
27
5.2 Trouble Shooting
Engine top-end problems usually affect engine
performance. These problems can be diagnosed
by a compression test, or by tracing engine noise
to the top end with a sounding rod or stethoscope.
Low compression
High compression
Excessive noise
•
Cylinder head gasket leaking or damaged
•
Warped or cracked cylinder head
•
Cylinder or piston rings worn or
damaged
•
Excessive carbon build-up on piston
head or in combustion chamber
•
Excessive wear of piston or cylinder
•
Excessive carbon build-up in cylinder
•
Excessive wear of piston rings
•
Improper installation of piston rings
•
Piston or cylinder wall scored or
scratched
•
Excessive carbon build-up on the piston
or in the combustion chamber
•
Engine cooling system fan damaged
•
Engine cooling air intake blocked
•
Cylinder fins dirty or clogged
•
Insufficient oil supply
•
Ignition timing out of sync
Excess smoke
Overheating
www.Get2itParts.com
www.Get2itParts.com
www.Get2itParts.com