OIL PUMP CONSTRUCTION [MZR 2.0 DISI i-stop]
id011136100600
• The oil pump is installed inside the engine front cover. The crankshaft drives the inner rotor through the oil pump chain and oil pump driven sprocket.
• The oil pump component consists of the oil pump body, oil pump driven sprocket, oil pump chain and oil pump chain tensioner.
• A trochoid gear has been adopted on the oil pump.
• The oil pump consists of the inner and outer rotors, relief valve, and oil pump body.
• The oil pump cannot be disassembled. If there is an oil pump malfunction, replace it as a single unit.
Oil pump specification
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Item
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Engine speed [rpm]
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Specification (kPa {kgf/cm2, psi})
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Oil discharge pressure (reference value)
[Oil temperature: 100°C {212°F}]
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1,500
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156—363 {1.60—3.70, 22.7—52.6}
|
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3,000
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297—551 {3.03—5.61, 43.1—79.9}
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• A bush chain has been adopted for the oil pump chain, improving durability during high-output or high-load operation.
• The engine oil in the engine front cover lubricates the oil pump chain. Wear resistance has been improved by furnace hardening the pins constructing the oil pump chain.
• The teeth of the sintered material in the oil pump driven sprocket have been induction hardened to improve durability.
Oil pump chain, oil pump driven sprocket specification
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Item
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Specification (mm {in})
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Oil pump chain
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Pitch size
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7 {0.3}
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Oil pump driven sprocket
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Outer diameter
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63.5 {2.50}
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Driven tooth width
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3.1 {0.12}
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