Daewoo KORANDO Service Manual page 335

1B3-34 OM600 ENGINE MECHANICAL
8. Remeasure size 'X' and compare it with the first
measurement and determine the thickness of spacer ring.
Size before machining
Ex
Size after machining
The spacer ring should be selected so that it is at least
0.1mm and not more than 0.3mm thicker than the
measured on the sealing surface. In this example, the
necessary thickness of spacer ring should be within 0.3 ~
0.5mm and the thickness of spacer ring to be installed is
0.3mm.
9. Remove the countersink tool and clean the chips.
Notice
If the sealing surface is not completely flat, remachine the
sealing surface.
10. emove rag from the prechamber bore and crank the engine
with starter motor to threw out any chips which may have
got into the combustion chamber.
11. Insert the proper spacer ring into the prechamber sealing
surface.
12. Punch a mark on the cylinder head above the prechamber
sealing surface which has been machined.
13. Install the prechambers.
Notice
If the cylinder head is removed, the projection 'C' is
measured in place of size 'X' and the appropriate size of
spacer ring selected.
Normal Projection (c)
25.7 mm
25.5 mm
7.6 - 8.1mm