2.6.1.3. 5-cylinder petrol engine

Order of an inhaling of bolts of a head of the block of cylinders

To remove a head of the block of cylinders only on the cooled-down engine (room temperature). Exhaust and inlet collectors are not removed.

The head of the block of cylinders can be removed, without removing the engine.

Features of removal and installation of a head of the block of cylinders of the diesel engine are described in subsection 2.6.1.4. One or several signs can distinguish defect of laying of a head of the block of cylinders on the following:

 – to loss of power;
 – to leak of cooling liquid (white clouds of exhaust gases at the warm engine);
 – to oil leak;
 – cooling liquid in engine oil (level of oil does not decrease, and increases, gray color of engine oil, vials of foam on the index of level of oil, oil liquid);
 – engine oil in cooling liquid;
 – to a strong swirling of cooling liquid;
 – to lack of a compression between two next cylinders.

Removal

PERFORMANCE ORDER
1. To disconnect a wire of "weight" (-) from the rechargeable battery.

Prevention

At the same time from memory of the radio receiver the code of the anti-theft device and the adjusted radio stations are erased. To disconnect the battery only at the switched-off ignition, otherwise the monitor system of injection of fuel will fail.


2. To remove the top part of an inlet collector.
3. To remove all vacuum hoses. For assembly simplification previously to mark them with an adhesive tape.
4. To disconnect a rope of management of a butterfly valve from the union of a butterfly valve and an emphasis.
5. To separate and disconnect all wires.
6. For simplification of assembly to mark wires with an adhesive tape.

Prevention

To open cable clips and if it is required to cut. Not to remove cable clips in order that at assembly it was possible to establish new clips on old places.


7. To remove candle wires.
8. To uncover the distributor. For this purpose to open the screw-driver two lamellar clips.
9. To remove the distributor runner.
10. To mark with an adhesive tape all fuel-supply lines and to remove them.
11. To completely merge cooling liquid.
12. To weaken collars and to remove all hoses of cooling liquid from a head of the block of cylinders.
13. To install the car on props.
14. To remove the lower casing of a motor compartment.
15. To unscrew an exhaust pipe from an exhaust collector and an arm of the transmission. To lower a little down the exhaust system and to suspend on a wire.
16. To remove the top casing of a gear belt.
17. To weaken a gear belt and to remove from above from a cam-shaft.
18. To unscrew a cover of a head of the block of cylinders.
19. To remove laying of a head of the block of cylinders.
20. To weaken on 1/2 turns and then to unscrew bolts of a head of the block of cylinders as it should be the return their numbering from 12 to 1 (see rice. Order of an inhaling of bolts of a head of the block of cylinders).
21. To check a detachment of all wires and hoses going to a head of the block of cylinders.
22. To remove a head of the block of cylinders, previously having unscrewed screws of a back casing of a gear belt and having unbent it aside.
23. To establish a head of the block of cylinders on two wooden bars.
24. To remove laying of a head of the block of cylinders.

Installation

PERFORMANCE ORDER
1. Before installation to clear a suitable shaber the interfaced surfaces of a head of the block of cylinders and the block of cylinders of the laying remains. To pay attention to that dirt did not get to openings of the block of cylinders. To close openings rags.
2. To check lack of oil in openings for screws of a head of the block of cylinders, if necessary to remove oil. For this purpose to enter pure rags into an opening and to collect oil.

Prevention

The oil which remained in openings at an inhaling of bolts can become the reason of damage of the block of cylinders.


3. To check a head of the block of cylinders with for not planeness by means of a steel ruler and the petal probe, in various places. Not planeness should not exceed 0,1 mm.

Prevention

If the surfaces of consolidation of a head of the block of cylinders are led up, then minimum admissible height of a head should not be underestimated (see subsection 2.10.3).


