Repair Procedures: Inspection: Camshaft

Cam height 

Intake: 44.15 mm (1.738 in.)

Exhaust: 43.55 mm (1.715 in.)

Fig 1: Measuring Height Of Cam Lobe Using Micrometer

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1. Clean the camshaft journals and bearing caps.
2. Place the camshafts in the cylinder head.
3. Lay a strip of plastigauge across each of the camshaft journals.
   Fig 2: Laying Strip Of Plastigauge Across Each Of Camshaft Journals

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4. Install the bearing caps and tighten the bolts to the specified torque.

   Tightening torque 

   1st step

   M6 bolt: 5.9 N.m (0.6 kgf.m, 4.3 lb-ft)

   M8 bolt: 9.8 N.m (1.0 kgf.m, 7.2 lb-ft)

   2nd step

   M6 bolts:

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

   M8 bolts:

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

   NOTE: Do not turn the camshaft.
5. Remove the bearing caps.
6. Measure the plastigauge at the widest point. If the clearance is greater than the specification, replace the camshaft. If necessary, replace the bearing caps and the cylinder head as a set.

   Camshaft bearing cap oil clearance 

   Standard:

   0.027 ~ 0.058 mm (0.0011 ~ 0.0023 in.)

   Limit: 0.1 mm (0.0039 in.)

   Fig 3: Measuring Plastigauge At Widest Point

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1. Inspect the camshaft end play.
2. Measure the end play while moving the camshaft back and forth using a dial gauge. If the end play is greater than the specification, replace the camshaft. If necessary, replace the bearing caps and the cylinder head as a set.

   Camshaft end play 

   Standard: 0.1 ~ 0.2 mm (0.0039 ~ 0.0079 in.)

   Fig 4: Inspecting Camshaft End Play

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3. Remove the camshafts.