18 ASPIRATION SYSTEM
Turbocharger faults
The chart below is given to assist in the correct diagnosis of turbocharger faults.
If the inside of the induction manifold is wet, check that there is not a fuel leak from the fuelled starting
aid, if there is one fitted, operation 23C-01.
Problems Possible causes code numbers
Not enough power 1, 4, 5, 6, 7, 8, 9, 10, 11, 18, 20, 21, 22, 25, 26, 27,
28, 34, 35, 36
Black smoke 1, 4, 5, 6, 7, 8, 9, 10, 11, 18, 20, 21, 22, 25, 26, 27,
28, 34, 35, 36
Blue smoke 1, 2, 4, 6, 8, 9, 17, 19, 20, 21, 22, 30, 31, 32, 34
High lubricating oil consumption 2, 8, 15, 17, 19, 20, 28, 29, 31, 32, 34
Too much lubricating oil at turbine end 2, 7, 8, 17, 19, 20, 22, 28, 30, 31, 32
Too much lubricating oil at compressor end 1, 2, 4, 5, 6, 8, 19, 20, 21, 28, 31, 32
Not enough lubrication 8, 12, 14, 15, 16, 23, 24, 29, 32, 33, 37, 38
Lubricating oil in the exhaust manifold 2, 7, 17, 18, 19, 20, 22, 28, 31, 32
Inside of the induction manifold wet 1, 2, 3, 4, 5, 6, 8, 10, 11, 17, 18, 19, 20, 21, 28, 32,
34, 39, 40
Damaged compressor impeller 3, 4, 6, 8, 12, 15, 16, 20, 21, 23, 24, 29, 32, 33, 37, 38
Damaged turbine rotor 7, 8, 12, 13, 14, 15, 16, 18, 20, 22, 23, 24, 25, 27, 29,
32, 33, 37, 38
Rotating assembly does not turn freely 3, 6, 7, 8, 12, 13, 14, 15, 16, 18, 20, 21, 22, 23, 24, 29,
32, 33, 37, 38
Worn bearings, bearing bores, journals 6, 7, 8, 12, 13, 14, 15, 16, 23, 24, 29, 33, 37, 38
Noise from turbocharger 1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 20,
21, 22, 23, 24, 29, 32, 33, 34, 37, 38
Sludge or carbon deposit in bearing housing 2, 11, 13, 14, 15, 17, 18, 24, 29, 33, 37, 38
18A.10 Perkins Phaser/1000 Series, April 1995
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