Suzuki SX4 Service Manual page 96

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1A-46 Engine General Information and Diagnosis:
Condition
Engine noise – Valve
noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine noise – Piston,
ring and cylinder noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine noise –
Connecting rod noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Engine noise –
Crankshaft noise
NOTE
Before checking
mechanical noise, make
sure that:
• Specified spark plug is
used.
• Specified fuel is used.
Possible cause
Improper valve lash
Worn valve stem and guide
Weak or broken valve spring
Warped or bent valve
Worn piston, ring and cylinder bore
Worn piston, ring and cylinder bore
Worn rod bearing
Worn crank pin
Loose connecting rod nuts
Low oil pressure
Low oil pressure
Worn bearing
Worn crankshaft journal
Loose bearing cap bolts
Excessive crankshaft thrust play
Correction / Reference Item
"Camshaft, Tappet and Shim Inspection in
Section 1D"
"Valves and Valve Guides Inspection in
Section 1D"
"Valve Spring Inspection in Section 1D"
"Valves and Valve Guides Inspection in
Section 1D"
"Cylinders, Pistons and Piston Rings
Inspection in Section 1D"
"Cylinders, Pistons and Piston Rings
Inspection in Section 1D"
"Crank Pin and Connecting Rod Bearings
Inspection in Section 1D"
"Crank Pin and Connecting Rod Bearings
Inspection in Section 1D"
"Pistons, Piston Rings, Connecting Rods and
Cylinders Removal and Installation in Section
1D"
Condition "Low oil pressure"
Condition "Low oil pressure"
"Main Bearings Inspection in Section 1D"
"Crankshaft Inspection in Section 1D"
"Main Bearings, Crankshaft and Cylinder Block
Removal and Installation in Section 1D"
"Crankshaft Inspection in Section 1D"

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