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Camshaft drive, to fit

Camshaft drive, to fit


1. Install the camshaft belt using the markings on the belt and the indicated rotation direction. Use the 83 95 006 Assembly kit for camshaft sprockets and and camshaft drive belt, V6 KM-800-30 to hold the belt in place. Fit the lower tensioning pulley loosely. Make sure that the washer is in place. Adjust the tensioning pulley by hand so the belt does not disengage. Adjust anti-clockwise and check to see that the markings on the camshaft belt match the corresponding markings on the camshaft drive and the crankshaft. Disengage the tool KM-800-30.


Fit locking tool KM-800-10, position a piece of camshaft belt and fit part no. 83 93 985 to measure the belt tension.

Tighten the centre bolts of the adjuster rollers lightly. Adjust the lower adjuster roller anticlockwise until a tension of 275-300 Nm is obtained. Use tool 83 94 983. Tighten the adjuster roller's bolt. Use tool 83 94 983 as a counterstay. Check the belt tension again and adjust as necessary.

Tightening torque: 40 Nm (30 lbf ft)

Remove the belt-tension meter and piece of the toothed belt.

Important

Adjustment of belt tension is only a preparatory measure and must not be used as a check when the belt is finally adjusted.


2. Ensure the adjusting nut on the upper adjusting roller rotates freely and is not tight. Adjust the tensioning pulley with a 5 mm Allen key until the two lines on the tensioning pulley correspond with each other. Tighten.


Tightening torque: 20 Nm (15 lbf ft)

Remove the locking tool for camshaft sprockets 1 and 2. Fit tool KM-800-20. Then, adjust the upper adjusting roller anticlockwise with tool 83 94 983 until the markings on the camshaft sprocket are aligned with the corresponding markings on KM-800-20. Tighten. Use tool 83 94 983 as a counterstay.

Tightening torque: 40 Nm (30 lbf ft)

Remove KM-800-20 and the other locking tools.

3. Rotate the engine two revolutions in the direction of rotation until just before the zero mark and fit locking tool KM-800-10 on the crankshaft. Carefully rotate the crankshaft in the direction of rotation of the engine until the arm is lying against the coolant pump and tighten it. Fit tool KM-800-20 and ensure the markings on the camshaft sprocket are opposite the markings on the tool and that the edge of the belt is aligned with the edge of the sprocket.

Important

Check that marking A is about 2 mm above marking B. If this distance is smaller, adjustment must be carried out afresh.


4. Fit the crankshaft pulley.


Tightening torque: 20 Nm (15 lbf ft)

5. Fit the timing cover.

Tightening torque: 8 Nm (6 lbf ft)

6. Fit the belt tensioner and the generator air intake.

7. Fit the coolant pump pulley and the power steering pump pulley. Use Loctite, part No. 74 96 292. Do not tighten the bolts.

8. Fit the multigroove belt.

9. Tighten the retaining bolts on the pulleys.

Tightening torque:

Belt pulley/coolant pump: 8 Nm (6 lbf ft)

Belt pulley/power steering pump: 20 Nm (15 lbf ft)

10. Fit the right-hand engine attachment with bracket and engine mount.


Tightening torque:

To body 63 Nm (46.5 lbf ft)

11. Fit the power steering hose in the holder

12. Fit the mass air flow sensor with hose.

13. Raise the car.

14. Lower the engine by carefully removing the wedges.


15. Fit the lower spoiler sections.


16. Lower the car and remove the wing protectors.