ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 200-002   Flow Diagram, Lubricating Oil System

General Information

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Lubricating Oil Cooler Flow

1. Gerotor lubricating oil pump
2. Lubricating oil cooler
3. Bypass oil to lubricating oil pan
4. Full flow lubricating oil filter
5. Filter bypass valve
6. From lubricating oil filter to main oil rifle
7. Oil thermostat

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Lubrication for Power Components

1. From lubricating oil filter
2. Main lubricating oil rifle
3. To camshaft
4. To piston cooling nozzle
5. From main lubricating oil rifle
6. To connecting rod bearing.

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Lubrication for Power Components (All ISL engines and ISC engines with CM850 Electronic Control Module)

1. From lubricating oil filter
2. Main lubricating oil rifle
3. To camshaft
4. To piston cooling nozzle
5. From main lubricating oil rifle
6. To connecting rod bearing.

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Lubrication for Power Components (ISC engines without CM850 Electronic Control Module)

1. From lubricating oil cooler
2. Main lubricating oil rifle
3. To camshaft
4. To piston cooling nozzle
5. From main lubricating oil rifle
6. To connecting rod bearing.

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Lubrication for Turbocharger (All Applications Except Marine)

1. Lubricating oil supply from filter
2. Turbocharger lubricating oil supply
3. Turbocharger lubricating oil drain

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Lubrication for Turbocharger

1. Lubricating oil supply from filter
2. Turbocharger lubricating oil supply
3. Turbocharger lubricating oil drain

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Lubrication for Turbocharger (Marine Applications)

1. Lubricating oil cooler
2. Lubricating oil filter
3. Turbocharger lubricating oil supply
4. Turbocharger
5. Turbocharger lubricating oil drain.

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Lubrication for the Overhead

1. From cam bushings
2. Transfer slot
3. Rocker lever support
4. Rocker lever shaft
5. Rocker lever bore
6. Rocker lever.