2.8.1. Mechanism of gas distribution of 4-cylinder engines


Mechanism of gas distribution of 4-cylinder engines


Gas distribution adjustment

1 — an asterisk of a bent shaft
2 — a camshaft asterisk

3 — an asterisk of an intermediate shaft
4 — a boot of the tension device of a chain


Details of the mechanism of gas distribution of 4-cylinder engines

1 — a bent shaft
2 — an asterisk of a bent shaft
3 — a distributive chain
4 — an intermediate shaft of the drive of the fuel pump and sensor distributor of ignition
5 — a camshaft asterisk
6 — the tension device of a chain
7 — a boot of the tension device
8 — uspokoitel of a chain
9 — the camshaft

10 — a yoke
11 — a yoke axis
12 — the directing valve plug
13 — valves
14 — a spring
15 — a plate of a spring
16 — crackers
17 — a pusher
18 — an adjusting bolt


Section of a pulley and asterisk of a bent shaft

1 — a bent shaft
2 — an adjusting spline
3 — an asterisk of a bent shaft
4 — a pro-rate of the drive of the oil pump
5 — an epiploon holder
6 — an epiploon
7 — a camshaft drive cover

7 — a camshaft drive cover
8 — a spline
9 — a pulley nave
10 — a dish-shaped washer
11 — a fastening bolt
12 — a bolt of fastening of a pulley to a nave


Replacement of a chain of the drive of the camshaft

The chain can be replaced from above the engine. However when replacing a chain it is recommended to uncover the distributive mechanism, to check a condition of uspokoitel, a boot and a natyazhitel of a chain and asterisks.


Removal of a chain

Tags of installation of gas distribution on the camshaft. The arrow showed alignment of a tag with the plane of a head of cylinders


 PERFORMANCE ORDER

  1. Put a cowl in vertical position.
  2. Merge oil from the engine.
  3. Merge cooling liquid.
  4. Disconnect a wire of "weight" from the rechargeable battery.
  5. Remove the air filter.
  6. Remove a radiator.
  7. Remove the fan.
  8. Depending on a year of release of the car weaken and take off a belt of the drive of the generator or mnogoruchyevy a belt of the drive of auxiliary units.
  9. Remove the water pump.
  10. Remove auxiliary units (the conditioner compressor, the pump of the hydraulic booster of steering, the generator) from a camshaft drive cover and suspend them in a motor compartment, trying not to disconnect hoses.
  11. Remove the VMT sensor.
  12. Remove an engine mudguard.
  13. Turn off bolts of fastening of the stabilizer of cross resistance to a body.
  14. Depending on a complete set remove the forward buffer.
  15. Disconnect an arm of fastening of a reception pipe of mufflers to the transmission and separate a pipe and a final collector.
  16. Turn off bolts of fastening of a support of the transmission to a cross beam.
  17. Turn off bolts of fastening of a case of the engine.
  18. Turn off bolts of fastening of an arm of the engine to a cross beam.
  19. Moor the engine by means of a chain of a waist and lift it so that to remove a case.
  20. Remove an arm of an oil receiver and a maslozaborny pipe.
  21. Uncover a cylinder head.
  22. Turn off four bolts of fastening of a cover of the drive of the camshaft to a head of cylinders.
  23. Remove the ignition sensor distributor.
  24. Drown adjusting pins in the block of cylinders.
  25. Turn off bolts of fastening of a cover to the block of cylinders, lower a cover for separation of laying of a head of cylinders (try not to damage laying) and remove it.
  26. Turn a bent shaft to an exit of the piston of the 1st cylinder in VMT that corresponds to a combustion phase (a tag on the forward bearing of the camshaft).
  27. Remove a pusher of a natyazhitel of a chain.
  28. Remove uspokoitel, a boot and a natyazhitel of a chain.
  29. Remove one of chain links, having cut with an abrasive circle of its axis.
  30. Remove a chain from asterisks.
  31. Check a condition of asterisks, uspokoitel, a natyazhitel of a chain.


Installation of a chain

Installation of the directing chain

Installation of the displaced spline on a camshaft asterisk for compensation of an extract of a chain.

Arrangement of the aligning camshaft drive cover pins on the block of cylinders

Removal of an asterisk of the drive of the camshaft

At installation of a pulley of a bent shaft direct a convex part of three dish-shaped washers to a pulley


 PERFORMANCE ORDER

  1. Check position of the piston of the 1st cylinder in VMT and position of the camshaft.
  2. Put on a new chain asterisks, having directed safety washers of quickly connecting link towards a camshaft drive cover.
  3. Install uspokoitel of a chain, a boot and press the piston of a natyazhitel of a chain.

    Insignificant shift of the camshaft in relation to a bent shaft can be eliminated with installation of the displaced spline on a camshaft drive asterisk.

  4. Check a condition of the oil pump and replace epiploons.
  5. Cut paper laying of a cover of the drive of the camshaft in places of a gap.
  6. Grease laying with special glue and put it into place.
  7. Pull out the aligning pins from the block of cylinders.
  8. Establish a camshaft drive cover, screw bolts, paying attention to their length and not allowing damage of laying of a head of cylinders.
  9. Gradually tighten bolts of fastening of a cover.
  10. Establish a holder of an epiploon of a bent shaft (when replacing an epiploon replace and I will embrace).
  11. Establish a pulley of a bent shaft and tighten bolts the set moment.
  12. Fix an arm of an oil receiver and a maslozaborny pipe on the radical bearing of a bent shaft.
  13. Put new laying of a case of the engine.
  14. Establish an engine case.
  15. Install the engine on support, tighten bolts of fastening of arms of an engine mount and the transmission.
  16. Connect a reception pipe of mufflers to a final collector, fix an arm of a reception pipe on the transmission.
  17. Install the buffer.
  18. Install the stabilizer of cross stability.
  19. Establish an engine guard.
  20. Install the VMT sensor.
  21. Install the conditioner compressor, the pump of the hydraulic booster of steering and the generator.
  22. Install the water pump with new laying.
  23. Depending on a year of release of the car establish a belt of the drive of the generator or a belt of the drive of auxiliary units and adjust its tension.
  24. Install the fan and a radiator.
  25. Attach hoses and fill in cooling liquid.
  26. Remove air from the cooling system.
  27. Turn a bent shaft on two turns for a conclusion of the piston of the 1st cylinder in VMT.
  28. Make sure that the tag on the camshaft is opposite to the plane of a head of cylinders.
  29. Establish a cover of a head of cylinders and fill in oil.
  30. Install the ignition sensor distributor.
  31. Check idling of the engine, installation of the moment of ignition and be convinced of lack of a leak of oil and cooling liquid.