Disassembly of the Nissan Qashqai 2007

Tools:

Pliers
Nozzle on the crank 10 mm
Collar for end nozzle
Screwdriver flat medium
torque wrench
Torx wrench (star) E14
Key XZN 12
Circlip plier
Hammer
Stationery knife

Parts and consumables:

Inserts
Piston rings
Marker
Large paper clip

Note:

Disassembly of the engine oil sump is not allowed. For repair, only the tensioner can be removed, as well as the oil pump drive chain and balancing shafts.

Engine disassembly Nissan Qashqai

1. Remove the power unit.

2. Remove a transmission.

Removing the transmission Nissan Qashqai

3. Remove the cylinder head.

4. Remove the engine oil sump cover.

Removing the oil sump cover Nissan Qashqai

5. Press the shoe of the balance shaft drive chain tensioner and oil pump to align the holes in the plunger and tensioner housing.

Nissan Qashqai Drive Chain Tensioning Shoe

6. Insert a rod of suitable diameter (you can insert a large paper clip) into the hole to fix the tensioner plunger (shown on the removed tensioner for clarity). Remove the two mounting bolts and remove the chain tensioner.

Removed Nissan Qashqai chain tensioner

7. Remove the drive chain of the balancing shafts and the oil pump from the drive shaft sprocket.

8. Turn out ten bolts of fastening of an oil crankcase of the engine in the order specified in drawing below, and remove a crankcase.

The order of unscrewing the crankcase bolts Nissan Qashqai

9. Clean the mating surfaces of the cylinder block and engine oil sump from the remnants of the old seal.

Cleaning an old Nissan Qashqai seal

10. Rotate the crankshaft so that the piston to be removed is at bottom dead center (BDC).

Piston at bottom dead center Nissan Qashqai

11. Turn away two nuts of fastening of a cover of a rod.

Connecting rod cap nuts Nissan Qashqai

12. Remove the connecting rod cover. If the dismantling of the cover is difficult, first remove it with light blows of a hammer. The cylinder number is stamped on the side of the cover.

Removing the connecting rod cap Nissan Qashqai

Warning:

The caps are machined complete with the connecting rod, so they are not interchangeable. Don't underestimate them in any way.

13. Push the connecting rod with a hammer handle into the cylinder and carefully remove the piston with the connecting rod from the cylinder. Make sure that the lower head of the connecting rod does not touch the mirror of the cylinder, otherwise the mirror may be damaged.
Remove the rest of the pistons in the same way.

Pushing the connecting rod with the Nissan Qashqai hammer handle

Note:

On the side surfaces of the lower heads of the connecting rods and their covers, the numbers of the cylinders in which they are installed are stamped. If you plan to remove the piston from the connecting rod, mark the piston with the cylinder number so as not to mix up the pistons during installation.

Cylinder number on connecting rod Nissan Qashqai

14. Take out loose leaves from a rod and its cover. If the liners remain on the crankshaft, remove them from the shaft. If it is not intended to replace the liners, mark them on the non-working surface with respect to the connecting rods and covers when removing them.

Connecting rod bearing and cover Nissan Qashqai

15. If replacement is necessary, remove the piston rings with a special puller. If it is not there, remove the rings from the piston, carefully spreading their locks.

Piston rings Nissan Qashqai

Warning:

Do not spread the piston ring locks more than is required to remove them. Otherwise, a violation of the geometry or even breakage of the rings is possible.

16. If it is necessary to replace the piston or connecting rod, squeeze the retaining rings holding the piston pin with a puller.

Nissan Qashqai Piston Pin Retaining Rings

17. Remove the rings from the mounting sockets.

Removing the ring from the Nissan Qashqai socket

18. Heat the piston to 60-70 ° C, press the piston pin out of the piston and the upper head of the connecting rod using a mandrel with a diameter of about 17 mm.

Pressing out the piston pin Nissan Qashqai

19. Remove the piston from the connecting rod.

Removing the piston from the connecting rod Nissan Qashqai

Note:

If the piston is to be removed from the connecting rod, mark the piston with the cylinder number so as not to mix up the pistons during installation.

Piston marking with cylinder number Nissan Qashqai

20. Turn out bolts of fastening of covers of radical bearings.

21. Remove the crankshaft from the beds of the crankshaft main bearings.

Removing the crankshaft Nissan Qashqai

22. Remove the main bearing shells from the beds of the cylinder block.

Main bearing shell Nissan Qashqai

23. Remove the thrust semi-rings of the crankshaft from the end surfaces of the middle shaft bearing in the cylinder block.

Crankshaft Thrust Ring Nissan Qashqai

24. Remove loose leaves from covers of radical bearings. If the liners remain on the crankshaft, remove them from the shaft. If the liners are not to be replaced, mark them on the non-working surface relative to the covers when removing them.

Crankshaft bushing Nissan Qashqai