Installation of a head of the block of cylinders. Nissan Almera (from 1995 to 1999 of release)
Nissan Almera service from 1995 to 2000 in N15 body
1. General information
2. The general requirements to car repairs
3. Operation and car maintenance
4. Petrol engines
4.1. Removal and installation of the power unit
4.2. Dismantling and engine assembly
4.3. Block of cylinders
4.4. Shatunno-porshnevaya group
4.5. Cranked shaft and flywheel
4.6. Gazoraspredeleniye mechanism
4.7. Head of the block of cylinders of GA14DE and GA16DE engines
4.7.1. Removal of a head of the block of cylinders
4.7.2. Installation of a head of the block of cylinders
4.7.3. Dismantling, check of a technical condition, repair and assembly of a head of the block цилиндровa
4.7.4. Check and adjustment of gaps in the mechanism of a drive of valves
4.8. Head of the block of cylinders of the SR20DE engine
4.9. Cooling system
4.10. Greasing system
4.11. System of production of the fulfilled gases
4.12. Power supply system
4.13. Complex control system of the engine (KSUD)
5. Diesel engines
6. Transmission
7. Running gear
8. Steering
9. Brake system
10. Electric equipment
11. Body
12. Appendices
13. Electric equipment schemes
 







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4.7.2. Installation of a head of the block of cylinders

Establish on the places the plug of a drive of the oil pump and an asterisk of a drive of a cranked shaft together with their shponka. Shponochnye grooves should be thus in situation «12 hours», and the label on an asterisk should be in situation «from the engine».

Fig. 2.23. Installation of a chain of a drive of an intermediate asterisk on an asterisk of a cranked shaft


Establish into place an uspokoitel of a chain of a drive of an intermediate asterisk. Establish a chain of a drive of an intermediate asterisk so that the link of silvery color settled down against a label on the asterisk of a cranked shaft being in situation «7 hours» (fig. 2.23).

Fig. 2.24. A zone of drawing of a layer of hermetic on a forward cover of a drive of camshafts and an installation site of sealing rings


Put a hermetic layer on a privalochny surface of a forward cover of a drive of camshafts. Be convinced available on the places of two sealing rings (fig. 2.24). Establish into place a forward cover of a drive of camshafts, watching that the plug of a drive of the oil pump entered into a cover.

Fig. 2.22. Arrangement of bolts of fastening of a forward cover of a drive of camshafts


Establish a forward cover, having tightened its bolts: short the moment 0,6 — 0,9 kgfs · m, long the moment 1,6 — 2,2 kgfs · m (see fig. 2.22).
Put into place the right arm of an engine mount (the moment of an inhaling of bolts 4,4 — 5,6 kgfs · м), then clean a prop from under the engine.
Establish into place a maslopriyemnik with a new sealing ring. Put a hermetic layer on a privalochny surface of an oil case. Establish it on a place and tighten cross-wise fastening bolts. On cars with an automatic transmission establish the bottom protective cover of the hydrotransformer. Establish antivibrating struts on the power unit. Establish into place the bottom cross-piece and tighten its bolts the moment 7,9 — 10,0 kgfs · m. Establish a reception pipe of exhaust silencers with new laying. To press by means of an opravka of the corresponding diameter new a cuff of a cranked shaft, previously having greased it with engine oil. Establish a pulley on a cranked shaft. Insert and tighten the moment 13,5 — 15,5 kgfs · m a bolt of fastening of a pulley, having greased it with engine oil.

Fig. 2.25. Installation of chains of a drive on an intermediate asterisk


Establish an intermediate asterisk so that the label on a big asterisk was in situation «1 hour» (fig. 2.25) and settled down against a link of a chain of silvery color. The label on an intermediate asterisk should be in this situation at distance of 40 links from a label on an asterisk of a cranked shaft. Establish a chain of a drive of camshafts on a small intermediate asterisk and combine a link of a chain of golden color with a label which is in situation «4 hours». Establish an axis of an intermediate asterisk. Be convinced available adjusting plugs on the block of cylinders. Lay new laying of a head on the block of cylinders. Establish into place a head of the block of cylinders with the inlet pipeline and a final collector. Insert bolts of fastening of a head of the block of cylinders with washers. Previously grease with engine oil a carving part of bolts and an internal surface of heads of bolts. Facets on washers should be directed to heads of bolts.

