Volvo B5244S4 timing belt replacement
1. Remove accessory drive belt.
2. Remove right engine mount.
3. Remove timing belt cover(s).
The top cover is held on by two Torx screws on the top of the engine. For B5244S4 engine you will need to remove the inlet manifold to access these.
The lower cover is held on by one Torx screw on the side of the engine.
Torque: M6, 10 Nm
4. Align the crankshaft and camshaft.
Temporarily refit the top timing belt cover as the camshaft alignment marks are on this cover.
Rotate the crankshaft clockwise until the crankshaft and camshaft timing marks align.
5. Remove the vibration damper/crank pulley.
Special tool 9995433 can be screwed to the crankshaft to hold the vibration damper/crank pulley. A home-made tool is also possible to make.
Alternately, some people have found they can remove and install the timing belt without removing the pulley. In this case, the plastic cover around the pulley needs to be removed.
Torque: 180 Nm
6. Remove the timing belt tensioner.
Models up to MY2006: Insert a 6 mm Allen key into the hole in the tensioner arm, then loosen the tensioner retaining bolt, and rotate the tensioner assembly clockwise to around the 10 o'clock position to relieve tension. Remove the tensioner.
Models from MY2006: Undo the tensioner retaining bolt to relieve tension and remove the tensioner.
7. Remove the timing belt.
8. Ensure the camshaft and crankshaft are in the correct positions.
9. FIt the new pulley.
10. Fit the new timing belt tensioner.
Models up to MY2006: With the tensioner arm at around the 10 o'clock position, lightly tighten the retaining belt. Fit the new timing belt. Using a 6 mm Allen key, turn the belt tensioner anti-clockwise until its pointer reaches the right of the central notch, then turn it back to align with the central notch. Hold the tensioner in this position and tighten the retaining bolt.
Models from MY2006: Fit the new tensioner and tighten the retaining bolt. Rotate the tensioner anti-clockwise until a locking pin can be inserted through the holes in the arm and backplate once they are aligned. Fit the new timing belt. Pull out the tensioner locking pin.
Torque: M8, 24 Nm