coolant head
700 rpm - 0.3 mAq
Engine coolant temperature
85 deg C
Discharge performance II
Discharge
100 L/min.
Pump speed - total engine coolant head
3,000 rpm - 5.0 mAq
Engine coolant temperature
85 deg C
Discharge performance III
Discharge
200 L/min.
Pump speed - total engine coolant head
6,000 rpm - 23.0 mAq
Engine coolant temperature
85 deg C
Impeller diameter
76 mm
Number of impeller vanes
8
Pump pulley diameter
60 mm
Clearance between impeller and case Standard
0.5 - 0.7 mm
Limit
1.0 mm
"Thrust" runout of impeller end
0.5 mm
Water pump assy.
First
12 Nm
Second
12 Nm
