Suzuki SY413 Service Manual page 2621

6-1-22 ENGINE GENERAL INFORMATION AND DIAGNOSIS (G13/G16 ENGINE WITH WU TWC)
Condition
D Improper oil viscosity
Low oil pressure
D Malfunctioning oil pressure switch
D Clogged oil strainer
D Functional deterioration of oil pump
D Worn oil pump relief valve
D Excessive clearance in various sliding parts
Engine noise Valve noise
D Improper valve lash
Note: Before
D Worn valve stem and guide
checking mechanical
D Weak or broken valve spring
noise, make sure
D Warped or bent valve
that:
D Specified spark
Piston, ring and cylinder noise
plug in used.
D Worn piston, ring and cylinder bore
D Specified fuel is
used.
Connecting rod noise
D Worn rod bearing
D Worn crank pin
D Loose connecting rod nuts
D Low oil pressure
Crankshaft noise
D Low oil pressure
D Worn bearing
D Worn crankshaft journal
D Loose bearing cap bolts
D Excessive crankshaft thrust play
Possible Cause Referring Item
Engine oil and oil filter change in
Section 0B
Oil pressure switch inspection in
Section 8
Oil pan and oil pump strainer cleaning
in Section 6A1
Oil pump in Section 6A1
Oil pump in Section 6A1
Valve lash in Section 6A1
Valves inspection in Section 6A1
Valve springs inspection in Section 6A1
Valves inspection in Section 6A1
Pistons and cylinders inspection in
Section 6A1
Crank pin and connecting rod bearing
inspection in Section 6A1
Crank pin and connecting rod bearing
inspection in Section 6A1
Connecting rod installation in Section
6A1
Previously outlined
Previously outlined
Crankshaft and bearing inspection in
Section 6A1
Crankshaft and bearing inspection in
Section 6A1
Crankshaft inspection in Section 6A1
Crankshaft thrust play inspection in
Section 6A1