Daewoo D1146 - Page 34

D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
30
Printed in Jan. 2001 PS-MMA0415-E1A
Condition Causes Remedies
5) Engine noisy
For noises arise compositely
such as rotating parts, lapping
parts etc., there is necessity to
search the cause of noises
accurately.
(1) Crankshaft z As the wear of bearing or
crankshaft progress, the oil
clearances increase.
Replace bearing &
grind crankshaft
z Lopsided wear of crankshaft Grind or replace
z Oil supply insufficient due to
oil passage clogging
Clean oil passage
z Stuck bearing Replace bearing &
Grind
(2) Con.-rod and
Con.-rod bearing
z Lopsided wear of con rod
bearing
Replace bearing
z Lopsided wear of crank pin Grind crankshaft
z Connecting rod distortion Repair or replace
z Stuck bearing Replace &
grind crankshaft
z Oil supply insufficiency as
clogging at oil passage
progresses
Clean oil passage
(3) Piston, piston pin &
Piston ring
z Piston clearance increase
as the wear of piston and
piston ring progresses
Replace piston &
piston ring
z Wear of piston or piston pin Replace
z Piston stuck Replace piston
z Piston insertion poor Replace piston
z Piston ring damaged Replace piston
(4) Others z Wear of crankshaft, thrust
bearing
Replace thrust bearing
z Camshaft end play
increased
Replace thrust plate
z Idle gear end play increased Replace thrust washer
z Timing gear backlash
excessive
Repair or replace
z Valve clearance excessive Adjust valve clearance
z Abnormal wear of tappet,
cam
Replace tappet, cam
z Supercharger inner part
damaged
Repair or replace
6) Fuel Consumption
Excessive
z Injection timing incorrect Adjust
z Fuel injection amount
excessive
Adjust injection pump