A Series Diesel Engine Base Engine Components 163
Piston and Rod Assembly
There are a number of power relate problems
including excessive oil consumption, smoke, blow-by
and poor performance that can be caused by
inadequate sealing between the piston rings and the
cylinder walls.
A blow-by measurement can help detect the problem.
Verification of the damaged or worn component
requires visual/dimensional inspection of rings, pistons
and cylinder bore.
The cause of piston ring wear can range from wear
over a long period of service to a dust-out in a short
period of time because of poor maintenance of the air
intake system.
Refer to Section 5 for troubleshooting the Air System.
During repair it is essential that the cylinder wall be
deglazed so that new rings will seat against the
cylinder wall.
The marks on cylinder block and cylinder liner must be
matched.
The different marks are matched, excessive blow by
gas and excessive oil consumption occur.
To Next Page
Loading...
