Adjusting Timing of Cylinder Bank 4-6 - Engine Installed

Adjusting timing at cylinder bank 4 - 6





1. Position special tool, adjustment device 9612/9, on the cylinder head or the camshaft bores.





2. If the special tool cannot be inserted in the bores, allocate the camshafts accordingly and turn the exhaust camshafts with an open- ended wrench (wrench size 24) until the adjustment device can be inserted with ease. Fasten adjustment device with a hexagon-head bolt M8 x 30.
3. Fasten four hexagon-head bolts (M6 x 15) on the chain sprocket.
4. Take special tool, adjustment device 9612/9, off the cylinder head.
5. Fasten special tool, holding-down device 9634, on the cylinder head using a hexagon-head bolt M8 x 30.





Note: Only remove holding-down device 9634 when the cylinder head cover has been fitted.

6. Remove holding-down device (special tool 9611) from the camshaft bearing saddles.





7. Prepare cylinder head cover for installation: Clean sealing surface of the cylinder head and cylinder head cover very carefully. Apply a silicone bead to the cylinder head cover.
8. Carefully place the cylinder head cover in the correct position so that the sealing bead is not damaged. Screw two studs or centering pins into the corners of the cylinder head as centering aids. Tightening torque 13 Nm (10.0 ft. lbs.) Observe tightening sequence.
9. Remove holding-down device 9634.
10. Immediately remove silicone material emerging in the area of the camshaft closure cap.





11. Fit oil extraction pump. Align oil extraction pump driver and fit oil extraction pump in the correct position. The arrow for the direction of rotation or the marking "4 - 6" must face the crankcase.
12. Fit camshaft closure caps (6 ea.) dry.
13. Take off auxiliary chain tensioner, fit original chain tensioner with new sealing ring. Tightening torque: 80 Nm (59 ft. lbs.)





Allocation of chain tensioners

14. Pull fixing pin off belt pulley.
15. Fill in engine oil.





16. Fit exhaust manifold with new gaskets. Fit the gasket in the correct position between the exhaust manifold and cylinder head. The bent-up sheetmetal tab must point upward toward the cylinder head. Tightening torque 25 Nm (18 ft. lbs.)
17. Fit air-conditioning compressor
18. Fit Pentosin reservoir and fill with fluid.





19. Fit drive belt.
20. Fit air cleaner assembly.
21. Mount rear wheels.
Tightening torque 130 Nm (96 ft. lbs.).