Contents Section: Lubrication System All sections

Engine Lubrication System (H4SO): Specifications Subaru Legacy BL/BP рестайлинг

Lubrication System 2 illustrations

SPECIFICATION

Lubrication methodForced lubrication
Oil pumpPump typeTrochoid type
Number of teethInner rotor9
Outer rotor10
Outer rotor diameter x thickness78 x 10 mm (3.07 x 0.39 in)
Tip clearance between inner and outer rotorsStandard0.04 - 0.14 mm (0.0016 - 0.0055 in)
Side clearance between inner rotor and pump caseStandard0.02 - 0.07 mm (0.0008 - 0.0028 in)
Case clearance between outer rotor and pump caseStandard0.10 - 0.175 mm (0.0039 - 0.0069 in)
Performance (Oil temperature 80°C (176°F))600 rpmDischarge pressure98 kPa (1.0 kgf/cm 2 , 14 psi)
Discharge rate4.6 l (4.9 US qt, 4.0 Imp qt)/min.
5,000 rpmDischarge pressure294 kPa (3.0 kgf/cm 2 , 43 psi)
Discharge rate47.0 l (49.7 US qt, 41.4 Imp qt)/min.
Relief valve working pressure588 kPa (6.0 kgf/cm 2 , 85 psi)
Oil filterFilter typeFull-flow filter type
Filtration areaOuter diameter: 68 mm (2.68 in)800 cm 2 (124 sq in)
Outer diameter: 65 mm (2.56 in)470 cm 2 (73 sq in)
By-pass valve opening pressure160 kPa (1.63 kgf/cm 2 , 23.2 psi)
Outer diameter x widthOuter diameter: 68 mm (2.68 in)68 x 65 mm (2.68 x 2.56 in)
Outer diameter: 65 mm (2.56 in)65 x 74.4 mm (2.56 x 2.93 in)
Installation screw specificationsM 20 x 1.5
Oil pressure switchTypeImmersed contact point type
Operating voltage - number of watts12 V - 3.4 W or less
Warning light operating pressure14.7 kPa (0.15 kgf/cm 2 , 2.1 psi)
Proof pressure981 kPa (10 kgf/cm 2 , 142 psi) or more
Engine oilCapacity (at overhaul)5.0 l (5.4 US qt, 4.5 Imp qt)
When replacing engine oil and oil filter4.2 l (4.4 US qt, 3.7 Imp qt)
When replacing engine oil only4.0 l (4.2 US qt, 3.5 Imp qt)

SPECIFICATION CHART

Recommended oil

Those with an API standard SM "Energy Conserving" logo.

ILSAC standard GF-4 "starburst mark" displayed on container top.

Scheme 14

Scheme 14
CAUTIONIt is acceptable to fill an engine with oil of another brand when replacing the oil, but make sure to use an oil with an API standard and SAE viscosity number specified by Subaru.

Note. If the vehicle is used in regions with high temperatures or in other severe environments, use oil with the viscosities shown below. API standard: SM or SL

SAE Viscosity No.: 30, 40, 10W-50, 20W-40, 20W-50

Scheme 15

Scheme 15: COMPONENT