Daewoo D1146 - Page 33

D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
29
Printed in Jan. 2001 PS-MMA0415-E1A
Condition Causes Remedies
1) Starting difficult
(1) Compression pressure lack z Valve's poor shut, stem
distortion
Repair or replace
z Valve spring damage Replace valve spring
z Cylinder head gasket's leak Replace gasket
z Wear of piston, piston ring
or liner
Adjust
2) Idle operation abnormal
z Injection timing incorrect Adjust
z Air mixing at injection pump Remove air
3) Engine output insufficient
(1) Continuous output
insufficient
z Valve clearance incorrect Adjust
z Valve tightness poor Repair
z Cylinder head gasket's leak Replace gasket
z Wear, stick, damage of
piston ring
Replace piston ring
z Injection timing incorrect Adjust
z Fuel injection amount
insufficient
Adjust injection pump
z Nozzle injection pressure
improper or stuck
Adjust or replace
z Supply pump's function
lowered
Repair or replace
z Fuel pipe system clogged Repair
z Air suction amount
insufficient
Clean or replace air
cleaner
z Turbocharger poor Repair or replace
(2) Output insufficient
when in acceleration
z Compression pressure
insufficient
Disassemble engine
z Injection timing incorrect Adjust
z Fuel injection amount
insufficient
Adjust injection pump
z Injection pump timer's
function insufficient
Repair or replace
z Nozzle infection pressure,
infection angle improper
Repair, replace
z Supply pump's function
lowered
Repair or replace
z Air intake amount
insufficient
Clean or
replace air cleaner
4) Overheating
z Engine oil insufficient or
poor
Replenish or replace
z Cooling water insufficient Replenish or replace
z Fan belt loosened, worn,
damaged
Adjust or replace
z Cooling water pump's
function lowered
Repair or replace
z Water temp. regulator's
operation poor
Replace
z Valve clearance incorrect Adjust
z Exhaust system's resistance
increased
Clean or replace