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The manufacturer recommends replacement of the timing belt (and water pump inspection) under normal operating conditions for Civic and Civic del Sol models every 84 months (7 years) or 105,000 (168,000 km). If the vehicle is operated in high temperatures (above 110° F or 43° C) or very low temperatures (below -20° F or -29° C) the timing belt should be replaced every 60,000 miles (100,000 km).
If, however, the timing belt is inspected earlier or more frequently than suggested, and shows signs of wear or defects, the belt should be replaced at that time.
On interference engines, it is very important to replace the timing belt at the recommended intervals, otherwise expensive engine damage will likely result if the belt fails.
For manufacturer's recommended service intervals, refer to the maintenance interval chart located in this guide.
REMOVAL & INSTALLATIONFig. View of the timing belt cover
Fig. Loosen then timing belt tensioner using a ratchet and short socket
Fig. Matchmark the direction of rotation of the timing belt
Fig. Once loose, pull the belt off the camshaft pulley
- Disconnect the negative battery cable.
- Turn the crankshaft to align the timing belt matchmarks and set cylinder No. 1 to Top Dead Center (TDC) on the compression stroke. Once in this position, the engine must NOT be turned or disturbed.
- Remove all necessary components to gain access to the cylinder head and timing belt covers.
- Remove the cylinder head and timing belt covers.
- There are 2 belts in this system; the one running to the camshaft pulley is the timing belt. The other, shorter one drives the balance shafts and is referred to as the balancer belt or timing balancer belt. Lock the timing belt adjuster in position by installing one of the lower timing belt cover bolts to the adjuster arm.
- Loosen the timing belt and balancer shafts tensioner adjuster nut, but do not loosen the nut more than 1 turn. Push the tensioner for the balancer belt away from the belt to relieve the tension. Hold the tensioner and tighten the adjusting nut to hold the tensioner in place.
- Carefully remove the balancer belt. Do not crimp or bend the belt; protect it from contact with oil or coolant. Slide the belt off the pulleys.
- Remove the balancer belt drive sprocket from the crankshaft.
- Loosen the lockbolt installed to the timing belt adjuster and loosen the adjusting nut. Push the timing belt adjuster to remove the tension on the timing belt, then tighten the adjuster nut.
- Remove the timing belt. Do not crimp or bend the belt; protect it from contact with oil or coolant. Slide the belt off the pulleys.
- If defective, remove the belt tensioners by performing the following:
- Remove the springs from the balancer belt and the timing belt tensioners.
- Remove the adjusting nut.
- Remove the bolt from the balancer belt adjuster lever, then remove the lever and the tensioner pulley.
- Remove the lockbolt from the timing belt tensioner lever, then remove the tensioner pulley and lever from the engine.
- This is an excellent time to check or replace the water pump. Even if the timing belt is only being replaced as part of a good maintenance schedule, consider replacing the pump at the same time.
To install:
- If the water pump is to be replaced, install a new O-ring and make certain it is properly seated. Install the water pump and retaining bolts. Tighten the mounting bolts to 106 inch lbs. (12 Nm).
- If the tensioners were removed, perform the following to install them:
- Install the timing belt tensioner lever and tensioner pulley.
The tensioner lever must be properly positioned on its pivot pin located on the oil pump. Be sure that the timing belt lever and tensioner moves freely and does not bind.
- Install the lockbolt to the timing belt tensioner, do not tighten the lockbolt at this time.
- Install the balancer belt pulley and adjuster lever.
- Install the adjusting nut and the bolt to the balancer belt adjuster lever. Do not tighten the adjuster nut or bolt at this time.
Be sure that the balancer lever and tensioner moves freely and does not bind.
- Install the springs to the tensioners.
- Move the timing belt tensioner its full deflection and tighten the lockbolt.
- Move the balancer its full deflection and tighten the adjusting nut.
- The crankshaft timing pointer must be perfectly aligned with the white mark on the flywheel or flex-plate; the camshaft pulley must be aligned so that the word UP is at the top of the pulley and the marks on the edge of the pulley are aligned with the surfaces of the head.
- Install the timing belt over the pulleys and tensioners.
- Loosen the bolt used to lock the timing belt tensioner. Loosen, then tighten the timing belt adjusting nut.
- Turn the crankshaft counterclockwise until the cam pulley has moved 3 teeth; this creates tension on the timing belt. Loosen, then tighten the adjusting nut and tighten it to 33 ft. lbs. (45 Nm). Tighten the bolt used to lock the timing belt tensioner.
- Realign the timing belt marks, then install the balancer belt drive sprocket on the crankshaft.
- Align the front balancer pulley; the face of the front timing balancer pulley has a mark, which must be aligned with the notch on the oil pump body. This pulley is the one at 10 o'clock to the crank pulley when viewed from the pulley end.
- Align the rear timing balancer pulley (2 o'clock from the crank pulley) using a 6 x 100mm bolt or rod. Mark the bolt or rod at a point 2.9 in. (74mm) from the end. Remove the bolt from the maintenance hole on the side of the block; insert the bolt or rod into the hole. Align the 2.9 in. (74mm) mark with the face of the hole. This pin will hold the shaft in place during installation.
- Install the balancer belt. Once the belts are in place, be sure that all the engine alignment marks are still correct. If not, remove the belts, realign the engine and reinstall the belts. Once the belts are properly installed, slowly loosen the adjusting nut, allowing the tensioner to move against the belt. Remove the pin from the maintenance hole and reinstall the bolt and washer.
- Turn the crankshaft 1 full turn, then tighten the adjuster nut to 33 ft. lbs. (45 Nm). Remove the bolt used to lock the timing belt tensioner.
- Install the lower cover, ensuring the rubber seals are in place. Install a new seal around the adjusting nut, DO NOT loosen the adjusting nut.
- Install the key on the crankshaft and install the crankshaft pulley. Apply oil to the bolt threads and tighten it to 181 ft. lbs. (250 Nm).
- Install the upper timing belt cover and all applicable components. When installing the side engine mount, tighten the bolt and nut attaching the mount to the engine to 40 ft. lbs. (55 Nm) and the through-bolt and nut to 47 ft. lbs. (65 Nm).
- Connect the negative battery cable.
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