Service, the device and Folksvagen Sharan repair - 2.6.1. Removal of a cranked shaft

Repair VW Sharan

. Diesel engines: 1,9 l TDI.
+ 1. Introduction
- 2. Engine VR6
   + 2.1. Cнятие and installation
   + 2.2. Dismantling and assemblage
   + 2.3. A head of the block of cylinders and valves
   + 2.4. Pistons and rods
   2.5. The block of cylinders
   - 2.6. A cranked shaft and radical bearings
      2.6.1. Removal of a cranked shaft
      2.6.2. Check of a cranked shaft
      2.6.3. Installation of a cranked shaft
      2.6.4. Epiploons of a cranked shaft
      2.6.5. A flywheel
   + 2.7. A mechanism drive газораспределения
   2.8. An intermediate shaft
   2.9. Compression check in engine cylinders
   + 2.10. System of release of the fulfilled gases
+ 3. The two-litre engine (ADY)
+ 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 турбокомпрессор
+ Maintenance service card
+ Specifications and characteristics
+ Electroschemes

Folksvagen Sharan/Sharan repair>> Engine VR6>> Cranked shaft and radical bearings>> Removal of a cranked shaft

For removal of a cranked shaft it is necessary to remove the engine from the car.

As the engine should be disassembled completely, carry out following recommendations about full dismantling of the engine:

Fig. 70. Blocking by a flywheel clamp

- Remove a transmission from the engine. On the car with a mechanical transmission a screw-driver inserted into a gear wreath of a flywheel, fix a flywheel in motionless position and turn out bolts of fastening of a flywheel. For reliable fixing of a flywheel it is possible to drill two apertures in a metal strip and by means of bolts of fastening of coupling to tighten it to flywheel opposite sides (fig. 70) and to turn off flywheel bolts;

- Before flywheel removal кернером mark a relative positioning of a press disk and a flywheel to avoid an error at installation. Turn off from outside a forward part of the engine a bolt of a pulley of a cranked shaft;

- On the car with an automatic transmission turn on приводной a pulley.

The further works on engine dismantling are spent on its forward part. Execute following operations:

Fig. 71. A forward part of the engine with the established details: 1 — a collar for an engine mount; 2 — the tension adaptation клинового a belt; 3 — the generator; 4 — an arm of the generator and the pump of the hydraulic booster of a steering

- Turn away bolts of an arm 1 (fig. 71) engine mounts in the top part of the engine;

- Turn away the tension adaptation located under it 2 for клинового a belt (3 bolts);

- Disconnect a wire tip, "a mass" cable, a collar for cable fastening, turn away two bolts of fastening of the generator and remove the generator 3;

- Mark bolts (six bolts of different length) and turn away a basic arm of the generator and the pump of the hydraulic booster of a steering 4;

Fig. 69. The block of cylinders with the details established on it: 1 — a bolt, 25 Н�м; 2 — a pulley of the pump of cooling; 3 — a bolt, 20 Н�м; 4 — the pump of system of cooling; 5 — an O-shaped sealing ring, always replace new; 6 — масломерный щуп with a directing tube; 7 — blocking of tap of oil, 5 Н�м; 8 — the detonation gauge № 2 (for updating of the moment of ignition); 9 — the screw, 5 Н�м; 10 — a cover of a drive of the oil pump; 11 — an O-shaped sealing ring, always replace new; 12 — a drive of the oil pump; 13 — the block of cylinders; 14 — an intermediate shaft; 15 — the adjusting washer, an inscription on it should look upwards; 16 — a bolt, 10 Н�м; 17 — an O-shaped sealing ring, always replace new; 18 — a lining oil картера; 19 — the thermostat case; 20 — a bolt, 10 Н�м; 21 — an O-shaped sealing ring, always replace new; 22 — the gauge of frequency of rotation of a cranked shaft; 23 — a bolt, 5 Н�м; 24 — a bolt, 20 Н�м; 25 — an O-shaped sealing ring

- Turn away directing tube масломерного щупа 6 (fig. 69 see), pull out it from the block of cylinders and remove a sealing ring 25:

