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Crankshaft
Removing the crankshaft is performed in the following order: - Remove the power unit from the vehicle (see. Sect. 3.2.4); - Disconnect the transmission from the engine;
| Fig. 3.52. The crankshaft and flywheel 1 - Crankshaft; 2 - rod bearing inserts; 3 - persistent half rings; 4 - main bearing shells; 5 - rod; 6 - bolt connecting rod cap; 7 - ring gear speed sensor crankshaft; 8 - bolt the ring gear; 9 - flywheel; 10 - a bolt of fastening of a flywheel; 11 - the adjusting pin clutch
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- Remove the bolts 10 (Fig. 3.52) flywheel mounting, fixing it from turning and remove the flywheel from the crankshaft 9 1;
| Fig. 3.53. Accessory drive: 1 - the crankshaft pulley; 2 - the water pump pulley; 3 - a tension roller; 4 - the mechanism of tension accessory drive belt; 5 - a pulley of the generator; 6 - air conditioning compressor pulley; 7 - pulley power steering; 8 - accessory drive belt
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- Unscrew the pulley bolt 1 (fig. 3.53) and remove the crankshaft pulley; - Remove the bolts of the water pump pulley and remove the pulley 2; - Remove the timing chain; - Remove the cylinder head (see. Sect. 3.2.5); - Remove the oil pan; - Remove the oil pump; - Remove the piston from the connecting rod assembly (see. Sect. 3.2.7); - Measure the crankshaft end play with a feeler gauge (see. Sect. 3.1.15), or a dial indicator. Crankshaft end play is controlled persistent half ring 3 (see. Fig. 3.52), which are mounted in the housing main bearing number 5;
| Fig. 3.54. The front and back cover of the crankshaft, oil pan: 1 - plug the oil passage; 2 - cylinder block; 3 - timing cover; 4 - the bolt of the rear cover of the crankshaft; 5 - rear cover of the crankshaft; 6 - crankshaft rear oil seal; 7 - a lining of the oil pan; 8 - The oil pallet; 9 - the oil drain plug; 10 - a bolt of fastening of the oil pallet; 11 - The front cover of the crankshaft; 12 - the bolt of the front cover of the crankshaft; 13 - crankshaft front oil seal
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- Remove the bolts 12 (Fig. 3.54) that secure the front cover of the crankshaft and remove the cover 11 together with the front oil seal 13; - Unscrew 4 screws fixing the rear cover of the crankshaft and remove the cover 5 with the rear oil seal 6; - Mark the crankshaft bearing caps for their subsequent proper installation; - Remove the bolts main bearing caps and remove the cover without removing them from the ear; - Remove the crankshaft; - Remove the upper main bearing shells (shells beds crankshaft) and mark them for follow proper installation. Upper inserts have a groove for supplying lubrication to the crankshaft. Fault detection of the crankshaft is performed in the sequence described in Sect. 3.1.16. Control parameters are given in Sect. 3.2.1. Installation of the crankshaft is performed in the following order: - Set the cylinder block 2 (see. Fig. 3.54) sump up; - Clean the working surfaces of the upper main bearing shells and lubricate them with fresh engine oil; - Establish persistent half rings of the top 3 (see. Fig. 3.52) radical bearing number 5; - Lubricate all crankshaft journals 1 fresh engine oil; - Set the crankshaft in the cylinder block; - Set the 4 liners in the main bearings; - Establish persistent half rings of 3 main bearing cap number 5; - Install the crankshaft bearing caps and tighten the cap bolts to 30 N ?� m, then turn them through 180 ?�; - Rotate the crankshaft by hand. It should rotate easily and smoothly; - Check the axial play of the crankshaft (see. Sect. 3.1.15); - Set of pistons with rods in the assembly; - Set the front and rear covers of the crankshaft with new seals; - Establish a flywheel; - Install the oil pump; - Apply sealant to the surface of the contact block 2 (see. Fig. 3.54) cylinders and the oil pan 8; - Set gasket 7 sump; - Install the oil pan 8 and tighten the bolts securing the oil pan 10 to 20 Nm crosswise, from the middle of the pan; - Complete the remaining operations in the reverse order of removal.
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