Ray Hall Turbocharging - Turbocharger Troubleshooting

For Diesel Turbocharged Engines

A Engine lacks power

B Black exhaust smoke

C Excessive engine oil consumption

D Blue exhaust smoke

E Turbocharger noisy

F Cyclic sound from turbocharger

G Oil leak from compressor seal

H Oil leak from turbine seal

A B C D E F G H
CAUSE

REMEDY

. . . Clogged air filter element Replace element according to engine manufacturers recommendations

. . Obstructed air intake duct to turbo compressor Remove obstruction or replace damaged parts as required

. . . . . Obstructed air outlet duct from compressor to intake manifold Remove obstruction or replace damaged parts as required

. . . . . Obstructed intake manifold Refer to engine manufactures manual & remove obstruction

. . . . . . . Air leak in duct from air cleaner to compressor Correct leak by replacing seals or tightening fasteners as required

. . . Air leak in duct from compressor to inlet manifold Correct leak by replacing seals or tightening fasteners as required

. . . Air leak at intake manifold to engine joint Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required

. . Obstruction in exhaust manifold Refer to engine manufactures manual & remove obstruction

. . . . . Obstruction in muffler or exhaust stack Remove obstruction or replace faulty components as required

. . . . Gas leak in turbine inlet to exhaust manifold joint Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required

. . . . Gas leak in turbine inlet to exhaust manifold joint Replace gasket or tighten fasteners as required

. . . . . . . Gas leak in ducting after the turbine outlet Refer to engine manufactures manual & repair leak

. . . . Obstructed turbocharger oil drain Remove obstruction or replace line as required

. . . . Obstructed engine crankcase vent Refer to engine manufacturers manual, clear obstruction

. . . . Turbocharger center housing sludged or coked Change engine oil & oil filter, overhaul turbocharger as required

. . . . . . Fuel injection pump or fuel injectors incorrectly adjusted Refer to engine manufacturers manual - replace or adjust faulty component(s) as required

. . . . . . Engine camshaft timing incorrect Refer to engine manufacturers manual & replace worn parts

. . Worn engine piston rings or liners (blow by) Refer to engine manufacturers manual & repair engine as required

. . Internal engine problem (valves, pistons) Refer to engine manufacturers manual & repair engine as required

Dirt caked on compressor wheel and/or diffuser vanes Clean using a Non-Caustic cleaner & Soft Brush. Find & correct source of unfiltered air & change engine oil &oil filter

. Damaged turbocharger Analyze failed turbocharger, find & correct cause of failure, overhaul or replace turbocharger as required

A	Engine lacks power
B	Black exhaust smoke
C	Excessive engine oil consumption
D	Blue exhaust smoke
E	Turbocharger noisy
F	Cyclic sound from turbocharger
G	Oil leak from compressor seal
H	Oil leak from turbine seal


A	B	C	D	E	F	G	H	CAUSE	REMEDY
				.	.		.	Clogged air filter element	Replace element according to engine manufacturers recommendations
.							.	Obstructed air intake duct to turbo compressor	Remove obstruction or replace damaged parts as required
		.	.		.	.	.	Obstructed air outlet duct from compressor to intake manifold	Remove obstruction or replace damaged parts as required
		.	.		.	.	.	Obstructed intake manifold	Refer to engine manufactures manual & remove obstruction
.	.	.	.		.	.	.	Air leak in duct from air cleaner to compressor	Correct leak by replacing seals or tightening fasteners as required
					.	.	.	Air leak in duct from compressor to inlet manifold	Correct leak by replacing seals or tightening fasteners as required
					.	.	.	Air leak at intake manifold to engine joint	Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required
					.		.	Obstruction in exhaust manifold	Refer to engine manufactures manual & remove obstruction
		.	.	.	.		.	Obstruction in muffler or exhaust stack	Remove obstruction or replace faulty components as required
		.	.		.		.	Gas leak in turbine inlet to exhaust manifold joint	Refer to engine manufacturers manual & replace gaskets or tighten fasteners as required
		.	.		.		.	Gas leak in turbine inlet to exhaust manifold joint	Replace gasket or tighten fasteners as required
.	.	.	.		.	.	.	Gas leak in ducting after the turbine outlet	Refer to engine manufactures manual & repair leak
.	.			.	.			Obstructed turbocharger oil drain	Remove obstruction or replace line as required
.	.			.	.			Obstructed engine crankcase vent	Refer to engine manufacturers manual, clear obstruction
.	.			.	.			Turbocharger center housing sludged or coked	Change engine oil & oil filter, overhaul turbocharger as required
		.	.	.	.	.	.	Fuel injection pump or fuel injectors incorrectly adjusted	Refer to engine manufacturers manual - replace or adjust faulty component(s) as required
		.	.	.	.	.	.	Engine camshaft timing incorrect	Refer to engine manufacturers manual & replace worn parts
				.	.			Worn engine piston rings or liners (blow by)	Refer to engine manufacturers manual & repair engine as required
				.	.			Internal engine problem (valves, pistons)	Refer to engine manufacturers manual & repair engine as required
								Dirt caked on compressor wheel and/or diffuser vanes	Clean using a Non-Caustic cleaner & Soft Brush. Find & correct source of unfiltered air & change engine oil &oil filter
					.			Damaged turbocharger	Analyze failed turbocharger, find & correct cause of failure, overhaul or replace turbocharger as required