D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
31
Printed in Jan. 2001 PS-MMA0415-E1A
Condition Causes Remedies
7) Oil Consumption
Excessive
(1) Oil level elevated z Clearance between cylinder
liner & piston
Replace
z Wear of piston ring, ring
groove
Replace piston,
piston ring
z Piston ring's damage, stick,
wear
Replace piston ring
z Piston ring opening's
disposition improper
Correct position
z Piston skirt part damaged or
abnormal wear
Replace piston
z Oil ring's oil return hole
clogged
Replace piston ring
z Oil ring's contact poor Replace piston ring
(2) Oil level lowered z Looseness of valve stem &
guide
Replace in set
z Wear of valve stem seal Replace seal
z Cylinder head gasket’s leak Replace gasket
(3) Oil leak z Looseness of connection
parts
Replace gasket, repair
z Various parts' packing poor Replace packing
z Oil seal poor Replace oil seal
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