Suzuki Wagon R Plus RB310, Service Manual

Page: 199 / 846

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