4.20. A head of the block of cylinders

If repair of a head of the block of cylinders of the engine established on the car is necessary, remove it as it is described in subsection «Replacement of a lining of a head of the block of cylinders». In most cases repair of a head of the block of cylinders consists in grinding in or replacement of valves, replacement of directing plugs of valves, replacement or polishing of saddles of valves. At such malfunctions as infringement of tightness of channels of a shirt of system of cooling and коробление привалочной surfaces to the block of cylinders, replace a block head.

It be required to you: keys «on 13», «on 17», «on 21», a candle key, a screw-driver, круглогубцы (tweezers), the adaptation for compression клапанных springs.

1. Disconnect from a branch pipe on a receiver a hose of a regulator of pressure of fuel.	2. Turn away a nut of fastening of a receiver to an inlet pipe and...

3.... Remove a receiver and the lining established under it.

THE NOTE In the presence of the adaptation for compression клапанных the springs, different on a design from shown (for example, screw, rolled in an aperture in a block head under a hydrosupport), probably, a receiver it is not required to remove. For convenience of work it is possible to remove an inlet pipe and a final collector (Replacement of a lining of an inlet pipe and a final collector »), and also other hinged knots removed together with a head, however, see« if repair or replacement of these knots is not required, at sufficient skill to repair a block head it is possible and without removing them.

4. Turn out all spark plugs.	5. Establish on a head of the block the adaptation for compression клапанных springs, enclose under the valve a suitable emphasis (for example, a head from a tooling), compress springs and...

6.... Take crackers from a plate of springs.	7. Remove the adaptation, a plate of springs...

8.... Springs...	9.... A basic washer internal and...

10.... External springs.

11. Take out the valve from the directing plug.

12. In the same way remove other valves.

13. Collect a head of the block of cylinders in an order, the return to dismantling, using the new or prochecked details. Replace all linings new.

It be required to you: a micrometer, a calliper, a ruler.

1. Remove a deposit from combustion chambers.

GOOD ADVICE Preliminary soak a deposit kerosene. Mechanical clearing of a deposit is possible. Be careful – avoid to inhale a dust formed at cleaning of chambers of combustion. For prevention of formation of a dust periodically moisten a deposit with kerosene.