ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 010-045   Turbocharger Oil Drain Line

Inspect the turbocharger oil drain line for oil leaks or damage.

Repair as necessary.

CAUTION  Use caution when draining oil or replacing filters that oil is not spilled or drained into the bilge area. The oil and oil filters must be discarded in accordance with local environmental regulations.

Remove the capscrews from the oil drain tube.

Loosen the hose clamps on the connecting hoses, if equipped.

Pull the drain line out of the drain line boss.

Clean the gasket sealing surfaces.

Clean the o-ring seating bore and make sure it is free of dirt and debris.

Inspect the line for cracks, wear, and damage.

Inspect the o-ring for fretting and cracking. Replace if necessary.

Check the rubber section of the drain line for deterioration.

Inspect the connector hoses and clamps for cracks or wear. Replace if necessary.

Apply a thin film of clean engine oil to the drain line o-rings.

Push the oil drain line into the drain line boss. Make sure both o-rings are completely seated in the bore.

Install a new gasket to the oil drain line.

Install the turbocharger oil drain line mounting capscrews.

Install the hose and hose clamps, if equipped. Tighten the hose clamps.

Tighten the mounting capscrews.

Operate the engine and check for leaks.