Removing the crankshaft

To remove the crankshaft is necessary to dismantle the engine, which perform the following operations:

- Disconnect the transmission from the engine. When removing the gearbox do not damage the clutch;

- Remove the clutch (Sect. 7.1);

- Fix the flywheel using a screwdriver and loosen the bolts. In most cases fails unscrew bolts also via ring spanner without fixing the flywheel. Set this ring wrench at a right angle and strike his hand over the end of the key. For fixing the coupling can be drilled two holes in a narrow metal strip and fasten it with screws on the clutch surface of the flywheel. Provide strong support of the engine and unscrew the bolts. Fig. 75 shows the position of the metal strip when loosening bolts

;

- Before removing the flywheel should be applied punch marks on the pressure plate and flywheel to note the relative position of these parts. Unscrew the bolt from the engine crankshaft pulley, while the flywheel is still in the locked position;

- Remove the cylinder head with the intake and exhaust manifolds (Sect. 2.3.1). Removing the toothed belt, see. Div. 2.7.1;

- Paint mark on the outer side of the rotation direction of the toothed belt;

- Unscrew the pallet (Sect. 3.1);

- Remove the oil pump (Sect. 3.2.1);

- If necessary to remove only the crankshaft, the pistons and connecting rods may be left in the cylinder block. Otherwise dismantle pistons and connecting rods, as described in Sect. 2.4.1. If the connecting rods and pistons remain in the unit, it is necessary to mark the bearing caps rods, remove and place them together with loose leaves. Do not forget to replace the connecting rod bolts. This refers to the bolts with nuts and without nuts (engines 1.3, 1.4 and 1.6 liters);

- To establish a dial gauge with a tripod so that the probe tip was on the end pin of the crankshaft (Fig. 76). Indicator can be mounted on the cylinder block by means of the magnetic bearing. Move the screwdriver in the direction of the crankshaft, install the indicator reading at zero and move the crankshaft in the opposite direction. Dial gauge reading should be recorded for subsequent assembly. If the axial clearance is greater than 0.20 mm, it is necessary to take into account during assembly.

In the absence of a dial indicator can measure the clearance from the central bearing between the flange and the bearing surface of the crankshaft using the probe as shown in Fig. 77;

- Using Fig. 25, unscrew the fixing bolts on the front side of the engine and remove the cover with gasket;

- Using Fig. 78, turn away bolts of the rear cover and remove the gasket. The cover sleeve is not to be replaced, both on the front end of the shaft. You may have to replace the cover;

- Unscrew evenly crosswise bolts of covers of bearings of the crankshaft and take them out one by one. Check if visible number of covers. Cover number 1 is at a side of the pulley;

- Remove the bearing shells with the main journals of the crankshaft and place them together with the relevant bearing caps;

- Remove the cover of the central main bearing persistent half rings are used to adjust the axial clearance;

- Remove the crankshaft from the cylinder;

- Remove the remaining casing inserts and arrange them together with other liners and covers. Liners have grooves for lubricant, the assembly again should install them into the crankcase. Remove the bottom persistent half rings of the central bearing and arrange them according to the side of the unit, together with other shims.