Daewoo DE12T Manual page 50

Condition
7) Oil Consumption
Excessive
(1) Oil level elevated
(2) Oil level lowered
(3) Oil leak
TECHNICAL INFORMATION
Causes
•
Clearance between cylinder liner
& piston
•
Wear of piston ring, ring groove
•
Piston ring's damage, stick, wear
•
Piston ring opening's disposition improper Correct position
•
Piston skirt part damaged or
abnormal wear
•
Oil ring's oil return hole clogged
•
Looseness of valve stem & guide
•
Wear of valve stem seal
•
Cylinder head gasket's leak
•
Looseness of connection parts
•
Various parts' packing poor
•
Oil seal poor
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Remedies
Replace
Replace piston, piston ring
Replace piston ring
Replace piston
Replace piston ring
Replace in set
Replace seal
Replace gasket
Replace gasket, repair
Replace packing
Replace oil seal