Honda Accord/Civic/Prelude 1973-1983 Repair Guide

Timing Belt and Tensioner



See Figures 1, 2, 3 and 4

All Engines
  1. Disconnect the negative battery cable. Turn the crankshaft pulley until it is at Top Dead Center.
  3. Remove the pulley belt, water pump pulley, crankshaft pulley, and timing gear cover. Mark the direction of timing belt rotation.

Click image to see an enlarged view

Fig. Fig. 1: On the 1980-83 Civic and the 1983 Accord, when the No. 1 piston is set at TDC, the cut-away in the pulley is at the top and the groove on the pulley is aligned with top of the cylinder head

Click image to see an enlarged view

Fig. Fig. 2: Removing the upper timing case cover

Click image to see an enlarged view

Fig. Fig. 3: View of the camshaft gear and timing belt assembly

Click image to see an enlarged view

Fig. Fig. 4: View of the crankshaft gear and key

  1. Loosen, but do not remove, the tensioner adjusting bolt and pivot bolt.
  3. Slide the timing belt off of the camshaft timing gear and the crankshaft pulley gear and remove it from the engine.
  5. To remove the camshaft timing gear pulley, first remove the center bolt and then remove the pulley with a pulley remover or a brass hammer. This can be accomplished by simply removing the timing belt upper cover, loosening the tensioner bolts, and sliding the timing belt off of the gear to expose the gear for removal.

If you remove the timing gear with the timing belt cover in place, be sure not to let the woodruff key fall when removing the gear from the camshaft.

Inspect the timing belt. Replace if over 10,000 miles old, if oil soaked (find source of oil leak also), or if worn on leading edges of belt teeth.

To install:
  1. Reverse the removal procedure. Be sure to install the crankshaft pulley and the camshaft timing gear pulley in the top dead center position. (See Cylinder Head Removal for further details). On the non-CVCC engine, align the marks on the camshaft timing gear so they are parallel with the top of the cylinder head and the woodruff key is facing up.

When installing the timing belt, do not allow oil to come in contact with the belt. Oil will cause the rubber to swell. Be careful not to bend or twist the belt unnecessarily, since it is made of fiberglass; nor should you use tools having sharp edges when installing or removing the belt. Be sure to install the belt with the arrow facing in the same direction it was facing during removal.

  1. After installing the belt, adjust the belt tension by first rotating the crankshaft counterclockwise 1 / 4 turn. Then, retighten the adjusting bolt and finally the tensioner pivot bolt.

Do not remove the adjusting or pivot bolts, only loosen them. When adjusting, do not use any force other than the adjuster spring. If the belt is too tight, it will result in a shortened belt life.