Mazda 626

1991-1998 of release

Repair and car operation


Mazda 626

+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engines
   + 3.1. Petrol engines (1,6 and 1,8 liters)
   - 3.2. Petrol 4-cylinder engine (2 liters)
      3.2.1. Introduction
      3.2.2. Technical characteristics
      3.2.3. Recommendations about repair
      3.2.4. Top dead point
      3.2.5. Cover of a head of cylinders
      3.2.6. Springs, clamps and epiploons of valves
      3.2.7. Gas-distributing belt and asterisks
      3.2.8. Camshafts and pushers
      3.2.9. Inlet collector
      3.2.10. Final collector
      3.2.11. Head of cylinders
      3.2.12. Forward epiploon of a cranked shaft
      3.2.13. Oil pallet
      3.2.14. Oil pump
      3.2.15. Flywheel or leading disk
      3.2.16. Back epiploon of a cranked shaft
      3.2.17. Engine fastenings
   + 3.3. Petrol V6 engine (2,5 liters)
   + 3.4. Partition of engines (1,6 and 1,8 liters)
   + 3.5. Partition of engines (2,0 and 2,5 liters of V6)
   + 3.6. Diesel engine of 2,0 liters
   + 3.7. Systems of electric equipment of the engine
+ 4. Heating and ventilation
+ 5. Fuel system
+ 6. Exhaust system
+ 7. Transmissions
+ 8. Coupling and semi-axes
+ 9. Brake system
+ 10. Running gear
+ 11. Body
+ 12. Electric equipment
+ 13. Electroschemes
+ 14. Good advice


3.2.7. Gas-distributing belt and asterisks
GENERAL INFORMATION

Wear and damages of a gas-distributing belt

 1. Stratification

2. There is no tooth

3. The surface is worn-out

4. The rounded-off side

Removal

PERFORMANCE ORDER
1. Disconnect a wire of the minus plug of the accumulator.
2. Uncover heads of cylinders.
3. Unscrew spark plugs from all cylinders.
4. Weaken a bolt of a pulley of the water pump. Remove a driving belt of the pump of system of hydrostrengthening of a wheel and the compressor of the air conditioner and a driving belt of the generator. Remove a pulley of the water pump.
5. Put the car on the hand brake and block back wheels. Lift and fix a forward part of the car.
6. Remove the right forward wheel.
7. Remove a mudguard of the right forward wing.
8. Remove a pulley of a cranked shaft.
9. Establish a jack under the engine. Slightly raise the engine and remove its right support.
10. Unscrew bolts and remove the top cover of a gas-distributing belt and a tube щупа for measurement of level of oil.
11. Remove directing a gas-distributing belt (And) and bolts of the bottom cover (In).
12. Turn a cranked shaft and combine sinkhronizatsionny labels of asterisks of a cranked shaft.
13. Cовместите sinkhronizatsionny labels of asterisks of camshafts.
14. Asterisks of camshafts have sinkhronizatsionny labels and on a back surface.
15. If you are going to reuse a gas-distributing belt, make on it a label specifying the direction of its rotation.
16. By means of the special tool you can block asterisks of camshafts and simplify the further work which is carried out with a gas-distributing belt.
17. Weaken a tension of a gas-distributing belt. Turn a pulley of a natyazhitel and remove a spring.
18. Remove a gas-distributing belt.
19. If necessary remove an asterisk of a cranked shaft and the sensor of a cranked shaft.
20. If necessary stop a camshaft a wrench, unscrew bolts and remove asterisks of camshafts. The asterisk of a camshaft of inlet valves on a forward surface has a label of "I", and the asterisk of a shaft of final valves has the label "Е".

Check

Prevention

While the gas-distributing belt is removed, try not to rotate cranked and camshafts.

PERFORMANCE ORDER
1. Examine bearings of an intermediate pulley and a pulley of a natyazhitel, check, whether freely they rotate. Examine a spring of a natyazhitel. If necessary replace the worn-out or damaged details.
2. If the gas-distributing belt was strongly damaged, carefully clean all asterisks on which it was established.
3. If on a belt there is cracked or torn-off teeth, means, jams camshafts or shaft of water and oil pumps.
4. If the belt is strongly worn-out, examine asterisks on existence of scratches and an agnail.
5. If the belt is worn-out only on the one hand, check directing a belt and check centering of asterisks.
6. At wear detection surely replace a gas-distributing belt.

Installation

PERFORMANCE ORDER
1. Carefully clean area of installation of a gas-distributing belt in a forward part of the engine.
2. Establish a pulley of a natyazhitel and an intermediate pulley.
3. Establish asterisks of camshafts and an asterisk of a cranked shaft.
4. Combine sinkhronizatsionny labels of asterisks.
5. Put on a gas-distributing belt asterisks and pulleys. also remove the tool blocking asterisks of camshafts.
6. Turn a pulley of a natyazhitel and establish a spring.
7. Turn a cranked shaft on two complete revolutions and check sinkhronizatsionny labels. When you rotate a cranked shaft, stop, if will feel resistance. Most likely, because of the wrong combination of labels, valves concern pistons. Recheck installation of labels and only then continue.
8. Establish the remained details, get the engine and check its work.