Genuine Volvo V50 Timing Belt

Volvo V50 Timing Belt Parts and Q&A

• Timing Belt
  30731727
  Q: How to remove and replace the timing belt and related components on Volvo V50?

  A:

  To remove the components, start by unconnecting the battery negative lead. Loosen the bolts of the right-hand front wheel, jack the front of the car up, and place it on axle stands before removing the right-hand front roadwheel. Retach the two nuts holding the inner wheel arch liner in place, remove the Torx screws and remove the liner. Use a trolley jack to support the engine underneath with a block of wood to avoid damage, and then lift out the coolant expansion tank without disconnecting the hoses. Mark the position of the right-hand engine mounting in relation to the inner wing, undo the bolts and remove the mounting assembly. Undo the Torx screws and release the clips and remove the timing belt covers. Remove the main auxiliary drivebelt and fit the timing belt inner upper cover temporarily. Rotate the crankshaft clockwise until the timing marks on the camshaft sprocket rims register with the notches on the timing belt upper cover so that the timing mark on the crankshaft sprocket flange registers with the cast projection on the oil pump housing. The timing marks may not be easy to see and it may take several attempts to be able to see them properly. Remove the crankshaft pulley, which is held by 4 bolts and a large central nut, using a home-made sprocket holding tool to help you remove the central nut. After making sure the timing belt sprockets are aligned, take the pulley and top timing belt cover off. For models up to model year 2006, insert a 6 mm Allen key in the timing belt tensioner arm hole, loosen the timing belt tensioner retaining bolt and rotate the tensioner assembly clockwise to eliminate tension on the belt. If a new belt is being fitted, take the tensioner off completely. For models from the 2006 model year, simply remove the tensioner retaining bolt to release tension and remove the old tensioner. If reusing the belt, mark the running direction of the belt, then slip it off the sprockets and idler pulleys, being careful not to rotate the crankshaft or camshafts. Check the timing belt for signs of wear or splitting and renew it if required. If the engine has traveled more than 36,000 miles with the existing belt, replacing it regardless of condition. Inspect the coolant pump for leaks, and consider renewing the coolant pump if it is the original pump. Before refitting the timing belt, make sure the sprockets are properly positioned and then install the new belt tensioner and idler pulley and tighten the bolts to the specified torque. Slip the belt over the crankshaft sprocket and other components making sure it is taut and the camshaft sprockets are not rotating. Recheck the alignment of the sprocket marks, set the tensioner and check the movement of the pointer of the tensioner. Temporarily reinsert the crankshaft pulley nut, revolve the crankshaft two full revolutions and check the timing marks for alignment. Finally, refit the crankshaft pulley, tighten the central nut and outer bolts, tighten the wheel arch liner, refit the roadwheel, lower the car, and tighten the wheel bolts in a diagonal sequence, refit all other components removed for access.