Daewoo MUSSO Service Manual page 408

1B3-104 OM600 ENGINE MECHANICAL
Replacement Procedure
1. Pull out the valve tappet (1).
2. Remove the plug (5) and blow compressed air into the oil
gallery (3). At this time, check that the outlet bores(arrow)
at the seat of the valve tappet are clear.
3. Replace the seal (4) and tighten the plug (5).
4. Insert the new valve tappet.
Notice
Coat the valve tappet with oil.
Magnetic Bar 102 589 03 40 00