FAULT FINDER

Engine lacks power

Dirty Air Cleaner

Clean or replace element according to manufacturer’s recommendations.

Restricted air duct from compressor to intake manifold

Remove restriction or replace damaged parts as required

Restricted intake manifold

Refer to engine manufacturer’s manual and remove restriction

Air leak in feed from compressor to intake manifold

Replace seals, gaskets or tighten fasteners as required

Air leak between intake manifold and engine

Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required

Foreign object in exhaust manifold (from engine)

Refer to engine manufacturer’s manual and remove obstruction

Restricted exhaust system

Remove restriction or replace damaged parts as required

Exhaust manifold cracked, gaskets blown or missing

Refer to engine manufacturer’s manual and replace gaskets or damaged parts as required

Gas leak at turbine inlet/exhaust manifold joint

Replace gasket or tighten fasteners as required

Black Exhaust Smoke

Dirty air cleaner

Clean or replace element according to manufacturer’s recommendations

Restricted compressor intake duct

Remove restriction or replace damaged parts as required

Restricted air duct from compressor to intake manifold

Remove restriction or replace damaged parts as required

Air leak in feed from compressor to intake manifold

Replace seals, gaskets or tighten fasteners as required

Air leak between intake manifold and engine

Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required

Foreign object in exhaust manifold (from engine)

Refer to engine manufacturer’s manual and remove obstruction

High Oil Consumption

Dirty Air Cleaner

Clean or replace element according to manufacturer’s recommendations

Restricted compressor intake duct

Remove restriction or replace damaged parts as required

Air leak in feed from compressor to intake manifold

Replace seals, gaskets or tighten fasteners as required

Air leak between intake manifold and engine

Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required

Restricted turbocharger oil drain line

Remove restriction or replace damaged parts as required

Restricted engine crankcase breather

Refer to engine manufacturer’s manual, clear restriction

Turbocharger bearing housing sludged or coked

Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners

Refer to engine manufacturer’s manual and repair as required

Burnt valves and/or pistons

Refer to engine manufacturer’s manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

Clean in accordance with details given in manufacturer’s manual

Turbocharger damaged

Find and correct cause of failure, repair or replace turbocharger as necessary

Turbocharger Noisy

Restricted compressor intake duct

Remove restriction or replace damaged parts as required

Restricted air duct from compressor to intake manifold

Remove restriction or replace damaged parts as required

Restricted intake manifold

Refer to engine manufacturer’s manual and remove restriction

Air leak in feed from air cleaner to compressor

Replace seals, gaskets or tighten fasteners as required

Air leak in feed from compressor to intake manifold

Replace seals, gaskets or tighten fasteners as required

Air leak between intake manifold and engine

Refer to engine manufacturer’s manual and replace gaskets or tighten fasteners as required

Foreign object in exhaust manifold (from engine)

Refer to engine manufacturer’s manual and remove obstruction

Exhaust manifold cracked, gaskets blown or missing

Refer to engine manufacturer’s manual and replace gaskets or damaged parts as required

Gas leak at turbine inlet/exhaust manifold joint

Replace gasket or tighten fasteners as required

Gas leak in ducting after turbine outlet

Refer to engine manufacturer’s manual and repair leak

Excessive dirt build up on compressor wheel and/or diffuser vanes

Clean in accordance with details given in manufacturer’s manual

Turbocharger damaged

Find and correct cause of failure, repair or replace turbocharger as necessary

Oil leak from Turbine Seal

Dirty Air Cleaner

Clean or replace element according to manufacturer’s recommendations

Restricted compressor intake duct

Remove restriction or replace damaged parts as required

Foreign object in exhaust manifold (from engine)

Refer to engine manufacturer’s manual and remove obstruction

Restricted exhaust system

Remove restriction or replace damaged parts as required

Exhaust manifold cracked, gaskets blown or missing

Refer to engine manufacturer’s manual and replace gaskets or damaged parts as required

Gas leak at turbine inlet/exhaust manifold joint

Replace gasket or tighten fasteners as required

Restricted turbocharger oil drain line

Remove restriction or replace damaged parts as required

Restricted engine crankcase breather

Refer to engine manufacturer’s manual, clear restriction

Turbocharger bearing housing sludged or coked

Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners

Refer to engine manufacturer’s manual and repair as required

Burnt valves and/or pistons

Refer to engine manufacturer’s manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

Clean in accordance with details given in manufacturer’s manual

Turbocharger damaged

Find and correct cause of failure, repair or replace turbocharger as necessary

Cyclic sound from Turbocharger

Restricted compressor intake duct

Remove restriction or replace damaged parts as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

Clean in accordance with details given in manufacturer’s manual

Oil leak from Compressor Seal

Restricted turbocharger oil drain line

Remove restriction or replace damaged parts as required

Restricted engine crankcase breather

Refer to engine manufacturer’s manual, clear restriction

Turbocharger bearing housing sludged or coked

Change engine oil and oil filter, overhaul or replace turbocharger as required

Worn engine piston rings or liners

Refer to engine manufacturer’s manual and repair as required

Burnt valves and/or pistons

Refer to engine manufacturer’s manual and repair as required

Excessive dirt build up on compressor wheel and/or diffuser vanes

Clean in accordance with details given in manufacturer’s manual

Turbocharger damaged

Find and correct cause of failure, repair or replace turbocharger as necessary

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GARRETT by Honeywell

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IHI turbo

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Mitsubishi turbo

HOLSET BLACK

imperial