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Setting valve timing

Setting valve timing

Inspection gauge 83 95 337 will not fit the fuel distribution pump recess.


1. Zero the engine, see Valve timing, checking steps 1-20. The crankshaft must be secured with 83 95 352 Setting tool, crankshaft .

2. Note how the upper timing chain tensioner is fitted and then remove it.


3. Note how the lower timing chain tensioner is fitted and then remove it.

4. Remove the camshaft sprocket using an open spanner for support in the hexagonal recess on the camshaft.

5. Position the camshaft sprocket so that it runs easily on the camshaft and fit it with a new bolt. Tighten by hand.


6. Undo the four bolts for the fuel distribution pump chain drive.

Important

The centre nut must absolutely not be loosened.


7. Insert 83 95 337 Installation tool, fuel pump in the fuel distribution pump recess.

8. Replace the chain tensioner for the lower timing chain using a new gasket.

Tightening torque: 60 Nm (44 lbf ft).

9. Remove the inspection gauge from the fuel distribution pump and tighten the pinion bolts.

Tightening torque: 20 Nm (15 lbf ft).

10. Reposition 83 95 337 Setting tool, fuel pump in the fuel distribution pump recess.

11. Position 83 95 386 Setting tool, camshaft on the camshaft and cylinder head. The camshaft can be turned somewhat using an open spanner on the hexagonal recess while the gauge is being positioned correctly.


12. Fit the adapter for 83 95 394 Setting tool, timing chain onto the camshaft sprocket and fit the adjusting tool onto the cylinder head.

13. Fix the position for the adapter on the camshaft sprocket by lightly twisting it counter-clockwise with a ratchet handle. Tighten the adjustment screw on the tool.

Important

Inspection gauge 83 95 337 must be easy to remove and replace the entire time. If this is not the case, the tool adjustment screw can be loosened slightly.


14. Tighten the camshaft sprocket bolt.

Tightening torque: 90 Nm + 60°(66 lbf ft + 60°)

15. Replace the chain tensioner for the upper timing chain using a new gasket.

Tightening torque: 60 Nm (44 lbf ft).


16. Remove all tools and gauges.

17. Turn the crankshaft with the help of the belt pulley's central screw to just before the mark for top dead centre in cylinder 1. Make sure that both camshaft lobes for cylinder 1 are pointing up.

18. Insert 83 95 352 Setting tool, crankshaft into the hole for the crankshaft position sensor. Push the tool somewhat inward at the same time as the crankshaft is turned to the zero point. The tool will then go into a recess in the crankshaft and lock it.


19. Make sure the markings on the crankshaft pulley and the timing cover are in line. The arrow on the single timing chain pulley on the fuel distribution pump must also be in line with the recess in the pump.

20. Insert 83 95 337 Installation tool, fuel pump in the fuel distribution pump recess.

21. Position 83 95 386 Setting tool, camshaft on the camshaft and cylinder head.

22. Remove all inspection gauges.


Inspection gauge 83 95 386 will not fit in the camshaft recess.


1. Zero the engine, see Valve timing, checking steps 1-20. The crankshaft must be secured with 83 95 352 Setting tool, crankshaft .

2. Note how the upper timing chain tensioner is fitted and then remove it.


3. Remove the camshaft sprocket using an open spanner for support in the hexagonal recess on the camshaft.

4. Position the camshaft sprocket so that it runs easily on the camshaft and fit it with a new bolt. Tighten by hand.


5. Insert 83 95 337 Installation tool, fuel pump in the fuel distribution pump recess.

6. Position 83 95 386 Setting tool, camshaft on the camshaft and cylinder head. The camshaft can be turned somewhat using an open spanner on the hexagonal recess while the gauge is being positioned correctly.

7. Fit the adapter for 83 95 394 Setting tool, timing chain onto the camshaft sprocket and fit the adjusting tool onto the cylinder head.


8. Fix the position for the adapter on the camshaft sprocket by lightly twisting it counter-clockwise with a ratchet handle. Tighten the adjustment screw on the tool.

Important

Inspection gauge 83 95 337 must be easy to remove and replace the entire time. If this is not the case, the tool adjustment screw can be loosened slightly.


9. Tighten the camshaft sprocket bolt.

Tightening torque: 90 Nm + 60° (66 lbf ft + 60°)

10. Replace the chain tensioner for the upper timing chain using a new gasket.

Tightening torque: 60 Nm (44 lbf ft).

11. Remove all tools and gauges.

12. Turn the crankshaft with the help of the belt pulley's central screw to just before the mark for top dead centre in cylinder 1. Make sure that both camshaft lobes for cylinder 1 are pointing up.


13. Insert 83 95 352 Setting tool, crankshaft into the hole for the crankshaft position sensor. Push the tool somewhat inward at the same time as the crankshaft is turned to the zero point. The tool will then go into a recess in the crankshaft and lock it.

14. Make sure the markings on the crankshaft pulley and the timing cover are in line. The arrow on the single timing chain pulley on the fuel distribution pump must also be in line with the recess in the pump.

15. Insert 83 95 337 Installation tool, fuel pump in the fuel distribution pump recess.

16. Position 83 95 386 Setting tool, camshaft on the camshaft and cylinder head.

17. Remove all inspection gauges.