ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 011-032   Heat Shield

Remove the heat shield insulation wrapping from the turbine housing.

Remove the wastegate actuator heat shield mounting capscrews.

Remove the insulation and heat shield.

CAUTION  Be sure to tie the exhaust piping up above the water line to prevent water from feeding back into the vessel while the exhaust piping is removed. Failure to do so can result in the vessel sinking.

Remove the exhaust outlet connection. Refer to Procedure 011-017.

Tap the heat shield mounting bracket and remove the bracket from the exhaust flange.

Clean the gasket sealing surfaces.

Inspect the mounting area and the sheet metal for cracks.

Replace the heat shield if damage or cracks are found.

Install two guide pins in the turbine outlet to hold the gasket and heat shield mount.

Install a new gasket.

Place the heat shield mount on the guide pins.

Install a new exhaust outlet gasket.

Install the exhaust outlet connection and the lower mounting capscrews.

Remove the guide pins.

Refer to Procedure 011-017.

Install the wastegate actuator heat shield mounting capscrews.

Install the insulating wrap.

Operate the engine and check for leaks.