Changes

2. Fit the perforated disc, place the crankshaft in position and fit the two thrust washers at the main bearing between cylinders No. 2 and No. 3. Fit the washers with their embossed side towards the main bearing so that the bearing surface is the right way round.

3. Lubricate and fit the main bearing caps in their correct positions, making sure that they are the right way round.

4. Rotate the compression rings so that their gaps are displaced 120 degrees from each other and in line with the gudgeon pin bosses. Also make sure that the gaps in the three-part scraper ring are staggered and not in line with each other.

5. Fit protective collars on the connecting rod studs. Lubricate the pistons and rings and fit the pistons in their cylinders. Ensure that the arrow marked on the piston crown faces the timing end of the engine. Use piston installing tool and gently tap the pistons down into the cylinders.

7. Apply a bead of Loctite flange sealant about 1 mm thick on the mating surface of the end plate and fit the end plate. Mind the gasket.

8. Fit the flywheel or driver disc but do not tighten it. Use thread locking compound on the bolts. Use flywheel locking segment (SAAB tool No. 83 94 868) and tighten the bolts.

'''Tightening torque 80 Nm (59.2 lbf ft) and 95 Nm (70.3 lbf ft).'''

10. Lubricate the bearing surfaces on the balance shafts and in the bearing housings and insert the balance shafts into their respective tunnels, taking the utmost care to avoid damaging the bearing shells inside.

Important: The shaft with the smaller thrust ring marked INL is the one for the inlet side of the engine. The shaft with the larger thrust ring marked EXH is the one for the exhaust side of the engine.

12. First fit the fixed chain guide, which is common to the timing chain and balance-shaft chain, and then the pivoted chain guides for the timing and balance-shaft chains.

13. Fit the balance-shaft sprocket and the oil-pump driver onto the crankshaft end.

14. Cock the chain tensioner and insert a paper clip or the like through the hole in the cylinder to prevent triggering of the tensioner. Before this, make sure that the plunger is turned to the position where it really is pressed out by the spring.

15. Fit the chain tensioner.

16. Inspect the balance-shaft chain and fit it and the idler sprocket so that the setting marks behind the balance-shaft sprocket and on the bearing housing are in line with each other. Tauten the chain between the crankshaft and balance shafts. Fit the idler sprocket last. Hold the bolt in place with your thumb, mesh the teeth of the sprocket with the chain and roll the sprocket along the chain into position.

17. Fit the top chain guide, pull the chain slightly away from the cylinder block and trigger the tensioner. Press the tensioner inwards to check that there is a certain amount of play. Rotate the crankshaft one revolution and then check that the chain is set up correctly.

18. Make sure the mating face on the timing cover is completely clean. Apply a bead of flange sealant approx. 1 mm thick on the timing cover. Apply the bead in the centre of the sealing surfaces.

19. Fit the timing cover.

21. Fit the oil pump pressure pipe and check that there are no impurities or other foreign matter in the sump.

22. Make sure the mating surface on the oil sump is completely clean and apply an even coat of flange sealant to it. Invert the engine and fit the oil sump.

23. Invert the engine in the stand, rotate the crankshaft through 45 degrees and fit the cylinder head, using a new gasket. Check that it is correctly seated in the locating sockets and that the chain is not trapped.

Tighten the cylinder head bolts in three stages:

24. Fit the two bolts between the timing cover and the cylinder head.

'''Tightening torque: 22 Nm (16 lbf ft).'''

27. Prepare the chain tensioner for fitting by pressing down the catch and pushing in the chain tensioner.

28. Fit the chain tensioner, using a 27 mm socket.

32. Clean the flanges of the camshaft cover, using benzine.

33. Apply soap to the open end of the camshaft cover and fit the cover, starting at the open end. Then tighten the bolt located furthest to the front at the timing end. Then continue all the way round, on both the inside and outside.

36. Fit flywheel locking segment and tighten the crankshaft pulley.

'''Tightening torque 175 Nm (129.5 lbf ft).'''

37. Fit the exhaust manifold and fit a new gasket. If the exhaust manifold is of two-piece type, fit the outer section before the inner section. Check that the contact surfaces for the front pipe are level with each other. Note that spacer sleeves are fitted on the outer studs only.

'''Tightening torque: 25 Nm (18.5 lbf ft).'''

40. Fit the turbocharger.

'''Tightening torque: 22 Nm (16 lbf ft).'''

45. Align the intake manifold gasket and fit the intake manifold.

'''Tightening torque: 22 Nm (16 lbf ft).'''

48. Remove the tool and check that the torque converter bottoms in the transmission and that the locking screw is fitted (automatic transmission). Introduce the transmission into place and tighten the bolts.

49. Fit the torque converter (automatic transmission) retaining bolts. Use thread locking compound on the bolts.

50. Fit a lifting sling to the engine and lift it off the stand. Remove the fixture and lower the engine onto a trolley.

51. Fit the bearing bracket with tube and inner drive-shaft joint. Refit the alternator, reconnect the leads and fit the belt tensioner.

52. Fit the starter motor and connect the cables. Check that the oil plug is properly tightened. The engine is now ready for fitting in the car.