Fig. 72. The air soaking up chamber of an inlet collector: 1 — a tube масломерного щупа; arrows show bolts of fastening of the chamber

- Turn away fastening bolts (fig. 72, arrows) the air soaking up chamber of an inlet collector;

- Turn away a bolt of fastening of a pulley of the pump of a cooling liquid and a plait of wires of the air soaking up chamber (remove a hose, separate штекерную колодку the gauge of position throttle заслонки, remove a collar from a plait of wires and disconnect "a mass" cable);

- Remove arms of the air soaking up chamber. At first disconnect the system pipeline рециркуляции the fulfilled gases (EGR) from the case throttle заслонки. Then turn away three bolts of the air soaking up chamber from a head of the block of cylinders and remove the air soaking up chamber together with a lining;

- Remove the pump of cooling of the engine for what disconnect going to the case of the thermostat a hose, separate штекерную колодку and take the pump downwards from rubber fastening. After pump removal remove pump fastening;

- Disconnect from system EGR valve штекерную колодку, open two clips to liberate a plait of wires and separate following штекерную колодку, located nearby;

- Separate штекерную колодку the gauge of temperature of a cooling liquid and a thermoswitch of the fan and unscrew a bolt of fastening of an arm;

Fig. 73. Connections of wires near to the oil filter: 1 — the gauge of temperature of oil; 2 — the switch of pressure of oil on 140 кПа; 3 — the switch of pressure of oil on 30 кПа

- Separate штекерные колодки the gauge of temperature of oil 1 (fig. 73), the switch of pressure of oil 2 (a black-yellow cable) on 140 кПа and the switch of pressure of oil 3 (a brown-dark blue cable) on 30 кПа;

- Turn away four bolts of fastening directing wires of a high voltage and remove a fuel distributive highway together with atomizers (the distributor of giving of fuel together with atomizers);

- Turn away two bolts of fastening and remove the valve of switching and the inlet valve of secondary air system;

Fig. 74. Places of fastening of an inlet collector are shown by arrows

- Turn away fastening bolts (fig. 74) and remove an inlet collector together with an elevating eye of the engine;

Fig. 75. Places of fastening of the case of the thermostat are shown by arrows

- Turn away the thermostat case (fig. 75);

- Turn away a nut and remove system EGR valve together with an arm (ослабьте накидную a nut, turn out 2 bolts);

- Uncover also a lining of a head of the block of cylinders. Holders топливопроводов will thus be released;

- Turn away ten bolts of fastening and remove the top protective cover of a drive of units of the engine. Unscrew натяжитель chains which is located on a lateral face of a head of the block of cylinders;

- Note (their direction of rotation is desirable colour) on an outer side of chains of a drive of a camshaft;

- Turn out six bolts from the block of cylinders and five their bolts oil картера and remove (on the back party of the engine) a flange of a sealing ring of a cranked shaft. It is desirable to replace a sealing ring new;

Fig. 76. Places of fastening of the bottom protective cover of a drive of units of the engine are shown by arrows

- Turn away sixteen bolts (fig. 76) in the block of the cylinders, three bolts in oil картере, one bolt — from an arm and remove the bottom protective cover of a drive of units of the engine;

- Remove chains of a drive of a camshaft and other details of a drive (cм. подразд. 2.7.);

- Remove a head of the block of cylinders (item 2.3.1 see);

- Disconnect a hose of a cooling liquid from the pump of system of cooling and from the block of cylinders, remove a lining, turn away bolts of fastening of an oil radiator and remove it together with a hose of a cooling liquid. Watch, that the cooling liquid did not follow;

Fig. 77. Fastening of the oil filter on the engine: 1 — switches of pressure of oil

- Remove the oil filter with a lining. If it is necessary, turn out both switches of pressure of oil 1 (fig. 77).

- Remove the gauge of a detonation 8 (fig. 69 see) and the gauge of frequency of rotation 22 cranked shaft;

- Block a flywheel of a cranked shaft a clamp (fig. 70 see) and turn out a bolt гасителя fluctuations of a cranked shaft.

