Detroit Diesel Troubleshooting Diagrams

Archive for the ‘Charge Air Cooler’ tag

Series 60 Charge Air Cooler

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To determine if a charge air cooler is causing excessive exhaust smoke, perform the following: ‪

1. Attach a WK93 air-to-air charge air cooler test kit; refer to OEM guidelines.
2. Disconnect the air inlet hose from the outlet side of the turbocharger compressor housing;
3. Attach the air-to-air cooler test kit adaptor plug to fit into the hose at the compressor connector; refer to OEM guidelines.
4. Attach an air pressure hose to the air chuck at the regulator and gradually pressurize the air inlet system to a pressure of 25 · lb · in. 2 (177 kPa).
5. Apply a water and soap solution to each hose connection, across the face of the charge air cooler.
6. Apply a water and soap solution to the air intake manifold and cylinder head mating surface area.
7. Visually inspect all joints for air leaks and all charge air cooler welded surfaces for stress cracks

If air leaks are present around the joints, replace the charge air cooler;
If any leaks are present around the air intake manifold, repair the air intake manifold;
If no leaks are present, check for faulty exhaust system;

 

Written by sam

February 2nd, 2012 at 4:19 am

Series 60 Charge Air Cooler

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On vehicle and industrial engines, a CAC (charge air cooler) is normally mounted ahead of the cooling system radiator. On keel-cooled marine engines the charge air cooler is incorporated into the keel cooler tank. On heat exchanger-cooled engines, the charge air cooler is part of the intake manifold. The compressed air leaving the turbocharger is directed through the CAC before it goes to the air inlet side of the intake manifold.

The CAC is used to reduce the temperature of the compressed air leaving the turbocharger before it reaches the intake manifold. This permits a more dense charge of air to be delivered to the engine.

Series 60 Charge Air Cooler Series 60 Charge Air Cooler

Written by sam

September 26th, 2011 at 3:33 am

Posted in Air Intake System

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