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Removal and installation of the cylinder head
Removal of a head with the engine mounted on the car, in the following order: - Disconnect the negative terminal of the battery; - Remove the top casing from the engine; - Remove the protective cover from the ignition distributor; - Disconnect the high voltage from the ignition distributor; - Remove the guide wires of high voltage;
| Fig. 3.43. The cylinder head of the engine AAA: 1 - the cylinder head cover; 2 - the nut of the cylinder head cover; 3 - Laying the cylinder head cover; 4 - a cover of the bearing of the camshaft; 5 - cylinder head; 6 - timing cover; 7 - the bolt of the timing cover; 8 - cylinder head gasket; 9 - the bolts of the cylinder head
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- Unscrew nut 2 (Fig. 3.43) fastenings of the cylinder head cover and remove the cover 1;
| Fig. 3.44. Intake manifold: 1 - the throttle body; 2 - Laying the throttle body; 3 - upper section of the intake manifold; 4 - installation of the top section of an inlet collector; 5 - Laying the lower section of the intake manifold; 6 - the bolt of the lower section of the intake manifold; 7 - lower section of the intake manifold; 8 - a bolt of fastening of the top section of an inlet collector
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- Unscrew the screws 8 (Fig. 3.44) fastenings of the top section of the intake manifold and remove the top section of the assembly from the throttle body and intake manifold;
| Fig. 3.45. Exhaust manifold: 1 - the nut housing the exhaust manifold; 2 - the cover of the exhaust manifold; 3 - pipe exhaust system to check for CO; 4 - section of the exhaust manifold; 5 - the nut section of the exhaust manifold; 6 - gasket exhaust manifold; 7 - stud fastening of a casing of the exhaust manifold
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- Unscrew the nut 1 (Fig. 3.45) fastenings of a casing of the exhaust manifold and remove the cover 2; - Loosen the flange nuts and lift the receiver 3 exhaust system to check for CO; - Unscrew the nut fastening sections 5 of the exhaust manifold and remove the section 4; - Remove the timing chain; - Remove the ignition distributor; - Remove the chain tensioner timing; - Unscrew the screws 7 (see. Fig. 3.43) fastenings timing cover and remove the cover 6;
| Fig. 3.46. The sequence of the bolts fastening the cylinder head of the engine AAA
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- Loosen the fastening bolts 9 Goloks cylinder in the reverse order of their tightening (Fig. 3.46), one turn in one pass and remove bolts and washers; - Remove the 5 cylinder head; - Remove the gasket 8 cylinder head; - Unscrew the screws 6 (see. Fig. 3.44) fastenings of the bottom section of the intake manifold and remove the bottom section 7. Attaching the cylinder head is executed in the following order: - Establish a new lining 8 (see. Fig. 3.43) on the cylinder head dowel pins inscription ?�OBEN / TOP?� up, check the alignment of holes pads with the corresponding holes of the cylinder; - Install carefully the cylinder head 5; - Insert the bolts 9 cylinder head with washers and tighten them by hand;
A WARNING When assembling it is recommended to install new bolts of the cylinder head. |
- Tighten the screws 9, the cylinder head in the order shown in Fig. 3.46, first 40 N ?� m, then to 60 N ?� m and tighten to 180 ?�; - Install the timing chain onto the camshaft sprocket, check the coincidence of timing marks; - Replace the cover 1 of the cylinder head with a new gasket and tighten the nut 3 2; - Set the upper section 3 (see. Fig. 3.44) intake manifold and tighten the bolts 8. In this case, you first need to tighten the bolts to the lower section of the intake manifold, then the rear support; - Complete the remaining operations in the reverse order of removal. After installation, adjust the accelerator cable. After starting the engine, check for leaks of the fuel system, cooling system and exhaust system.
A WARNING If you are replacing the hydraulic tappets, do not let the engine for 30 minutes after completion of the work. |
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