Daewoo G424 Gasoline, Service Manual

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G424 Service Manual Adjustment and Troubleshooting 189
Incorrect valve clearance –Cleaned or replace auto-lash adjuster.
Valve not in close contact with valve seat –Reface seat surface.
Excessive clearance between valve stem –Replace valve and valve guide.
and valve guide
Incorrect valve clearance –Cleaned or replace auto-lash adjuster.
Valve binding –Disassemble, correct or replace.
Deteriorated valve spring –Replace spring.
Incorrect valve clearance –Cleaned or replace auto-lash adjuster.
Pressure leaks from valve seal –Reface.
Valve stem seizure –Repair or replace.
Deteriorated or broken valve spring –Replace spring.
Valve damaged by heat –Reface or replace valve.
Intake manifold gasket not tight enough –Retighten set bolts or replace gasket.
Cylinder head gasket blow-by –Replace gasket.
Valve damaged by heat or not properly –Adjust or replace.
serviced
Insufficient compression pressure –Disassemble and repair engine.
Cylinder head gasket blow-by –Replace gasket.
Pressure leaks from cylinder head gasket –Retighten cylinder head bolts and
replace gasket.
Piston ring binding or worn –Replace ring.
Piston ring or ring worn –Disassemble and repair engine.
Oil leaks
Loose oil drain plug –Retighten plug.
Loose oil pan set bolts –Retighten set bolts.
Damaged oil pan gasket –Replace gasket.
Loose timing gear cover or damaged gasket –Retighten set bolts or replace gasket.
Defective crankshaft front oil seal –Replace oil seal.
Defective crankshaft rear oil seal –Replace oil seal.
Damaged cylinder head gasket –Replace gasket.
Loose oil filter set bolt. –Retighten set bolts or replace oil filter
gasket.
Poor idling
Abnormal
combustion
Insufficient output
Excessive fuel
consumption
Excessive fuel
consumption
Poor startability
Insufficient output
Excessive oil
consumption
Poor acceleration
Valves and
related
components
Engine
Base Engine