Audi 100

1982-1990 of release

Repair and operation of the car




Audi 100
+ 1.1. Governing bodies and devices
+ 2. Technical characteristics
- 3. Engines
   - 3.1. Four-cylinder engines
      3.1.1. Removal and installation of the engine
      - 3.1.2. Dismantling and assembly of the engine
         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. Survey of a camshaft
         3.1.2.4. Definition of 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, troubleshooting and repair of details of a head of the block of cylinders
         3.1.2.8. Gaps between cams of a cam-shaft and pushers of valves
         3.1.2.9. Camshaft drive
         3.1.2.10. Removal and installation of an intermediate shaft
         3.1.2.11. Removal and installation of a flywheel
         3.1.2.12. Replacement of epiploons of a cranked shaft
         3.1.2.13. Removal and installation of an oil case
         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. Assembly of shatunno-piston group
         3.1.2.18. Removal, survey and installation of a cranked shaft
   + 3.2. Five-cylinder engines
   + 3.3. Diesel engine
+ 4. Cooling system
+ 5. Exhaust system
+ 6. Power supply system
+ 7. Transmission
+ 8. Running gear
+ 9. Steering
+ 10. Brake system
+ 11. Body
+ 12. Electric equipment










3.1.2.1. Removal and installation of a head of the block of cylinders

GENERAL INFORMATION

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 (see rice. Camshaft drive details) camshaft drive.
2. To turn off eight nuts and to uncover the 11th heads of the block of cylinders (see rice. Four-cylinder engine).
3. To remove an inlet pipe and a final collector.
4. To turn a cranked shaft for a pulley so that the piston of the 1st cylinder rose in the top dead point (v.m.t.) a compression step (both valves are closed). Thus the tag on a pulley of a cranked shaft coincides with an arrow on the lower cover of the drive of a camshaft, and a tag on a camshaft cogwheel – with a tag on the top cover of the drive of a camshaft (or with the top plane of laying of a cover of a head of cylinders on the left side of the engine), as shown in drawing.
5. Finally to turn off a nut 16 and to remove a natyazhitel of the 15th belt.
6. To turn off a bolt of fastening of a back cover of the 10th drive of a camshaft to a head of the block of cylinders.
7. To turn off bolts of the 14th fastening of a head of the 15th block of cylinders. To turn off bolts evenly as it should be, the return specified rice. 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 laying of the 7th head of the block.
10. To establish a head of the block of cylinders upside-down. Thus it is necessary to replace laying of the 7th head of the block and laying of the 9th cover of a head of the block of cylinders. Laying 7 has to be established on a surface of the block of cylinders by the words "OBEN-TOP" up. To tighten bolts of fastening of a head of the block of cylinders in the sequence shown on rice. An order of a tightening of bolts of a head of the block of cylinders, in three stages: the 1st stage – 40 N · m (4,0 kgfs · l); the 2nd stage – 60 N · m (6,0 kgfs · l); – to tighten the 3rd stage further half way (180 °).

The engine on the car

In need of grinding in or replacement of valves, removal of a deposit from walls of combustion chambers, replacements of laying 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 battery.
2. To merge liquid from the cooling system (see subitem 1-3 of subsection 4.1).
3. To remove the generator (see subitem 2-7 of subsection 12.1.3.1).
4. To turn off a reception pipe of the muffler from a final collector (cm. item 1 of subsection 5.1).
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 an electricity cable block head, ropes and hoses, previously having marked them.
8. To remove a head of the block of cylinders (see the Engine it is removed from the car of subitem 1-9).