Yanmar L48V [10/24] Yanmar

Содержание

• Engine 1
• Section 6 1
• Wm lft 2
• Before you begin servicing 3
• Caution 3
• Warnin 3
• _______ 3
• Caution 4
• Engine 4
• Introduction 4
• This section of the service manual describes the disassembly inspection and reassembly of the engine 4
• As undersize bearings are available and may have been installed some time during the life of the engine add the oversize or subtract the undersize from the standard dimension to measure these replacement parts refer to the parts catalog for the available sizes 5
• Cylinder head 5
• Cylinder head assembly 5
• Engine 5
• Intake exhaust valve seat 5
• Note all dimensions given are for standard original components oversize pistons and piston rings as well 5
• Specifications 5
• Valve clearance 5
• Yanmar 5
• Engine 6
• Intake exhaust valves guides and seals 6
• Push rod 6
• Engine 7
• Rocker arm and shaft 7
• Valve spring 7
• Yanmml 7
• Crankshaft 8
• Crankshaft balancer shaft piston and connecting rod 8
• Engine 8
• Balancer shaft 9
• Engine 9
• Engine 10
• Piston 10
• Yanmar 10
• Engine 11
• Piston ring 11
• Engine 12
• Connecting rod 13
• Engine 13
• Camshaft 14
• Camshaft and tappet 14
• Engine 14
• Tappet 14
• Cylinder block 15
• Cylinder block and crankcase cover 15
• Engine 15
• Crankcase cover 16
• Engine 16
• Yanmar 16
• Engine 17
• Oil pump trochoid pump 17
• Yanmml 17
• Engine 18
• Special torque specifications 18
• Engine 19
• Engine 20
• Special service tools 20
• Yanmar 20
• Engine 21
• Special service tools continued 21
• Engine 22
• Measuring instruments 22
• Yanmar 22
• Engine 23
• Measuring instruments continued 23
• Cylinder head 24
• Engine 24
• Removal of cylinder head 24

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ENGINE Piston Inspection Item Piston Outside Diameter Measure 90 to the wrist Standard Limit L48V 2 7545 in 69 965 mm 2 7441 in 69 700 mm L70V 3 0695 in 77 965 mm 3 0591 in 77 700 mm L100V 3 3841 in 85 955 mm 3 3740 in 85 700 mm pin Piston Diameter Measurement Location Upward from the bottom of the piston Clearance Between Piston and Sleeve L48V All Models Wrist Pin L70V L100V 6 10 See Piston Piston Rings and Wrist Pin on page 6 45 0 472 in 12 mm L48V L70V 0 0016 0 0024 in 0 040 0 060 mm L100V 0 0020 0 0028 in 0 050 0 070 mm Hole Inside Diameter 0 7474 0 7478 in 18 985 18 996 mm 0 7508 in 19 07 mm Pin Outside Diameter 0 7476 0 7480 in 18 991 19 0 mm 0 7448 in 18 920 mm Oil Clearance 0 0002 0 0006 in 0 005 0 015 mm Hole Inside Diameter Pin Outside Diameter 0 8261 0 8266 in 20 983 20 996 mm 0 8264 0 8267 in 20 991 21 000 mm Reference Page 0 8295 in 21 07 mm 0 8232 in 20 91 mm Oil Clearance 0 0002 0 00067 in 0 005 0 017 mm Hole Inside Diameter 0 9048 0 9053 in 22 983 22 996 mm 0 90830 in 23 07 mm Pin Outside Diameter 0 9051 0 9055 in 22 991 23 000 mm 0 9020 in 22 91 mm Oil Clearance 0 0002 0 00067 in 0 005 0 017 mm LV Service Manual See Piston Piston Rings and Wrist Pin on page 6 45 YANMAR