30 SPECIFICATIONS Bearing caps 1 to 6 are attached with one bolt on the engine right side and two bolts on the engine left side, while bearing cap 7 is attached with only one bolt per side. Tighten the bolts in the following steps as illustrated: Note: Tighten the bolts in numerical order from bearing cap 1 to 7 or 7 to 1, except in step 2. Step 1: With camshaft and bearing caps in place, tighten the marked bolts of bearing caps 1 to 7..........................................25 ± 3 Nm (19 ± 2 ft-lb) Step 2: With rocker shaft in place, tighten the marked bolts (in stages) in the order 4, 3, 5, 2, 6, 1, 7..............60 ± 5 Nm (44 ± 4 ft-lb) Note:
The bolts must be tightened in stages to ensure that the rocker arm shaft is seated without bending. Step 3: Angle tighten marked bolts of bearing caps 1 to 7......................90 ± 5 degrees Step 4: Tighten the marked bolts of bearing caps 1 to 6 ..........25 ± 3 Nm (19 ± 2 ft-lb) Step 5: Angle tighten the bolts of bearing caps 1 to 6...........................120 ± 5 degrees Step 6: Loosen the marked bolts of bearing caps 1 to 6. Step 7: Tighten the marked bolts of bearing caps 1 to 6 ..........25 ± 3 Nm (19 ± 2 ft-lb) Step 8:
Angle tighten the bolts of bearing caps 1 to 6 and the bolt of bearing cap 7 .............................................................................................................120 ± 5 degrees Note: When only the rocker arm has been loosened, step 1 and step 3 are not required. Volvo Engine Brake control valve............................................24 ± 4 Nm (18 ± 3 ft-lb)