G.11Part. N. 8000 H1344 (10-2009)
ENGINE OVERHAULING
Cylinder
The cylinder liner bore should be completely smooth, without grooving or scoring.
To obtain the taper and the ovality of the cylinder liner bore take measurements
at three different heights and in two positions at 90° to each other.
Max taper (wear limit): 0.0019 in.
Max ovality (wear limit): 0.0019 in.
If the wear limits are greater than those prescribed, then replace the cylinder
with the piston; reboring the cylinder liner is not possible since the cylinder liner
has been given a special hardening treatment.
Piston
Thoroughly clean the piston crown and piston ring grooves of any carbon deposits.
Carry out a visual check and a measurement check of the piston, there should
be no signs of scoring, excessive wear, cracks or other damage.