For 1990-2009 cars

#### Special Tools

K-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.

Note: Handle the camshafts 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.

Note: 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

Note: Handle the camshafts 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.

Caution: Refer to Fastener Caution in the Preface section.

5. Tighten the camshaft bearing cap bolts gradually in the sequence shown for each camshaft caps. Tighten the 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 the bolt to 50 N·m (37 lb ft) plus 60 degrees and 15 degrees using KM-470-B angular torque gage .
9. Install the exhaust camshaft gear.
10. While holding the exhaust camshaft firmly in place, install a new exhaust camshaft gear bolt. Tighten the bolt to 50 N·m (37 lb ft) plus 60 degrees and 15 degrees using KM-470-B gage .
11. Install the timing belt. Refer to Timing Belt Replacement.
12. Install the cylinder head cover gasket and cylinder head cover. Tighten the 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 and tighten the nuts and bolts to 8 N·m (71 lb in).