For 1990-2009 cars

#### Tools Required

KM-470-B Angular Torque Gage

### Removal Procedure

1. Remove the engine beautification cover.
2. Remove the timing belt. Refer to Timing Belt Replacement .
3. Disconnect the breather hose and PCV hose from the cylinder head cover.
4. Disconnect the ignition wires from the spark plugs.
5. Remove the camshaft cover. Refer to Camshaft Cover Replacement .

Important: Handle the camsafts carefully to prevent nicks or scratches.

6. While holding the intake camshaft firmly in place, remove the intake camshaft gear bolt.
7. Remove the intake camshaft gear.
8. While holding the exhaust camshaft firmly in place, remove the exhaust camshaft gear bolt.
9. Remove the exhaust camshaft gear.
10. Loosen the camshaft bearing cap bolts in stages of one-half to one turn.
11. Remove the camshaft bearing cap bolts from the cylinder head.
12. Remove the camshafts.
13. Remove the seal ring from the camshafts.

Important: The camshaft must be detached evenly from the bearing seats in the front guide bearing.

14. Check the camshaft and bearing seats for wear and replace them if necessary.

### Installation Procedure

Important: Handle the camsafts carefully to prevent nicks or scratches.

1. Lubricate the camshaft journals and the camshaft caps with engine oil.
2. Install the intake and exhaust camshafts.
3. Install the intake and exhaust camshaft bearing caps in their original positions.
4. Install the intake and exhaust camshaft bearing cap bolts.

Notice: Refer to Fastener Notice in the Preface section.

5. Tighten the camshaft bearing cap bolts gradually in the sequence shown for each camshaft caps.

Tighten
Tighten the camshaft bearing cap bolts to 8 N·m (71 lb in).

6. Measure the intake and exhaust camshaft end play. Refer to Engine Mechanical Specifications .
7. Install the intake camshaft gear.
8. While holding the intake camshaft firmly in place, install a new intake camshaft gear bolt.

Tighten
Tighten the intake camshaft gear bolt to 50 N·m (37 lb ft) plus 60 degrees and 15 degrees using KM-470-B .

9. Install the exhaust camshaft gear.
10. While holding the exhaust camshaft firmly in place, install a new exhaust camshaft gear bolt.

Tighten
Tighten the exhaust camshaft gear bolt to 50 N·m (37 lb ft) plus 60 degrees and 15 degrees using KM-470-B .

11. Install the timing belt. Refer to Timing Belt Replacement .
12. Install the cylinder head cover gasket and cylinder head cover.

Tighten
Tighten the cylinder head cover bolts to 8 N·m (71 lb in).

13. Connect the ignition wires to the spark plugs.
14. Connect the breather hose and PCV hose to the cylinder head cover.
15. Install the engine beautification cover.

Tighten
Tighten the engine beautification cover bolts and nuts to 8 N·m (71 lb in).