4.22. Engine repair

It be required to you: keys «on 10», «on 13», «on 14», «on 17», «on 19», «on 21», «on 22», «on 36» (or a special key for a nut of fastening of a pulley of a cranked shaft, in the absence of such key it is possible to take advantage of an alligator wrench), face heads «on 12» and «on 13» (or a special key for bolts of fastening of a head of the block of cylinders), a screw-driver, a hammer, a stripper of the oil filter.

GOOD ADVICE If there is a possibility, work at the special rotary stand providing access to the engine from different directions as the engine is very heavy for fixing from moving at отворачивании the details of fastening tightened by the big moment.

1. Remove the engine from the car (Removal and engine installation »see«).

2. To similarly how it did on the engine established on the car (without operations on a detachment of wires, pipelines and hinged units), will perform following works: – Remove the oil filter (oil Replacement in the engine and the oil filter »see«); – Remove coupling (Removal and coupling installation »see«); – Remove a flywheel (Removal, installation and дефектовка a flywheel »see«); – Remove a head of the block of cylinders («Replacement of a lining of a head of the block of cylinders» see).

3. Turn away three bolts of fastening of the case of the pump of a cooling liquid to the block of cylinders and remove the pump in gathering with a pulley.

4. Ослабьте an inhaling of the gauge of an alarm lamp of insufficient pressure of oil, keeping an adapter from проворачивания, also turn out the gauge.

5. Remove a boot натяжителя chains of a drive of a camshaft (boot Replacement натяжителя chains of a drive of a camshaft »see«).

6. Shift a screw-driver an asterisk of a cranked shaft and remove it. Unbend edge of a lock washer, turn out a bolt of fastening of an asterisk of the platen of a drive of the oil pump and remove an asterisk.

7. Remove a chain of a drive of a camshaft.

8. Remove заглушку an assembly aperture in the block of cylinders («Replacement of a gear wheel of a drive of the oil pump» see).

9. Uncover сапуна ventilation systems crankcase (Clearing of system of ventilation crankcase »see«).

10. Turn out two bolts of fastening of a persistent flange of the platen of a drive of the oil pump, shift the platen forward and remove it.	11. Hook a screw-driver a gear wheel of a drive of the oil pump and remove it.

12. Turn on two nuts of fastening of a forward cover crankcase couplings and uncover.	13. Turn out two bolts of fastening oil crankcase to the holder of a back epiploon of a cranked shaft...

14.... Six bolts of fastening of the holder to the block of cylinders and, accurately having hooked a screw-driver, remove the holder of an epiploon.

THE PREVENTION Do not lose two bolts with square heads of fastening of a forward cover crankcase coupling. They are freely established in nests of the holder and easily drop out.

15. Turn out the remained bolts of fastening oil crankcase, remove washers and oil картер.

16. If the lining oil crankcase remained on the block of cylinders, remove it.

17. Turn out two bolts of fastening of the oil pump and remove it.

18. If the lining of the oil pump remained on the pump, separate and remove it.

19. Screw two nuts on a hairpin of fastening of an oil separator and mutually tighten them. Turn out a hairpin.	20. Turn out a bolt of fastening of an arm of a drain tube of an oil separator and remove an arm, having shifted it on a tube up to the end.

21. Remove an oil separator with a drain tube.

GOOD ADVICE Before dismantling krivoshipno-shatunnogo the mechanism and piston group mark pistons, rods, loose leaves radical and шатунных bearings that at assemblage to establish them on former places if they are efficient.

22. Turn on two nuts of fastening of a cover of a rod of any cylinder.	23. Shift a cover of a rod from a seat easy blows of a hammer and uncover with the loose leaf.

THE NOTE On a rod and шатунной to a cover cylinder numbers in which they are established are beaten out. Covers of rods невзаимозаменяемы (the rod is processed together with a cover). At figure assemblage (cylinder number) on a rod and a cover should be on the one hand.

24. Press wooden бруском (the hammer handle) bolts of a rod and...	25.... Take out the piston with a rod from the cylinder towards the top plane of the block of cylinders.

26. Similarly remove pistons and rods of other cylinders, turning a cranked shaft for access to nuts of covers of rods

GOOD ADVICE Turn a cranked shaft a key for лыску on the forward end.

27. Turn out two bolts of fastening of any cover of the radical bearing.	28. Separate a cover from a seat easy blows of a hammer and uncover with the bottom loose leaf.

THE NOTE Covers of radical bearings are intended only for one concrete block of cylinders (covers are processed together with the block). Among themselves covers невзаимозаменяемы. On covers the labels corresponding to an order of their installation are put, considering from a forward part of the engine.

29. Remove other covers of radical bearings and remove a cranked shaft.

30. Remove a back persistent half ring (ceramic-metal, yellow colour) a back support of a cranked shaft...	31.... A forward persistent half ring (steel-aluminium) a back support of a cranked shaft...

32.... All top loose leaves of radical bearings of a cranked shaft...

33.... Loose leaves from all covers of rods...

34.... The bottom loose leaves from all covers of radical bearings of a cranked shaft...

35.... Loose leaves from all rods.

THE NOTE If connecting rod bolts have no damages, they can to be taken out from rods.

36. Unclench top компрессионное a ring and remove it.

37. Similarly remove other rings.

38. Remove lock rings of a piston finger, having hooked their pointed tool.	39. Push out a finger from lugs of the piston and the top head of a rod.

GOOD ADVICE Mark details. If they are not damaged and worn a little out, they can be used, having established on former places.

40. Take out шпонку from a groove in the forward end of a cranked shaft.

It be required to you: a portable lamp, a set flat щупов, a ruler, a calliper, нутромер, a micrometer, шабер.

After dismantling carefully wash up details kerosene, blow and dry their compressed air (especially oil channels of details).

1. Examine the block, it is especially attentive – support of a cranked shaft. Cracks in any places of the block are not supposed.

GOOD ADVICE If there is a suspicion on presence of cracks in the block (the cooling liquid in картер has got or oil in cooling liquid), check up tightness of the block at the special stand. Check spend in the repair shops having the corresponding equipment.

2. Examine cylinders from both parties. Scratches, teases and cracks are not supposed.

GOOD ADVICE At survey of cylinders it is recommended to shine mirrors of cylinders with a portable lamp – thus defects are visible much better.

3. Define нутромером actual diameters of cylinders.