Camshaft Bearing

INSTALL CAMSHAFTS

NOTICE: Since the thrust clearance of the camshaft is small, the camshaft must be kept level while it is being installed. If the camshaft is not kept level, the portion of the cylinder head receiving the shaft thrust may crack or be damaged, causing the camshaft to seize or break. To avoid this, these steps should be carried out.

a. Install the intake camshaft of the RH cylinder head.
1) Apply new engine oil to the thrust portion and journal of the camshaft.





2) Place the intake camshaft at 90° angle of timing mark (2 dot marks) on the cylinder head.





3) Apply MP grease to a new oil seal lip.
4) Install the oil seal to the camshaft.
5) Remove any old packing (FIPG) material.





6) Apply seal packing to the No.1 bearing cap as shown in the illustration.
Seal packing: Part No. 08826-00080 or equivalent





7) Install the 5 bearing caps in their proper locations.
8) Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts.





9) Install and uniformly tighten the 10 bearing cap bolts, in several passes, in the sequence shown.
Torque: 16 Nm (160 kgf-cm, 12 ft. lbs.)
b. Install the exhaust camshaft of the RH cylinder head.
1) Apply new engine oil to the thrust portion and journal of the camshaft.





2) Align the timing marks (2 dot marks) of the camshaft drive and driven gears.
3) Place the exhaust camshaft on the cylinder head.





4) Install the 4 bearing caps in their proper locations.





5) Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts.
6) Install and uniformly tighten the 8 bearing cap bolts, in several passes, in the sequence shown.
Torque: 16 Nm (160 kgf-cm, 12 ft. lbs.)
7) Remove the service bolt.
c. Install the intake camshaft of the LH cylinder head.
1) Apply new engine oil to the thrust portion and journal of the camshaft.





2) Place the intake camshaft at 90° angle of timing mark (1 dot mark) on the cylinder head.





3) Apply MP grease to a new oil seal lip.
4) Install the oil seal to the camshaft.
5) Remove any old packing (FIPG) material.





6) Apply seal packing to the No.1 bearing cap as shown in the illustration.
Seal packing: Part No. 08826-00080 or equivalent





7) Install the 5 bearing caps in their proper locations.
8) Apply a light coat of engine oil on the threads and under the heads of the bearing cap bolts.





9) Install and uniformly tighten the 10 bearing cap bolts, in several passes, in the sequence shown.
Torque: 16 Nm (160 kgf-cm, 12 ft. lbs.)
d. Install the exhaust camshaft of the LH cylinder head.
1) Apply new engine oil to the thrust portion and journal of the camshaft.





2) Align the timing marks (1 dot mark) of the camshaft drive and driven gears.
3) Place the exhaust camshaft on the cylinder head.





4) Install the 4 bearing caps in their proper locations.
5) Apply a light coat of engine oil on the threads and under the heads of bearing cap bolts.





6) Install and uniformly tighten the 8 bearing cap bolts, in several passes, in the sequence shown.
Torque: 16 Nm (160 kgf-cm, 12 ft. lbs.)
7) Remove the service bolt.