Suzuki GRAND VITARA XL-7 Owner's Manual page 196

Condition
Engine noise
(Note : Before check-
ing the mechanical
noise, make sure the
followings : Ignition
timing is properly
adjusted, Specified
spark plug is used,
Specified fuel is used.)
Possible Cause
Faulty hydraulic valve lash adjuster
Worn valve stem and guide
Weak or broken valve spring
Warped or bent valve
Loose camshaft housing bolts
Worn piston, ring and cylinder bore
Worn crankpin bearing
Worn crankpin
Loose connecting rod nuts
Low oil pressure
Worn crankshaft journal bearing
Worn crankshaft journal
Loose lower crankcase (bearing cap) bolts
Excessive crankshaft thrust play
ENGINE GENERAL INFORMATION AND DIAGNOSIS (H27 ENGINE) 6-1-35
Correction
Hydraulic valve lash adjuster in
Section 6A2.
Valves inspection in Section 6A2.
Valve springs inspection in Section
6A2.
Valves inspection in Section 6A2.
Camshafts in Section 6A2.
Pistons and cylinders inspection in
Section 6A2.
Crankpin and connecting rod bear-
ing inspection in Section 6A2.
Crankpin and connecting rod bear-
ing inspection in Section 6A2.
Connecting rod installation in Sec-
tion 6A2.
Refer to "LOW OIL PRESSURE" of
this table.
Crankshaft and bearing inspection
in Section 6A2.
Crankshaft and bearing inspection
in Section 6A2.
Crankshaft installation in Section
6A2.
Crankshaft inspection in Section
6A2.