Repair Procedures: Inspection: Camshaft

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

Cam height 

Intake: 38.13 mm (1.501 in.)

Exhaust: 37.44 mm (1.474 in.)

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1. Clean the camshaft journals and bearing caps.
2. Place the camshafts on the cam carrier.
3. Lay a strip of plastigage across each of the camshaft journals.

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

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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: 

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

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

   Fig 1: Front Camshaft Bearing Caps Bolts (Tightening Sequence)

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5. Remove the camshaft bearing caps.
6. Measure the plastigage 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.

   Camshaft cap oil clearance 

   [Standard value]

   No. 1 journal: 0.045 - 0.076 mm (0.0018 - 0.0030 in.)

   No. 2, 3, 4 journal: 0.035 - 0.066 mm (0.0014 - 0.0026 in.)

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7. Remove the plastigage.
8. Remove the camshafts.

When checking the camshaft end play, remove the timing chain and the intake and exhaust CVVT.

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.