LUBRICATION(H4DO 1.5) > General Description
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Lubrication method |
Forced lubrication | |||||
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Oil pump |
Pump type |
Trochoid type | ||||
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Number of teeth |
Inner rotor |
9 | ||||
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Outer rotor |
10 | |||||
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Outer rotor diameter × thickness |
mm (in) |
76 × 10 (2.99 × 0.39) | ||||
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Tip clearance between inner and outer rotors |
mm (in) |
Standard |
0.04 — 0.14 (0.0016 — 0.0055) | |||
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Case clearance between outer rotor and pump case |
mm (in) |
Standard |
0.10 — 0.175 (0.0039 — 0.0069) | |||
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Side clearance between inner rotor and pump case |
mm (in) |
Standard |
0.02 — 0.07 (0.0008 — 0.0028) | |||
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Relief valve spring |
Free length |
mm (in) |
73.7 (2.902) | |||
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Installed length |
mm (in) |
54.7 (2.154) | ||||
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Load when installed |
N (kgf, lbf) |
93.1 (9.49, 20.93) | ||||
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Performance (Oil temperature 80°C (176°F)) |
600 rpm |
Discharge pressure |
kPa (kgf/cm2, psi) |
98 (1.0, 14) | ||
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Discharge rate |
L (US qt, Imp qt)/min. |
4.6 (4.9, 4.0) or more | ||||
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5,000 rpm |
Discharge pressure |
kPa (kgf/cm2, psi) |
294 (3.0, 43) | |||
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Discharge rate |
L (US qt, Imp qt)/min. |
47.0 (49.7, 41.4) or more | ||||
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Relief valve working pressure |
kPa (kgf/cm2, psi) |
588 (6.0, 85) | ||||
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Oil filter |
Filter type |
Full-flow filter type | ||||
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Filtration area |
cm2 (sq in) |
800 (124) | ||||
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By-pass valve opening pressure |
kPa (kgf/cm2, psi) |
160 (1.63, 23.2) | ||||
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Outer diameter × width |
mm (in) |
68 × 65 (2.68 × 2.56) | ||||
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Installation screw specifications |
M 20 × 1.5 | |||||
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Oil pressure switch |
Type |
Immersed contact point type | ||||
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Operating voltage — power consumption |
12 V — 3.4 W or less | |||||
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Warning light operating pressure |
kPa (kgf/cm2, psi) |
14.7 (0.15, 2.1) | ||||
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Proof pressure |
kPa (kgf/cm2, psi) |
981 (10, 142) or more | ||||
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Engine oil |
Total capacity (at overhaul) |
L (US qt, Imp qt) |
5.0 (5.3, 4.4) | |||
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When replacing engine oil and oil filter |
Model with oil cooler |
L (US qt, Imp qt) |
4.3 (4.5, 3.8) | |||
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Models without oil cooler |
L (US qt, Imp qt) |
4.2 (4.4, 3.7) | ||||
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When replacing engine oil only |
L (US qt, Imp qt) |
4.0 (4.2, 3.5) | ||||
Recommended oil:
Oil corresponding to either of the following standards.
• Those with the API standard SM or SN “Energy Conserving” logo
• Those with the ILSAC standard GF-4 or GF-5 “starburst mark” displayed on top of the container.
• Those with ACEA standard A1, A3, or A5 displayed on top of the container.
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(1) |
SAE viscosity No. and applicable temperature |
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(2) |
Recommended |
CAUTION:
It 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:
• The proper viscosity oil helps the engine maintain its ideal temperature, and cranking speed increased by reducing viscosity friction in hot condition.
• If the vehicle is used in regions of high temperatures or in other severe environments, use oil with the viscosities shown below.
API standard: SM, SN or SL
SAE viscosity No.: 30, 40, 20W-40, 20W-50