Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSSUBARU1998LEGACY BRIGHTON WAGON AWD F4-2.2L SOHCREPAIR AND DIAGNOSISSPECIFICATIONSMECHANICAL SPECIFICATIONSCOOLING SYSTEMWATER PUMPSERVICE SPECIFICATIONS
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHC
Service Specifications
1998 Subaru Legacy Brighton Wagon AWD F4-2.2L SOHCSECTION Service Specifications
Discharge Performance I:
Discharge 20 liters (5.3 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 760 rpm - 0.3 mAq (1.0 ftAq)
Engine Coolant Temperature 85°C (185°F)
Discharge Performance II:
Discharge 100 liters (26.4 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 3000 rpm - 5.0 mAq (16.4 ftAq)
Engine Coolant Temperature 85°C (185°F)
Discharge Performance III:
Discharge 200 liters (52.8 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 6000 rpm - 23.0 mAq (75.5 ftAq)
Engine Coolant Temperature 85°C (185°F)
Impeller Diameter 76 mm (2.99 inch)
Number Of Impeller Vanes 8
Pump Pulley Diameter 60 mm (2.36 inch)
Engine Coolant Pump:
Clearance Between Impeller And Case:
Standard 0.5 - 0.7 mm (0.020 - 0.028 inch)
Limit 1.0 mm (0.039 inch)
Thrust Runout Of Impeller End 0.5 mm (0.020 inch)
Discharge 20 liters (5.3 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 760 rpm - 0.3 mAq (1.0 ftAq)
Engine Coolant Temperature 85°C (185°F)
Discharge Performance II:
Discharge 100 liters (26.4 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 3000 rpm - 5.0 mAq (16.4 ftAq)
Engine Coolant Temperature 85°C (185°F)
Discharge Performance III:
Discharge 200 liters (52.8 US Gallons) Minimum
Pump Speed Total Engine Coolant Head 6000 rpm - 23.0 mAq (75.5 ftAq)
Engine Coolant Temperature 85°C (185°F)
Impeller Diameter 76 mm (2.99 inch)
Number Of Impeller Vanes 8
Pump Pulley Diameter 60 mm (2.36 inch)
Engine Coolant Pump:
Clearance Between Impeller And Case:
Standard 0.5 - 0.7 mm (0.020 - 0.028 inch)
Limit 1.0 mm (0.039 inch)
Thrust Runout Of Impeller End 0.5 mm (0.020 inch)
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.