Lovol Phaser Series User Manual

The fault diagnosis of a turbocharged diesel engine
Do not dismount the turbocharger once you suspect it malfunctions. You are expected to diagnose the
fault (refer to the “fault diagnosis table”), find the reason and get rid of the fault.
Based on the experiences, to simply replace the turbocharger without finding the reason, will cause the
same problems to occur again.
The fault diagnosis of a turbocharged diesel engine
Problem
list of possible causes and solution
no enough power black exhaust smoke high lubricating oil consumption blue or white exhaust smoke high noises of the turbocharger periodical noises of the turbocharger fuel leakage beside the compressor fuel leakage beside the turbine
possible causes solution
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dirty fuel filter element
Change the fuel element according to the
manufacturer's recommendations
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Unsmooth air flow in
the compressor inlet.
Remove the foreign substance or replace
damaged parts if necessary.
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Unsmooth air flow in
the compressor outlet.
Remove the foreign substance or replace
damaged parts if necessary.
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Unsmooth air flow in
the compressor inlet.
Remove foreign substance according to the
Users’ Manual.
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Air leakage in the pipe
between the air filter
and compressor.
Replace the sealing parts or fasten the fasteners
if necessary.
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Air leakage in the pipe
between the engine and
compressor.
Replace the sealing parts or fasten the fasteners
if necessary.
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Air leakage in the
interface of the cylinder
head and intake
manifold.
Replace the gasket or fasten the fasteners if
necessary.
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Unsmooth air flow in
the engine exhaust
manifold.
Remove foreign substance according to the
Users’ Manual.
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Unsmooth air flow in
the muffler or exhaust
manifold downstream.
Remove foreign substance or replace degraded
parts according to the Users’ Manual.
11.04

Lovol Phaser Series Specifications

General

Brand	Lovol
Model	Phaser Series
Category	Engine
Language	English