Yanmar L48V [9/24] Engine

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 Balancer Shaft Inspection Item Cylinder Block L48V Standard Limit Balancer Shaft Diameter 0 5899 0 5903 in 14 983 14 994 mm Cylinder Block Bore Diameter 1 3756 1 3766 in 34 941 34 966 mm Ball Bearing Inside Diameter 0 5902 0 5906 in 14 992 15 000 mm Ball Bearing Outside Diameter 1 3775 1 3780 in 34 989 35 000 mm Radial Clearance of Ball Bearing 0 00043 0 00098 in 0 011 0 025 mm 0 0016 in 0 040 mm Crankcase Cover Reference Page See Balancer Shaft on page 6 51 Same as Cylinder Block Cylinder Block L70V Balancer Shaft Diameter 0 6686 0 6691 in 16 983 16 994 mm Cylinder Block Bore Diameter 1 5725 1 5735 in 39 941 39 966 mm Ball Bearing Inside Diameter 0 6690 0 6693 in 16 992 17 000 mm Ball Bearing Outside Diameter 1 5744 1 5748 in 39 989 40 000 mm Radial Clearance of Ball Bearing 0 00043 0 00098 in 0 011 0 025 mm 0 0016 in 0 040 mm Crankcase Cover See Balancer Shaft on page 6 51 Same as Cylinder Block Cylinder Block L100V Balancer Shaft Diameter 0 7867 0 7872 in 19 983 19 994 mm Cylinder Block Bore Diameter 2 0449 2 0459 in 51 941 51 966 mm Ball Bearing Inside Diameter 0 7870 0 7874 in 19 990 20 000 mm Ball Bearing Outside Diameter 2 0467 2 0472 in 51 987 52 000 mm Radial Clearance of Ball Bearing 0 00051 0 00110 in 0 013 0 028 mm 0 0016 in 0 040 mm Crankcase Cover See Balancer Shaft on page 6 51 Same as Cylinder Block LV Service Manual 6 9