Repair VW Sharan

. Diesel engines: 1,9 l TDI.
+ 1. Introduction
+ 2. Engine VR6
- 3. The two-litre engine (ADY)
   3.1. Removal and installation
   + 3.2. Dismantling and assemblage
   - 3.3. A head of the block of cylinders and valves
      3.3.1. Removal of a head of the block of cylinders
      3.3.2. Dismantling of a head of the block of cylinders
      3.3.3. Repair of a head of the block of cylinders
      3.3.4. Assemblage of a head of the block of cylinders
      3.3.5. Installation of a head of the block of cylinders
      3.3.6. A hydraulic pusher
      3.3.7. Replacement of an epiploon of a camshaft
   + 3.4. Pistons and rods
   3.5. The block of cylinders
   + 3.6. A cranked shaft and radical bearings
   + 3.7. A mechanism drive газораспределения
   3.8. Tension adjustment приводного a belt of units of the engine
   3.9. An intermediate shaft
   3.10. Compression check in engine cylinders
   3.11. System of release of the fulfilled gases
   3.12. System of clearing with application of the activated coal
   3.13. System рециркуляции the fulfilled gases
+ 4. System of greasing of the engine
+ 5. Cooling system
+ 6. System of injection of fuel of engine VR6
+ 7. System Simos of injection of fuel of the 2,0-litre engine
+ 8. Ignition system
+ 9. Coupling
+ 10. A mechanical 5-step transmission
+ 11. Shaft of a drive of wheels
+ 12. The steering hydraulic booster
+ 13. A forward suspension bracket
+ 14. A back suspension bracket
+ 15. Brake system
+ 16. An electric equipment
+ 17. The diesel engine
+ 18. System of greasing of the diesel engine
+ 19. System of cooling of the diesel engine
+ 20. The power supply system of the diesel engine and turbocharger
+ Maintenance service card
+ Specifications and characteristics
+ Electroschemes
Folksvagen Sharan/Sharan repair>> The two-litre engine (ADY)>> Head of the block of cylinders and valves>> Removal of a head of the block of cylinders
Head of the block of cylinders remove from the engine on the car if for malfunction elimination it is not required to assort all engine.

The prevention
Under no circumstances do not remove a head of the block of cylinders at temperature of the engine more than 40 ° C as it can lead to deformation of a head of the block of cylinders.

The note
If on the car the anticreeping system with a protective code is established, the code needs to be had at itself to include system after connection АБ.


Fig. 105. Details of the top part of a head of the block цилиндров:1 — a bolt, 16 Н·м; 2 — the central cover (over the top part of the inlet pipeline); 3 — a cover маслоналивной mouths; 4 — a nut, 10 Н·м; 5 — a rigidity edge; 6 — a cover of a head of the block of cylinders; 7 — маслоотражательный a guard; 8 — a bolt of fastening of a head of the block of cylinders; 9 — a lining of a cover of a head of the block of cylinders; 10 — a head of the block of cylinders; 11 — a lining of a head of the block of cylinders; 12 — an elevating eye; 13 — a camshaft cogwheel; 14 — заглушка; 15 — from ventilation system картера; 16 — the T-shaped union; 17 — an O-shaped sealing ring (always on replacement)





Details which are required to be removed to dismantle a head of the block of cylinders from the block of cylinders, are shown on fig. 105.
Removal of a head of the block of cylinders spend in a following order:
- Disconnect the plug «–» from АБ, having turned away a corresponding bolt and a nut;

The prevention
To avoid damage ЭБУ, it is necessary to disconnect plugs AB only at the switched off ignition.

The prevention
At detachment АБ all written down codes in a memory are erased.

- Merge cooling liquid from system of cooling (item 5.1.1);
- Remove the top part of an inlet collector;
- Disconnect the top hose of a cooling liquid from a radiator to a branch pipe;
- Disconnect all electric wires from a head of the block of cylinders;
- Disconnect топливопроводы, a cable of a drive throttle заслонки and a vacuum hose of the amplifier of a brake drive;

The prevention
Топливопроводы are under pressure. Before to disconnect a fuel hose from its fastening, clasp a place of joining of a fuel hose a thick rag and, cautiously pulling together it from a fastening place, dump in system pressure.

- Mark and disconnect all pipelines, electric wires, hoses, connections etc. between a head of the block of cylinders and a body;
- Uncover 6 (fig. 105 see) heads of the block of cylinders together with a lining;
- Remove маслоотражательный a guard 7 (fig. 105 see) and two strengthenings, located on each side covers of a head of the block of cylinders;
Fig. 106. Details of a drive of the mechanism газораспределения: 1 — bolts, 55 Н·м; 2 — a bolt, 20 Н·м; 3 — an engine mount collar; 4 — the top part of a protective cover; 5 — a roller of the tension adaptation; 6 — a dustproof cap; 7 — bolts, 10 Н·м; 8 — the bottom part of a protective cover; 9 — a pulley of a drive of the pump of system of cooling; 10 — поликлиновой a belt; 11 — a flywheel; 12 — клиновой a belt; 13 — a pulley of the pump of system of cooling; 14 — a bolt, 25 Н·м; 15 — a pulley of a cranked shaft; 16 — a bolt, 25 Н·м; 17 — the lever of the tension adaptation поликлинового a belt





- Remove the top protective cover 4 (fig. 106) gear приводного a belt;
- Turn away a nut of fastening of the mechanism of a tension, ослабьте gear приводной a belt (see подразд. 3.7) and cautiously remove it from a camshaft pulley. Thus hold a belt внатяг, and in the corresponding way adhere it that it has not slipped from a pulley of a cranked shaft. But do not adhere it thus strongly tense;
- Turn off from a head of the block of cylinders a back protective cover of the gear belt located behind a gear belt;
Fig. 107. Sequence of an inhaling of bolts of fastening of a head of the block of cylinders. Отворачивание bolts it is carried out in return sequence





- In stages turn on in sequence, return specified in fig. 107, bolts of fastening of a head of the block of cylinders, take out bolts and remove a head of the block of cylinders with a lining.
Fig. 108. Camshaft details: 1 — a bearing cover № 5; 2 — a bearing cover № 4; 3 — a bearing cover № 3; 4 — a bearing cover № 2; 5 — a nut, 20 Н·м; 6 — a bearing cover № 1; 7 — a camshaft; 8 — segment шпонка; 9 — a bolt with a washer, 80 Н·м; 10 — a camshaft cogwheel





The camshaft 7 (fig. 108 see) also can be removed from the engine established on the car (item 3.3.3 see).