4. A head of the block of cylinders with ruptures of saddles of valves or rings of saddles of valves, and also the beginning of carving calling of spark plugs can be operated further without reduction of term of their service and a partition if width of gaps does not exceed and = max of 0,5 mm.
5. To replace laying of a head of the block of cylinders always. The inscription "oben" has to indicate a head of the block of cylinders. To establish laying without sealant so that it did not close any opening.
6. For centering of a head of the block of cylinders to screw in in openings of 9 and 10 bolts of a head of the block of cylinders (see rice. Order of an inhaling of bolts of a head of the block of cylinders) the directing V.A.G.-3070 fingers (shooters specified installation sites of fingers). If near at hand there are no fingers, then to make the directing pins most. For this purpose to cut heads at old bolts of a head of the block of cylinders and to saw through at their end face a groove under the screw-driver.
7. To turn the crankshaft for a belt pulley so that all pistons were approximately at equal height.
8. To establish a head of the block of cylinders, paying attention at the same time to the directing pins.
9. To establish the remained 10 bolts with pro-masonry washers and to tighten them by hand. To replace bolts of a head of the block of cylinders always.
10. To unscrew the directing pins the screw-driver and to screw in the remained two bolts with washers. To tighten by hand.

Prevention

To make an inhaling of bolts of a head of the block of cylinders carefully. Before an inhaling it is necessary to check the accuracy of a dynamometer key. Bolts of a head of the block of cylinders drag on on the cold engine.


11. Bolts of a head of the block of cylinders drag on a dynamometer key in the sequence from 1 to 12 in two steps: in the beginning with effort of 40 N · m, and then – 60 N · m. After that the additional inhaling is made by a rigid key: 1/2 turns (180 °). The additional inhaling 90 ° x 2 is allowed (for 2 times on 90 ° everyone). At an inhaling of bolts of a head of the block of cylinders to estimate an angle of rotation on a key handle arrangement concerning the engine: 1/4 turns (90 °) correspond to position of the handle across the engine.

Prevention

At petrol engines the dozatyazhka of bolts of a head of the block of cylinders on the warm engine within service or repair is not admissible.


12. To establish a gear belt.

Prevention

When replacing a head of the block of cylinders with the established cam-shaft it is necessary to oil after installation of a head the surfaces of contact between dish-shaped pushers and a working surface of cams.


13. To establish a cover of a head of the block of cylinders with laying and to tighten the moment 10 N · m. To replace the damaged laying.
14. To establish an exhaust pipe on an exhaust collector.
15. To establish an engine mudguard.
16. To remove the car from props.
17. To put on hoses of cooling liquid and to fix by collars.
18. To connect all electrical wires according to tags an adhesive tape.
19. To install the distributor runner. The movements to and fro to check reliability of fastening.
20. To establish a cover of the distributor and to fix by two lamellar clips.
21. To put on candle wires in an operating procedure of cylinders 1-2-4-5-3. The first cylinder is at a gear belt.
22. To connect all fuel-supply lines and to fix by collars.
23. To connect all vacuum hoses according to tags an adhesive tape.
24. To connect a rope of management of a butterfly valve to a butterfly valve and an emphasis.
25. To put on a heating hose a casing of a forward exhaust pipe and to fix by a collar.
26. To establish an inlet collector.
27. To connect a "weight" wire (-) to the rechargeable battery. To enter an anticreeping code, to program radio stations and to determine the exact time on hours.

Prevention

To connect the rechargeable battery only at the switched-off ignition, otherwise the control unit of system of injection of fuel will fail.


28. To fill in cooling liquid. To replace cooling liquid always.
29. To check oil level in the engine. If laying of a head of the block of cylinders was defective, to replace oil and the filter.
30. To warm up the engine up to the working temperature, to check the level of cooling liquid and tightness of hose connections.
31. To check the ignition moment (see subsection 2.14.6).
32. To check idling and maintenance WITH (see subsection 2.18.1).
33. To check a compression (see subsection 2.11).