Removal and 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
5. Diesel engines
5.1. General information
5.2. Block of cylinders and krivoshipnoshatunny mechanism
5.3. Gazoraspredeleniye mechanism
5.3.1. Constructive особенностиa
5.3.2. Removal and installation of a gear drive of the mechanism of a gazoraspredeleniye
5.3.3. Removal and installation of a head of the block of cylinders
5.3.4. Dismantling, check of a technical condition and repair of a head of the block of cylinders
5.3.5. Check of a hydraulic pusher
5.4. Cooling system
5.5. Greasing system
5.6. Power supply system
5.7. Control system of the CD20 engine
5.8. Control system of the CD20E engine
5.9. System of production of the fulfilled gases
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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5.3.3. Removal and installation of a head of the block of cylinders


Fig. 3.18. Order of an inhaling of bolts of fastening of a head of cylinders


Disconnect a wire from the "minus" plug of the storage battery. Put on support a forward part of the car. Merge liquid from cooling system. Remove the right wheel, its mudguard and the bottom board of protection of a case of the engine. Disconnect a branch pipe of system of cooling and an air line from an inlet collector. Under the car remove a reception pipe of the exhaust silencer and remove laying. Remove heatisolating screen of a final collector, a final collector and the inlet pipeline, remove their laying. Remove a belt of a drive of a camshaft, a belt of a drive of TNVD and remove топливопроводы a high pressure. Disconnect from a nozzle of the fourth cylinder drain топливопровод. Separate electrosockets of devices and the knots located in a zone of removal of a head of the block of cylinders, having noticed their arrangement. On the CD20E engine separate the socket of the sensor of lifting of a needle from a nozzle of the first cylinder. Block from rotation by means of the special adaptation a gear pulley of a camshaft from TNVD, then unscrew a bolt of its fastening and remove a gear pulley of a camshaft. Remove details of fastening of an internal cover of a belt of a drive of TNVD, a tension roller of a belt of a drive of TNVD and a cover of a head of the block of cylinders. Gradually weaken and unscrew bolts of fastening of a head of the block of cylinders in sequence, return specified fig. 3.18.
Check a detachment from a head of the block of cylinders of all wires, sockets and pipelines. By means of the lever adaptation separate a head from the block of cylinders and remove it, having carefully taken out the camshaft end from an internal cover of a drive of TNVD. Establish a head on a wooden surface and remove laying.
Before installation of a head of the block of cylinders on the block clear surfaces of interface of a head and the block, using special detergents for dissolution of the remains of old laying. Do not apply to this purpose sharp subjects with which it is possible to damage privalochny surfaces. Check a condition of privalochny surfaces. On them there should not be scratches or other outer defects. Establish a camshaft in the provision of an initial corner of an advancing of injection. Thus the label on gear to a pulley of a camshaft should be in situation «3 hours». Restore a carving in openings for bolts of fastening of a head in the block of cylinders by means of a tap of the corresponding diameter, clear of dirt and dry. Check existence of adjusting plugs. Be convinced that the cranked shaft is in the provision of an initial corner of an advancing of injection, and a shponka on cranked to a shaft — of situation «12 hours». Check by means of a ruler and a set щупов planeness of a privalochny surface of a head of the block of cylinders. Establish laying of the same thickness, as removed if the privalochny surface of a head was not exposed to grinding. Otherwise at replacement of the krivoshipno-shatunny mechanism or its details, and also at replacement of the block of cylinders it is necessary to measure a vystupaniye of pistons in relation to a privalochny surface of the block of cylinders by means of the indicator to define thickness of established laying (see tab. 3.9).

Fig. 3.19. Points of measurement of a vystupaniye of the piston concerning the plane of the block of cylinders


Define average value of a vystupaniye of the piston for each cylinder (the Fig. 3.19) and calculate average value for all four cylinders.

Fig. 3.20. Installation of laying of a head of the block of cylinders: 1 — adjusting plugs of a head of the block of cylinders; 2 — marking of thickness of laying


Establish new laying by a label of "TORAHS" up; edge with labels of thickness of laying direct towards the oil filter (fig. 3.20). Establish into place a head of the block of cylinders. Establish bolts of fastening of a head of the block of cylinders, previously having oiled their carving part and heads. Tighten bolts the set moment in the sequence specified fig. 3.18.
At installation of the block of cylinders replace all earlier removed laying.
Installation of a head of the block of cylinders carry out as it should be, the return to removal, having adjusted thus a tension of driving belts of a camshaft and TNVD. Pump over system of supply of fuel. Fill in liquid in system of cooling of the engine and remove air from system. Check and adjust if necessary TNVD work. Check operation of the engine.

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5.3.4. Dismantling, check of a technical condition and repair of a head of the block of cylinders