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Verfügbare Sprachen
Verfügbare Sprachen
D I E S E L E N G I N E T E S T R E S U LT
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At intact cylinders the pressure increases directly on start up to a peak value.
•
Check all cylinders by manufacturer's instruction, the difference between them may be up
to 10%.
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When a cylinder has no pressure and the spark plugs have traces of oil, the piston should
be checked for damage. At high combustion temperatures, for example by uncontrolled
combustion (coal oil on the spark plug) can cause damage to the piston (pitting) lead.
•
If the value is less on two adiacent cylinders than the value of the other cylinders, there is
a defective cylinder head gasket in the transition zone between the two cylinders. This is
also true if there is water and / or oil at the spark plugs.
•
If one cylinder has a lower pressure as indicated by the manufacturer, give a little engine
oil into the cylinder and run the compression test again. If the pressure rises sharply,
the piston rings are worn. If the pressure remains the same low level, the defect is a leaky
valve or a defective camshaft.
•
If the pressure indicated on all cylinders less than that stated by the manufacturer, the
motor has age-related wear and for diagnose the engine must be disassembled and
measured.
•
Install all the spark plugs and cables in the correct order.
NOTE: For all tests should always vehicle specific data are available.
2 6 1 1 9 L
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