Repair Procedures: Inspection: Camshaft

1. Measure the height of the cam.

   Check the surface of the cam lob for wear and tear. If necessary, replace the camshaft.

   Cam height 

   Intake: 37.33 mm (1.4697 in.)

   Exhaust: 37.44 mm (1.474 in.)

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2. Inspect the camshaft journal clearance.
   1. Clean the camshaft journals and bearing caps.
   2. Place the camshafts on the cam carrier.
   3. Lay a strip of plastic gauge across each of the camshaft journals.

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   4. Install the camshaft front bearing cap (A) and camshaft bearing caps (B).

      Tightening torque: 

      18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

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      1. Install the cam carrier mounting bolts (A).

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      2. Install the camshaft front bearing cap and camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

         Fig 1: Camshaft Bearing Caps Bolts (Tightening Sequence)

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      3. Install the camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

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      4. Install the camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         4.9 - 6.9 N.m (0.5 - 0.7 kgf.m, 3.6 - 5.1 lb-ft)

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      5. Install the camshaft front bearing cap and camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft)

         Fig 2: Camshaft Bearing Caps Bolts (Tightening Sequence)

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      6. Install the camshaft front bearing cap and camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         18.6 - 22.6 N.m (1.9 - 2.3 kgf.m, 13.7 - 16.6 lb-ft)

         Fig 3: Camshaft Bearing Caps Bolts (Tightening Sequence)

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      7. Install the camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

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      8. Install the camshaft bearing cap installing bolt with direction from back of engine to the front of engine according to the procedure at down below.

         Tightening torque: 

         11.8 - 13.7 N.m (1.2 - 1.4 kgf.m, 8.7 - 10.1 lb-ft)

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   5. Remove the camshaft bearing caps.
   6. Measure the plastic gauge at the widest point.

      If the oil clearance is greater than the specification, replace the camshaft.

      If necessary, replace the bearing caps and cam carrier.

   7. Remove the plastic gauge.
   8. Remove the camshafts.
3. Inspect the camshaft end play.
   1. Install the camshafts.
   2. Measure the end play while moving the camshaft back and forth using a dial gauge.

      Camshaft end play 

      Standard value: 0.10 - 0.19 mm (0.0039 - 0.0075 in.)

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If the end play is greater than the specification, replace the camshaft. If necessary, replace the cylinder head.