Daewoo GC25E-3 Service Manual

Insufficient coolant –Add coolant and check for leaky points.
Leaks from radiator –Repair or replace radiator.
Loosened or damaged radiator –Retighten clamp or replace hose.
hose connection
Leaks from water pump –Replace.
Coolant leaks from cylinder head gasket –Retighten cylinder head bolts or replace
gasket.
Cracks in cylinder head or block –Replace.
Defective carburetor –Repair or replace carburetor.z
Damaged cylinder head gasket, etc. –Replace gasket.
Clogged fuel pipe –Clean pipe.
Clogged fuel filter –Clean or replace.
Air in fuel system –Check connections and retighten.
Damaged fuel pipe –Replace pipe.
Fuel pump not functioning properly –Repair or replace.
Damaged diaphragm –Replace.
Defective valve –Replace.
G424 Service Manual Adjustment and Troubleshooting187
Troubleshooting Flow Chart
General
Loose connection in ignition system wiring –Check connections and retighten.
Defective spark plug –Replace spark plug.
Incorrect ignition timing –Adjust ignition timing.
Defective carburetor –Repair or replace carburetor.
Contaminated or clogged fuel filter element –Clean fuel filter element and pipe.
and pipe
Entry of air from carburetor or intake manifold –Retighten set bolts or replace heat
insulator and/or intake manifold gasket.
Defective valves and related components –Adjust or repair valves and related
components.
Carbon deposited in combustion chamber –Disassemble and clean.
Clogged cylinder head water tube –Clean or replace water tube.
Cylinder gasket blow-by –Replace gasket.
Incorrect ignition timing –Adjust ignition timing.
Defective spark plug –Replace spark plug.
Clogged air cleaner element –Clean or replace element.
Carburetor choke always in operation –Repair or replace carburetor.
Air governor malfunction –Repair or replace air governor.
Insufficient intake
air in carburetor
Overheating
Insufficient fuel
Ignition system out
of adjustment
Ignition system
Valves and related
components
Cylinder head
Carburetion related
components
Abnormal
combustion
Insufficient
output

Daewoo GC25E-3 Specifications

General

Brand	Daewoo
Model	GC25E-3
Category	Engine
Language	English