ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 200-004   Flow Diagram, Air Intake System

Table of Contents

General Information

General Information


Charge Air Cooled Engines

  1. Intake Air Inlet to Turbocharger
  2. Turbocharger Air to Charge Air Cooler
  3. Charge Air Cooler
  4. Intake Manifold (integral part of cylinder head)
  5. Intake Valve.

QSC8.3 and QSL9 Marine Aftercooled Engines

NOTE: The graphic above is the QSL9 engine configuration. The aftercooler on the QSC8.3 engine mounts to the engine differently, but the air flow from the air inlet to the combustion chamber is the same.

  1. Air inlet to air filter
  2. Air filter assembly
  3. Intake air restriction indicator
  4. Air inlet to turbocharger compressor
  5. Turbocharger compressor discharge
  6. Air discharge from turbocharger compressor to aftercooler inlet
  7. Aftercooler air inlet
  8. Aftercooler
  9. Air discharge from aftercooler to intake manifold
  10. Air manifold
  11. Intake valve.

Last Modified:  26-Feb-2009