Removing
1. Remove the camshaft covers.
2. Remove the ignition coil of the 1st cylinder.
3. Screw the dial gauge adapter -T10170- into the spark plug hole as far as it will go, as shown in the figure below.
4. Install dial gauge (A) with extension -T10170/1- up to the stop, tighten with clamping nut (arrow), as shown in the figure below.
5. Turn the crankshaft in the direction of rotation of the engine shaft until the piston of the 1st cylinder is at TDC. Mark the position on the deviation indicator with a small arrow.
Note.
- holes (arrows) in the camshafts must be in the position shown in the figure. Turn the crankshaft one turn if necessary (360°).
- If the crankshaft turns more than 0.01 mm past TDC, turn the crankshaft back by about 45°. Then turn it in the direction of rotation of the engine shaft to the TDC position of the 1st cylinder.
- Permissible deviation from TDC of the piston of the 1st cylinder:±0.01 mm.
6. Insert camshaft locking tool -T10171- or -T10171A- into the holes in the camshafts as far as it will go. Stop mandrels (arrows 1) should go into the holes (arrows 2), as shown in the figure below. Need an inscription "TOR"-arrow 3- could be read from above.
7. To fix the locking tool for camshafts -T10171- or -T10171A-, screw in the M6 screw by hand (arrow), shown in the figure below; without tightening it further.
8. Remove the timing chain housing.
9. Remove cover (1) from the oil pump chain sprocket as shown in the figure below.
10. Press the tensioning bar in the direction of the arrow by hand and use the locking pin -T40011- to lock the plunger of the chain tensioner.
11. Remove chain tensioner (2), shown in the figure below.
12. With a suitable felt-tip pen, mark the direction of movement of the camshaft drive chain (3).
13. Unscrew the fastening bolts (2), remove the chain sprocket of the camshaft that drives the intake valves (1), with camshaft drive chain (3), as shown in the figure below. Use counterhold -T10172- for this.
14. Hold the oil pump chain sprocket with counterhold -T10172- and loosen the mounting bolt (1), shown in the figure below.
15. Lever movements of a screwdriver should release the tension spring (1) on the screw (2) and remove tension spring (1), as shown in the figure below.
16. Unscrew the fastening bolt (3), remove the oil pump drive chain tensioner.
17. Use a suitable felt-tip pen to mark the direction of movement of the oil pump drive chain (2).
18. Remove the chain sprocket bolt (1), remove chain sprockets (1) And (3) together with the oil pump drive chain (2), as shown in the figure below.
Installation
Note. The crankshaft must be in the TDC position of the piston of the 1st cylinder.
1. Install chain sprocket (1) in the direction of the arrow on the crankshaft journal as far as it will go, as shown in the figure below.
Attention. ledge (2) on the chain sprocket (1) must be in slot (3) crankshaft journals as shown in the figure below.
2. Mark with a felt-tip pen the position of the chain sprocket and crankshaft in relation to the cylinder block.
3. Install the oil pump drive chain (3) on the chain sprocket (1), as shown in the figure below.
4. Inserting the oil pump chain sprocket (2) oil pump drive chain (3), put it on the oil pump drive shaft
Note.
- Pay attention to the marked direction of rotation on the drive end of the oil pump.
- The oil pump chain sprocket can be mounted on the oil pump drive shaft (arrow) only in one single position.
5. Support oil pump chain sprocket with counterhold -T10172-.
6. Tighten the mounting bolt (1) with a tightening torque of 20 Nm + tighten an additional ¼ turn 90°), as shown in the figure below.
7. Install the chain tensioner on the oil pump drive chain, tighten the fixing screw (3) with the application of a torque of 15 Nm.
8. Using a screwdriver, install the tension spring (1) on the screw (2), as shown in the figure below.
Note.
- Pay attention to labeling (arrows).
- It is impossible for the crankshaft to turn.
9. Install and tighten by hand, preliminarily. camshaft drive chain sprocket bolt (3), as shown in the figure below.
10. Put on the camshaft drive chain (1) on the chain sprocket on the crankshaft (4), on the exhaust camshaft sprocket (3). and fasten the intake camshaft drive sprocket with a new mounting bolt (2), as shown in the figure below.
11. The camshaft drive chain must be in contact with the guide bar (1) and crankshaft chain sprocket (arrow), as shown in the figure below.
12. Install the chain tensioner (1), tighten the fixing screws (2) with the application of a torque of 9 Nm.
13. Tension the camshaft drive chain by removing the locking tool -T40011- from the tensioner housing.
14. Check the markings on the crankshaft chain sprocket and on the cylinder block: they must be opposite each other.
15. Tighten the mounting bolt (2) with torque application 40 Nm and bolt (4) — with application of torque 50 Nm (Do not use counter support -T10172-).
Note. After checking the installation of the valve timing, it is necessary to tighten the mounting bolts (2) And (4) at an angle of 90°.
16. Remove the screw (arrow), remove the camshaft locking tool -T10171- or -T10171A- from the camshaft housing as shown in the figure below.
17. Check the installation of the phases of the gas distribution mechanism.
18. Install the oil pump gear housing (1), shown in the figure below.
19. Install the timing chain housing.
20. Further installation is carried out in the reverse order of removal.