M11 Industrial Operation and Maintenance – 010-024   Air Leaks, Air Intake and Exhaust Systems

CAUTION  Engine intake air must be filtered to prevent dirt and debris from entering the engine. If intake air piping is damaged or loose, unfiltered air will enter the engine and cause premature wear.

Inspect the intake air piping every 1500 hours for cracked hoses, damage, or loose clamps.

Replace damaged pipes and tighten loose clamps as necessary to make sure the air intake system does not leak.

Check for corrosion of the intake system piping under the clamps and hoses. Corrosion can allow corrosive products and dirt to enter the intake system. Disassemble and clean as required.

• Turbocharger to exhaust manifold mounting gasket

Replace the gasket. Refer to Section A for turbocharger removal and installation.

• Turbine housing sealing surface exhaust leak

Tighten the turbine housing capscrews or v-band clamps.

• Compressor housing sealing surface air leak.

Tighten the compressor housing v-band clamp nut.