Tools Required
KM-470-B
Angular Torque Gage
Removal Procedure
- Remove the engine beautification cover.
- Remove the timing belt. Refer to
Timing Belt Replacement
.
- Disconnect the breather hose and PCV hose from the cylinder head cover.
- Disconnect the ignition wires from the spark plugs.
- Remove the camshaft cover. Refer to
Camshaft Cover Replacement
.
Important: Handle the camsafts carefully to prevent nicks or scratches.
- While holding the intake camshaft firmly in place, remove the intake camshaft gear bolt.
- Remove the intake camshaft gear.
- While holding the exhaust camshaft firmly in place, remove the exhaust camshaft gear bolt.
- Remove the exhaust camshaft gear.
- Loosen the camshaft bearing cap bolts in stages of one-half to one turn.
- Remove the camshaft bearing cap bolts from the cylinder head.
- Remove the camshafts.
- Remove the seal ring from the camshafts.
Important: The camshaft must be detached evenly from the bearing seats in the front guide bearing.
- 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.
- Lubricate the camshaft journals and the camshaft caps with engine oil.
- Install the intake and exhaust camshafts.
- Install the intake and exhaust camshaft bearing caps in their original positions.
- Install the intake and exhaust camshaft bearing cap bolts.
Notice: Refer to Fastener Notice in the Preface section.
- 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).
- Measure the intake and exhaust camshaft end play. Refer to
Engine Mechanical Specifications
.
- Install the intake camshaft gear.
- 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
.
- Install the exhaust camshaft gear.
- 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
.
- Install the timing belt. Refer to
Timing Belt Replacement
.
- Install the cylinder head cover gasket and cylinder head cover.
Tighten
Tighten the cylinder head cover bolts to 8 N·m (71 lb in).
- Connect the ignition wires to the spark plugs.
- Connect the breather hose and PCV hose to the cylinder head cover.
- Install the engine beautification cover.
Tighten
Tighten the engine beautification cover bolts and nuts to 8 N·m (71 lb in).