ENGINE GENERAL INFORMATION AND DIAGNOSIS (G16/J20 ENGINES) 6-41
Engine noise
See NOTE below.
Valve noise
• Faulty hydraulic valve lash adjuster
“Camshafts and Valve Lash Adjuster” in
Section 6A4.
• Worn valve stem and guide
“Valves and Cylinder Head” in Section 6A1
or 6A4.
• Weak or broken valve spring
“Valve and Cylinder Head” in Section 6A1 or
6A4.
• Warped or bent valve
“Valves and Cylinder Head” in Section 6A1
or 6A4.
• Loose camshaft housing bolts
“Rocker Arms, Rocker Arm Shaft and Cam-
shaft” in Section 6A1 or “Camshafts and
Valve Lash Adjuster” in Section 6A4.
Piston, ring and cylinder noise
• Worn piston, ring and cylinder bore
“Pistons, Piston Rings, Connecting Rods
and Cylinders” in Section 6A1 or 6A4.
Connecting rod noise
• Worn crankpin bearing
“Pistons, Piston Rings, Connecting Rods
and Cylinders” in Section 6A1 or 6A4.
• Worn crankpin
“Pistons, Piston Rings, Connecting Rods
and Cylinders” in Section 6A1 or 6A4.
• Loose connecting rod nuts
“Pistons, Piston Rings, Connecting Rods
and Cylinders” in Section 6A1 or 6A4.
• Low oil pressure
Previously outlined.
Crankshaft noise
• Low oil pressure
Previously outlined.
• Worn crankshaft journal bearing
“Main Bearings, Crankshaft and Cylinder
Block” in Section 6A1 or 6A4.
• Worn crankshaft journal
“Main Bearings, Crankshaft and Cylinder
Block” in Section 6A1 or 6A4.
• Loose lower crankcase (bearing cap)
bolts
“Main Bearings, Crankshaft and Cylinder
Block” in Section 6A1 or 6A4.
• Excessive crankshaft thrust play
“Main Bearings, Crankshaft and Cylinder
Block” in Section 6A1 or 6A4.
Condition
Possible Cause
Correction
NOTE:
Before checking the mechanical noise, make sure that:
• Ignition timing is properly adjusted.
• Specified spark plug is used.
• Specified fuel is used.
Содержание Engine 2002 GRAND VITARA SQ625
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Страница 248: ...ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE 6 1 107 Fig for Step 4...
Страница 274: ...ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE 6 1 133 Fig and Table for Step 3...
Страница 291: ...6 1 150 ENGINE GENERAL INFORMATION AND DIAGNOSIS H25 ENGINE...
Страница 360: ...ENGINE MECHANICAL G16 ENGINE 6A1 69 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
Страница 489: ...6A2 114 ENGINE MECHANICAL H25 ENGINE...
Страница 572: ...ENGINE MECHANICAL J20 ENGINE 6A4 83 Main Bearings Crankshaft and Cylinder Block COMPONENTS...
Страница 591: ...6A4 102 ENGINE MECHANICAL J20 ENGINE...
Страница 598: ...ENGINE COOLING 6B 7...
Страница 623: ...6B 32 ENGINE COOLING...
Страница 635: ...6E1 4 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM FOR G16 ENGINE...
Страница 637: ...6E1 6 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM FOR J20 ENGINE...
Страница 643: ...6E1 12 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ELECTRONIC CONTROL SYSTEM COMPONENT LOCATION FOR G16 ENGINE...
Страница 645: ...6E1 14 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES ELECTRONIC CONTROL SYSTEM COMPONENT LOCATION FOR J20 ENGINE...
Страница 693: ...6E1 62 ENGINE AND EMISSION CONTROL SYSTEM G16 J20 ENGINES...
Страница 697: ...6E2 4 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE ENGINE AND EMISSION CONTROL SYSTEM DIAGRAM...
Страница 743: ...6E2 50 ENGINE AND EMISSION CONTROL SYSTEM H25 ENGINE...
Страница 814: ...CHARGING SYSTEM 6H 21 Disassembly 70 A and 80 A types...
Страница 827: ...6H 34 CHARGING SYSTEM...
Страница 833: ...6K 6 EXHAUST SYSTEM...
Страница 834: ...Prepared by 1st Ed Dec 2002 Printed in Japan 824...