Fig. 2.21. Order of an inhaling of bolts of fastening of a head of the block of cylinders


In the sequence shown on fig. 2.21, tighten bolts the set moment.

Fig. 2.15. Marking of camshafts: 1 — a camshaft of inlet valves; 2 — a camshaft of final valves





Fig. 2.26. Installation of camshafts on labels: 1 — a shaft of inlet valves;
2 — a shaft of final valves


Fig. 2.16. Order of installation and marking of covers of cases of bearings of camshafts: 1 — cover number; 2 — the arrow directed towards a drive of camshafts



Fig. 2.27. Order of an inhaling of bolts of fastening of covers of cases of bearings of camshafts


Tighten a bolt of fastening of an intermediate asterisk. Establish camshafts, paying attention to their marking (fig. 2.15).
The pin of a camshaft of inlet valves should be established on 10 — 11 ° below situation «9 hours», and a pin of a shaft of final valves establish at «12 o'clock» (fig. 2.26). Grease with engine oil of a neck and cams of camshafts and establish covers according to fig. 2.16, then tighten bolts of fastening of covers in the sequence shown on fig. 2.27.

Fig. 2.28. Blocking of a natyazhitel of a chain of a drive of camshafts


Put a hermetic layer on a stykovochny surface of an additional support of a camshaft of final valves from the ignition distributor. In case of dismantling of the klapanny mechanism it is necessary to check gaps in the mechanism of a drive of valves. Insert asterisks of camshafts into a chain of a drive of camshafts (the label on an asterisk should be turned «from the engine») and combine labels on each asterisk with silvery links of a chain. Put on asterisks socks of camshafts and establish their pins in grooves. Insert and tighten previously the bolts of fastening of asterisks greased with engine oil. Establish into place a natyazhitel of a chain of a drive of camshafts. For simplification of installation of a natyazhitel block it a plunzher by means of a metal core of suitable diameter (fig. 2.28). After installation take out a core for an unblocking of a natyazhitel. Establish a natyazhitel of a chain of a drive of an intermediate asterisk semicircular dredging down. Turn on two turns a cranked shaft of the engine and return it to a point of initial installation (the piston of the first cylinder in VMT of a step of compression).

Fig. 2.29. Check of installation of chains of a drive of camshafts


On fig. 2.29 check accuracy of installation of camshafts and chains of their drive by quantity of links of chains between the labels specified in drawing.

Fig. 2.30. Installation of the distributor of ignition


Put sing hermetic on a privalochny surface and establish a forward cover of a head of the block of cylinders. Put a hermetic layer on a privalochny surface of the case of the thermostat and establish the thermostat. Establish a pulley of a drive of the pump of cooling liquid. Establish into place the ignition distributor (fig. 2.30) and once again check, that the piston in the 1st cylinder was in VMT of a step of compression (ledges of cams are directed up), and the labels made at removal, coincided (a rotor there are in situation «5 hours»). Establish into place a cover of the distributor of ignition and connect to it wires. Check and if necessary adjust gaps in the mechanism of a drive of valves. Establish a cover of a head of the block of cylinders with new laying. Screw spark plugs and connect to them wires. Establish a bracket of an arm of a head of the block of cylinders. Establish an arm of the inlet pipeline. Lay plaits of electricity cables. Join disconnected electrosockets. Execute the remained operations as it should be, the return to removal. Fill with cooling liquid cooling system. Check level of oil and other liquids. Start up the engine and be convinced of absence of leaks and normal operation of units.

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