If it is required to remove an intermediate shaft:

Fig. 78. Places of fastening of the tension device of a single-row chain of an intermediate shaft are shown by arrows

- Turn away two bolts of fastening (fig. 78) натяжителя an unary chain;

- Block a cranked shaft a clamp, turn away a bolt located in the centre of an asterisk of an intermediate shaft and remove an asterisk together with a chain (preliminary having marked a direction of movement of a chain). Directing to a chain also can be removed;

- Turn away four bolts of fastening of an intermediate shaft and remove it;

- Remove the pump of system of cooling together with a pulley;

- Remove oil картер (see подразд. 4.1);

The note

After removal oil картера put it on the bottom surface.

Fig. 79. Removal of a power shaft of the oil pump

- Turn away two bolts of fastening and uncover a power shaft of the oil pump. Then take a power shaft (fig. 79);

- Remove the oil pump (see подразд. 4.2.1);

- If it is required to remove only a cranked shaft pistons and rods can remain in the block of cylinders. In this case by turns mark and remove covers of bearings of rods and leave them in gathering with loose leaves. Otherwise remove pistons and rods (see подразд. 2.4.1). Remember that used �pliable screws� always should be changed;

Fig. 80. Check of an axial free wheeling of a cranked shaft by means of the measuring device

- Measure an axial free wheeling of a cranked shaft. For this purpose establish on a forward part of the block of cylinders a rack with the indicator so that the indicator leg rested against a flange of the forward end of a cranked shaft (fig. 80). A screw-driver shift a cranked shaft aside, and expose the device on a zero then move a shaft to other party. The arrow of the device will show an axial free wheeling of a shaft which should be no more than 0,25 mm. If the course is more, result it in norm, having replaced old half rings new or having established half rings of the increased thickness.

Fig. 81. Measurement of an axial free wheeling of a cranked shaft щупом

Fig. 82. Elements of a cranked shaft and radical bearings: 1 — a bolt of a cover of the bearing; 2 — covers of radical bearings (the radical bearing №1 — from outside гасителя fluctuations); 3 — the loose leaf of the radical bearing; 4 — an adjusting persistent half ring of the bearing № 5; 5 – a cranked shaft; 6 — a gear rim of the gauge of frequency of rotation; 7 — a flywheel; 8 — a bolt of fastening of a flywheel, always on replacement; 9 — a bolt of a gear rim; 10 – an adjusting washer in the block of cylinders for the bearing № 5; 11 — the loose leaf of the bearing of the block of cylinders. The gear rim should be changed 6 gauges of frequency of rotation always if it removed

The average support (the bearing № 5) has the top and bottom persistent half rings 4 and 10 (fig. 82 see) by which the axial free wheeling of a cranked shaft is regulated. Also on two half rings is available on other party of a cover of the radical bearing and the block of cylinders; in the absence of the measuring device it is possible to measure an axial free wheeling with the help щупа (fig. 81) on average шатунной to a neck, between a flange of the bearing of a rod where persistent half rings, and a surface of a cheek of a cranked shaft settle down;

- Turn away bolts of fastening of a flange in a forward part of the engine and remove a flange. In a flange there is a sealing ring which should be beaten out at once;

- Gradually cross-wise turn off bolts 1 (fig. 82) covers of bearings of a cranked shaft 5 and by turns remove them. Check up, that covers have been marked by corresponding numbers. Numbering of covers of bearings spend from outside a pulley of a drive of units of the engine;

- Remove the bottom loose leaves (№ from 1 to 7) bearings of radical necks and put them together with corresponding covers of bearings. The bottom loose leaves of support of a cranked shaft have no flutes on an internal surface. On them it is impossible to make any подгоночных operations. At teases, risks or отслоениях replace loose leaves new;

- Take out from nests of bearings a cranked shaft;

- Take out the top loose leaves and put them with corresponding covers of bearings. The top loose leaves of support of a cranked shaft have flutes for greasing;

- Remove the bottom persistent half ring from an average support (from the bearing № 5).