Daewoo KORANDO Service Manual page 421

1B3-120 OM600 ENGINE MECHANICAL
5. Heat the cylinder head (1) in a wear tank to approx. 80°C.
6. Cool down the new valve guide (2) with liquid nitrogen.
Notice
Do not touch the cooled valve guide by hand.
7. Drive in new valve guide with drift (8) until the wire ring makes
contact.
Notice
The valve guide must be driven in from the cylinder head
cover.
8. Check the valve guide bore with GO / NO GO gauge (9).
The GO side (marked '0') should just still drop. If the GO
side cannot be inserted, the bore of valve guide should be
reamed.
Notice
Perform the check only on cooled down cylinder head.
GO / NO GO Gauge (for Intake) 102 589 00 23 00
GO / NO GO Gauge (for Exhaust) 117 589 03 23 00
Super Cooling box 346 589 00 63 00
Drift (for Intake) 601 589 05 15 00
Drift (for Exhaust) 601 589 06 15 00