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Cylinder block
| Fig. 2.6. Details of the cylinder and the crank mechanism of the engine SR20DE: 1 - a cover of a chain valve timing; 2 - an arm of fastening of the generator; 3 - the water pump; 4 - cylinder block; 5 - the holder of the rear cuff of the crankshaft; 6 - persistent half rings; 7 - flywheel; 8 - a back cover; 9 - the crankshaft; 10 - main bearing shells; 11 - a cover of the radical bearing; 12 - frame crankshaft bearing; 13, 14 - valve stem screen; 15 - aluminum housing; 16 - maslouspokoitelny shield; 17 - stamped steel housing; 18 - drain plug; 19 - a cover; 20 - a rod and a rod cover; 21 - big end bearings; 22 - a lock ring; 23 - the piston pin; 24 - sleeve top head of a rod; 25 - the piston; 26 - the piston rings; 27 - oil receiver with a filter of the oil pump; 28 - a sealing ring
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| Fig. 2.7. Measuring the height of the cylinder
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| Fig. 2.5. Details of the cylinder block and crank mechanism motors and GA14DE GA16DE: I - with manual transmission; II - with an automatic transmission; 1 - the block of cylinders; 2 - the holder of the rear cuff of the crankshaft; 3 - coolant drain plug of the cylinder; 4 - an arm; 5 - inserts the crankshaft bearing; 6 - persistent half rings of a cranked shaft; 7 - crankshaft; 8 - the crankshaft bearing caps of the crankshaft; 9 - Drive hub of the oil pump; 10 - an asterisk of the crankshaft; 11 - Woodruff; 12 - a cover of the bottom head of a rod; 13 - connecting rod bearings; 14 - a rod; 15 - a lock ring; 16 - the piston pin; 17 - the piston; 18 - oil ring; 19 - lower compression ring; 20 - upper compression ring; 21 - rear lip of the crankshaft; 22 - Back Cover; 23 - a flywheel; 24 - the bottom cover; 25 - Back Cover; 26 - a conducted disk
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The cylinder block is cast iron, cast integrally with the cylinder (Fig. 2.5 and 2.6). Cylinders diameter divided into three size groups (Table 2.1.). The nominal height of the engine block GA is A = 213,95-214,05 mm (Fig. 2.7).
Table 2.1 Dimensional groups of cylinders Bore mm | Engine model | GA14DE | GA16DE | SR20DE | 1 th size group | 73,60-73,61 | 76,00-76,01 | 86,00-86,01 | 2nd size group | 73,61-73,62 | 76,01-76,02 | 86,01-86,02 | 3rd size group | 73,62-73,63 | 76,02-76,03 | 86,02-86,03 |
The engine used SR20DE cast frame main bearing, providing additional rigidity of the cylinder, and a more complex design of the sump, which consists of aluminum and steel crankcase and oil guard.
| Fig. 2.8. Marking size groups diameters of cylinders on the engine block and GF14DE GA16DE: 1 - Room size groups cylinder bore; 2 - room size groups (size categories) bearing shells of the crankshaft; 3 - the number of size group bore number 1; 4 - the number of size group (size category) bearing pads number 1
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Marking size groups-diameter cylinder is applied to the cylinder block (Fig. 2.8 and 2.9)
| Fig. 2.9. Marking group on the surface of the bore of the cylinder engine SR20DE
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