VW Touareg repair+ 1. Operation and car maintenance - 2. Engine + Preliminary checks on the car + Mechanical part (petrol engines 3,2L) + Mechanical part (petrol engines 4,2L) + Mechanical part (diesel engines 5,0L) - Removal and stretcher installation Removal and installation of pillows and engine support (right and left) Removal and installation of a conducted disk Removal and installation of a stage of support of a cranked shaft Forward sealing laying of a flange and damper of krutilny fluctuations Replacement of an epiploon of a cranked shaft on the party of a damper of krutilny fluctuations Replacement of an epiploon of a cranked shaft on the party of the mechanism of a gazoraspredeleniye of the engine Replacement of an epiploon of a shaft of a drive of the generator Installation of a cover of the distributive mechanism Removal and installation of a leading gear wheel of a camshaft Check of phases of a gazoraspredeleniye Adjustment of phases of a gazoraspredeleniye Removal and installation of heads of the block of cylinders Removal and installation of covers and laying of heads of the block of cylinders Repair of heads of the block of cylinders + pressurization System (diesel engines) + cooling System (petrol engines) + cooling System (diesel engines) + greasing System (petrol engines) + greasing System (diesel engines) + injection System (petrol engines) + injection System (diesel engines) + System of production of the fulfilled gases + System топливоподачи (beninovy engines) + Tables + 3. Transmission + 4. Running gear + 5. Steering mechanism + 6. Brake system + 7. Onboard electric equipment + 8. Body + electric equipment Schemes |
Volkswagen Touareg / Touareg repair>> Engine>> Removal and stretcher installation>> Repair of heads of the block of cylinders
Verification of the provision of pistons in the top dead point
Measurement of a vystupaniye of the piston in conditions HUNDRED is impossible. Connection of a head of the block of cylinders with the aluminum block the cylinder is carried out by an anchor principle by means of anchor bolts. Thus it is reached such obzhaty the block of cylinders which cannot be reached at the dismantled head of the block of cylinders. On it at replacement of laying of a head of the block of cylinders it is necessary for reason to establish new laying of a head of the block of cylinders with identical index marking.
Sizes of pistons and cylinders
Check of a thermal gap of piston rings
Drive a piston ring from above, at right angle to a cylinder wall, to the bottom opening of the cylinder, at distance about 15 mm from its edge
(fig. 2.209)
.
Check of a gap of piston rings on height
Before check clear a ring flute
(fig. 2.210)
.
Check of diameter of the cylinder
Measure in three places by a cross cross-section distance And and longitudinal In
(fig. 2.211)
.
The tolerance from the nominal size is maximum: 0,05 mm.
Piston: assembly situation and belonging to the piston / cylinder.
Marking is put on a bottom of the piston:
– pistons 1-5 for a number of cylinders 1;
– pistons 6-10 for a number of cylinders 2.
Arrangement: the arrow at the bottom of the piston shows on the absorption party.
Check of axial shift of a cam-shaft
Check at the dismantled tarelchaty pushers and the established covers of a support
(fig. 2.212)
.
First row of cylinders:
– covers of bearings 2, 4 and 6 are established
Second row of cylinders:
– covers of bearings 9, 11, and 13 are established
Limiting wear: Max. 0,15 mm
Put hermetic on landing surfaces of external covers of bearings.
Works order
To put AMV 176 501 hermetic on surfaces with a thin uniform layer 1
(fig. 2.213)
.
First row of cylinders:
Put hermetic – AMV 176 501 on landing surfaces of covers of bearings 1 and 7
Second row of cylinders:
Put AMV 176 501 hermetic on landing surfaces of covers of bearings 8 and 14
Sizes of valves
Camshaft marking (gazoraspredeleniye phase)
Main circle of a klapanny cam: a= mm
Marking is put in the form of the stamped figures and letters on a face surface of the party of a drive of a camshaft
(fig. 2.215)
.
Drive party
First row of cylinders: 07Z G.
Second row of cylinders: 07Z H.
Gazoraspredeleniye phases at a valve stroke 1мм
Processing of saddles of valves
Count the most admissible allowance on processing as follows:
– insert the valve in directing and densely press it to a saddle;
– measure distance And between the end of a core of the valve and the upper edge of a head of the block of cylinders
(fig. 2.216)
;
– calculate the most admissible allowance on processing on the basis of the measured distance And and minimum admissible size.
Minimum sizes:
The inlet valve – 43,4 mm
The final valve – 43,2 mm
The measured distance a minus the minimum size = the most admissible allowance on processing.
Example:
The measured distance – 44,1 mm
The minimum size – 43,4 mm
The most admissible allowance on processing of 44,1-43,4=0,7 mm
Processing of a saddle of the inlet valve
a–Ж35,7 mm
b–1,6 mm
45 ° – the Corner of a basic surface of the valve
Processing of a saddle of the final valve
a–Ж31,4 mm
b–2,7 mm
45 ° – the Corner of a basic surface of the valve
Check of directing plugs of valves
Insert the new valve into directing plug. The end of a core of the valve should be blocked by the directing plug. Because of various diameter of a core use the inlet valve only in the directing plug of the inlet valve and the final valve in the directing plug of the final valve.
Define люфт when rocking valve
(fig. 2.219)
.
Limiting wear: Max. 1,3 mm.
At values люфта exceeding limits of wear – to replace a head of the block of cylinders.
Replacement of sealants of cores of valves (at the established head of the block of cylinders)
Dismantle a camshaft.
Take tarelchaty pushers of valves and put them a working surface down. Do not interchange the position of tarelchaty pushers.
Transfer the piston of the corresponding cylinder to situation VMT.
Establish the assembly adaptation for valves 2036 and establish a support by means of rasporny bolts
(fig. 2.220)
.
Dismantle springs of valves by means of the lever for dismantle of springs of VW valves of 541/1 A and VW 541/5 opravka.
Pull together a sealant of cores of valves by means of a stripper of 3047 A
(fig. 2.221)
.
Installation
Put on the corresponding core of the valve entering in ремкомплект a plastic cover And
(fig. 2.222)
. It helps to avoid damages of a new sealant of a core of the valve B.
Establish a new sealant of a core of the valve in an opravka 3129.
Grease a working edge of a sealant of a core of the valve and carefully establish on directing plug of the valve.
Establish a camshaft.
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