Audi 100

1982-1990 of release

Repair and car operation




Audi 100
+ 1.1. Controls and devices
+ 2. Technical characteristics
- 3. Engines
   - 3.1. Four-cylinder engines
      3.1.1. Removal and engine installation
      - 3.1.2. Dismantling and engine assemblage
         3.1.2.1. Removal and installation of a head of the block of cylinders
         3.1.2.2. Removal of a camshaft and pushers of valves
         3.1.2.3. Camshaft survey
         3.1.2.4. Definition of a technical condition of hydropushers of valves
         3.1.2.5. Installation of a camshaft and pushers of valves
         3.1.2.6. Removal and installation of valves (dismantling of a head of the block)
         3.1.2.7. Survey, дефектовка and repair of details of a head of the block of cylinders
         3.1.2.8. Backlashes between cams of a cam-shaft and pushers of valves
         3.1.2.9. A camshaft drive
         3.1.2.10. Removal and installation of an intermediate shaft
         3.1.2.11. Removal and flywheel installation
         3.1.2.12. Replacement of epiploons of a cranked shaft
         3.1.2.13. Removal and installation oil картера
         3.1.2.14. Removal, check and installation of the oil pump
         3.1.2.15. Dismantling of shatunno-piston group
         3.1.2.16. Survey and check of details of shatunno-piston group
         3.1.2.17. Assemblage of shatunno-piston group
         3.1.2.18. Removal, survey and installation of a cranked shaft
   + 3.2. Five-cylinder engines
   + 3.3. The diesel engine
+ 4. Cooling system
+ 5. An exhaust system
+ 6. The power supply system
+ 7. Transmission
+ 8. A running gear
+ 9. A steering
+ 10. Brake system
+ 11. A body
+ 12. An electric equipment


eb52c3b6



3.1.2.1. Removal and installation of a head of the block of cylinders
THE GENERAL DATA

Order of a tightening of bolts of a head of the block of cylinders


The engine is removed from the car

PERFORMANCE ORDER
1. To remove the top cover 8 (fig. of the Detail of a drive of a camshaft see) camshaft drive.
2. To turn away eight nuts and to uncover 11 heads of the block of cylinders (fig. the Four-cylinder engine see).
3. To remove an inlet pipe and a final collector.
4. To turn a cranked shaft for a pulley so that the piston of 1st cylinder has risen in the top dead point (century of m. т.) a compression step (both valves are closed). Thus the label on a pulley of a cranked shaft coincides with an arrow on the bottom cover of a drive of a camshaft, and a label on a camshaft cogwheel – with a label on the top cover of a drive of a camshaft (or with the top plane of a lining of a cover of a head of cylinders on the left side of the engine), as is shown in drawing.
5. Definitively to turn away a nut 16 and to remove натяжитель 15 belts.
6. To turn away a bolt of fastening of a back cover 10 drives of a camshaft to a head of the block of cylinders.
7. To turn away bolts of 14 fastenings of a head 15 blocks of cylinders. Bolts to turn on in regular intervals in an order, the return specified in fig. the Order of a tightening of bolts of a head of the block of cylinders.
8. To remove a head of the block of cylinders.
9. To remove a lining of 7 heads of the block.
10. To establish a head of the block of cylinders upside-down. Thus it is necessary to replace a lining of 7 heads of the block and a lining of 9 covers of a head of the block of cylinders. The lining 7 should be established on a surface of the block of cylinders upwards by words "OBEN-TOP". To tighten bolts of fastening of a head of the block of cylinders in the sequence shown on fig. the Order of a tightening of bolts of a head of the block of cylinders, in three stages: 1st stage – 40 Нм (4,0 кгсм); 2nd stage – 60 Нм (6,0 кгсм); 3rd stage – to tighten further on a half-turn (180 ).

The engine on the car

In need of grinding in or replacement of valves, removals of a deposit from walls of chambers of combustion, replacement of a lining of a head of the block of cylinders, etc. it is possible to remove a block head, without dismantling the engine from the car.

PERFORMANCE ORDER
1. To disconnect a wire from "the minus" plug of the storage battery.
2. To merge a liquid from cooling system (subsection 4.1 subitem 1-3 see).
3. To remove the generator (subsection 12.1.3.1 subitem 2-7 see).
4. To turn away a reception pipe of the muffler from a final collector (cм. Subsection 5.1 item 1).
5. To remove an inlet pipe and a final collector.
6. To disconnect wires of a high voltage and to turn out candles.
7. To disconnect from a head of the block of an electricity cable, ropes and hoses, preliminary having marked them.
8. To remove a head of the block of cylinders (the Engine see it is removed from subitem 1-9 car).