Suzuki WagonR+ RB310 Service Manual page 595

6-2-24 ENGINE GENERAL INFORMATION AND DIAGNOSIS (M13 ENGINE)
Condition
Low oil pressure
Engine noise
Note: Before
checking mechani-
cal noise, make sure
that:
Specified spark
plug is used.
Specified fuel is
used.
Possible Cause
Improper oil viscosity
Malfunctioning oil pressure switch
Clogged oil strainer
Functional deterioration of oil pump
Worn oil pump relief valve
Excessive clearance in various sliding parts
Improper valve lash
Worn valve stem and guide
Weak or broken valve spring
Warped or bent valve
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
Reference Item
"Engine Oil and Oil Filter Replacement"
in Section 0B.
"Oil Pressure Switch Inspection" in Sec-
tion 8C.
"Oil Pan and Oil Pump Strainer" in Sec-
tion 6A2.
"Oil Pan and Oil Pump Strainer" in Sec-
tion 6A2.
"Oil Pan and Oil Pump Strainer" in Sec-
tion 6A2.
"Valves and Cylinder Head Inspection"
in Section 6A2.
"Valves and Cylinder Head Inspection"
in Section 6A2.
"Valves and Cylinder Head Inspection"
in Section 6A2.
"Valves and Cylinder Head Inspection"
in Section 6A2.
"Pistons, Piston rings, Connecting
Rods and Cylinders Inspection" in Sec-
tion 6A2.
"Pistons, Piston rings, Connecting
Rods and Cylinders Inspection" in Sec-
tion 6A2.
"Pistons, Piston rings, Connecting
Rods and Cylinders Inspection" in Sec-
tion 6A2.
"Pistons, Piston rings, Connecting
Rods and Cylinders Inspection" in Sec-
tion 6A2.
"Low Oil Pressure" in this table.
"Low Oil Pressure" in this table.
"Main bearings, Crankshaft and Cylin-
der Block Inspection" in Section 6A2.
"Main bearings, Crankshaft and Cylin-
der Block Inspection" in Section 6A2.
"Main bearings, Crankshaft and Cylin-
der Block Inspection" in Section 6A2.
"Main bearings, Crankshaft and Cylin-
der Block Inspection" in Section 6A2.