Fitting the Piston Ring

1. Fit the oil scraper ring.





Figure 30

2. Use a piston ring expander when fitting the rings on the piston.





Figure 31

3. The compression rings must be turned with the marking "TOP" upward.

4. Oil the piston and ring before fitting. Turn the compression rings so that the rings' openings are displaced 180° from each other and fit them directly in front of the gudgeon pin ends.

5. Oil in the piston rings, bearings and cylinder.

6. Fit the pistons using Piston fitting tool 83 95 113. The pistons must be fitted with the arrow pointing toward the timing chain.





Figure 32

7. Raise the car.

8. Fit the bearing caps with bearing shells. The outer bevelling of the connecting rod and bearing cap must butt up against each other.





Figure 33

Tightening torque 25 Nm + 100° (18 lbf ft + 100°)





Figure 34

9. Clean the engine block and oil sump sealing surfaces. Remove any contaminants in the oil sump.

10. Lay a 2 mm thick line of 83 95 691 Flange sealant on the oil sump sealing surface and on the connection to the oil strainer suction pipe.

11. Fit the oil sump carefully so that the sealing compound is not scraped away.

Tightening torque, oil sump 22 Nm (16 lbf ft)

(11a) Tightening torque, bolts to the gearbox 70 Nm (52 lbf ft)





Figure 35

12. Fit the torque arm front bolts to the oil sump and tighten the rear bolt.

Tightening torque, front bolts 37 Nm (27 lbf ft) Tightening torque, rear bolt 70 Nm + 90° (52 lbf ft + 90°)





Figure 36

13. Fit the A/C compressor lower retaining bolt.

Tightening torque 24 Nm (18 lbf ft)

14. Plug in the oil level sensor connector.

15. Lower the car.

16. Fit the dipstick pipe in the oil sump with a new 0-ring, greased with 30 06 665 Vaseline.

17. Position a jack with a wood block under the oil sump and relieve the right-hand engine pad. Detach the right-hand engine mounting





Figure 37