3.10.1. Removal and installation on the car

The head of cylinders is removed from the engine on the car if for elimination of malfunction it is not necessary to remove the engine or if it is only required to remove a deposit from the surfaces of the combustion chamber and valves. It is necessary to remove a head of cylinders from the engine in the following order:
— merge cooling liquid from a radiator and the block of cylinders and remove the air filter;
— disconnect wires from the rechargeable battery, spark plugs and from the sensor of the index of temperature of cooling liquid; disconnect a cable of the drive of the air gate from the carburetor;
— a key 67.7812.9514 turn out spark plugs and the sensor of temperature of cooling liquid;
— disconnect drafts of the drive of a butterfly valve from the intermediate lever on a cover of a head of cylinders and uncover;

Fig. 3-19. Check of coincidence of an adjusting tag on a camshaft asterisk with a tag on the case of bearings: 1 — a tag on an asterisk; 2 — a tag on the case of bearings


Fig. 8-22. Distributor of ignition 0.3706: 1 — the ignition distributor roller; 2 — a current supply wire to the ignition distributor; 3 — a latch of fastening of a cover; 4 — the case of the vacuum regulator; 5 — a diaphragm; 6 — a cover of the vacuum regulator; 7 — draft of the vacuum regulator; 8 — a branch pipe for a vacuum hose from the carburetor; 9 — a lubricant match (фильц) a cam; 10 — the basic (conducted) ignition advancing regulator plate; 11 — an ignition distributor rotor; 12 — a side electrode with the plug for a wire to a spark plug; 13 — an ignition distributor cover; 14 — the central plug for a wire from the ignition coil; 15 — the central coal electrode with a spring; 16 — the central contact of a rotor; 17 — the resistor for suppression of a radio noise; 18 — external contact of a rotor; 19 — the leading plate of the centrifugal regulator; 20 — a small weight of the centrifugal regulator of an advancing of ignition; 21 — an axis a rychazhka; 22 — a breaker cam; 23 — a breaker rychazhok; 24 — a rack with contacts of the breaker; 25 — contacts of the breaker; 26 — a mobile plate of the breaker; 27 — the condenser; 28 — the ignition distributor case; 29 — the maslootrazhatelny coupling of the roller; 30 — a lock plate of the bearing; 31 — the bearing of a mobile plate of the breaker; 32 — the butterdish case; 33 — screws of fastening of a rack with contacts of the breaker; 34 — the screw of a klemmovy clip; and — a flute for difference of distributors of ignition 30.3706; — a groove for movement of a rack with контактамиРис. 8–22. Distributor of ignition 0.3706: 1 — the ignition distributor roller; 2 — a current supply wire to the ignition distributor; 3 — a latch of fastening of a cover; 4 — the case of the vacuum regulator; 5 — a diaphragm; 6 — a cover of the vacuum regulator; 7 — draft of the vacuum regulator; 8 — a branch pipe for a vacuum hose from the carburetor; 9 — a lubricant match (фильц) a cam; 10 — the basic (conducted) ignition advancing regulator plate; 11 — an ignition distributor rotor; 12 — a side electrode with the plug for a wire to a spark plug; 13 — an ignition distributor cover; 14 — the central plug for a wire from the ignition coil; 15 — the central coal electrode with a spring; 16 — the central contact of a rotor; 17 — the resistor for suppression of a radio noise; 18 — external contact of a rotor; 19 — the leading plate of the centrifugal regulator; 20 — a small weight of the centrifugal regulator of an advancing of ignition; 21 — an axis a rychazhka; 22 — a breaker cam; 23 — a breaker rychazhok; 24 — a rack with contacts of the breaker; 25 — contacts of the breaker; 26 — a mobile plate of the breaker; 27 — the condenser; 28 — the ignition distributor case; 29 — the maslootrazhatelny coupling of the roller; 30 — a lock plate of the bearing; 31 — the bearing of a mobile plate of the breaker; 32 — the butterdish case; 33 — screws of fastening of a rack with contacts of the breaker; 34 — the screw of a klemmovy clip; and — a flute for difference of distributors of ignition 30.3706; — a groove for movement of a rack with contacts

— turn a bent shaft before combination of a tag on a pulley with a long tag on a camshaft drive cover (see fig. 8-22), and tags on a camshaft asterisk — with a tag on the case of bearings of the camshaft (see fig. 3-19);
— disconnect a hose from a liquid supply tube to a heater, and from a final collector — an arm of fastening of a tube of removal of liquid from a heater;
— disconnect hoses from the carburetor, the inlet pipeline and from a final branch pipe of the cooling shirt of a head of cylinders;
— disconnect a protective guard of a starter and a reception pipe of mufflers from a final collector;

...... NOTE
It is better to leave a final collector and the inlet pipeline with the carburetor on a head. They can be removed later when dismantling a head of cylinders.

— release the cap-type nut of a natyazhitel of a chain, wring out an assembly shovel a rod of a natyazhitel and record it the cap-type nut;
— remove an asterisk of the camshaft and the case of bearings together with the camshaft;
— turn off bolts of fastening of a head of cylinders to the block and remove a head.
Again to establish and fix a head on the block of cylinders, perform the described operations in the return sequence, at the same time:
— do not forget to put laying of a head of cylinders and laying of a cover of a head;

Fig. 3-16. Order of tightening of bolts of a head of cylinders



Fig. 3-18. Order of tightening of nuts of the case of bearings of the camshaft

— tighten bolts of fastening of a head in the sequence specified fig. 3-16, and nuts of hairpins of the case of bearings of the camshaft — in the sequence specified fig. 3-18.
Tighten bolts of fastening of a head of cylinders in two steps:
— preliminary moment of 33,3-41,16 N · m (3,4–4,2 kgfs · l) bolts 1–10;
— final moment of 95,94-118,38 N · m (9,79–12,08 kgfs · l) bolts 1–10 and 30,67–39,1 N.'s moment of m (3,13–3,99 кгс.м) bolt 11.
At installation of a chain pay attention to coincidence of adjusting tags (see fig. 3-19 and fig. 8-22). Pull a chain as it is specified in the subsection "Camshaft and Its Drive".
At installation of a cover of a head of cylinders with laying, nuts of fastening of a cover tighten the moment no more than 7,85 N. of m (0,8 кгс.м) not to cause a rupture of laying on fixing openings and a cover buckling. At repair of the engine laying of a cover is recommended to be replaced new.
After installation of a head of cylinders check and adjust the ignition moment.