Inspection After Removal

Camshaft Runout 

1. Put V-block on precise flat table, and support No. 2 and 4 journal of camshaft.

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   CAUTION: Do not support journal No. 1 (on the side of camshaft sprocket) because it has a different diameter from the other three locations.
2. Set dial indicator vertically to No. 3 journal.
3. Turn camshaft to one direction with hands, and measure the camshaft runout on dial indicator. (Total indicator reading)

   Standard	: Less than 0.02 mm (0.0008 in)
   Limit	: 0.05 mm (0.0020 in)

4. If it exceeds the limit, replace camshaft.

Camshaft Cam Height 

1. Measure the camshaft cam height with micrometer.

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   Standard:
   Intake		: 45.465 - 45.655 mm (1.7900 - 1.7974 in)
   Exhaust		: 45.075 - 45.265 mm (1.7746 - 1.7821 in)
   Limit:
   Intake		: 45.265 mm (1.7821 in)
   Exhaust		: 44.875 mm (1.7667 in)

2. If wear exceeds the limit, replace camshaft.

Camshaft Journal Oil Clearance 

CAMSHAFT JOURNAL DIAMETER 

• Measure the outer diameter of camshaft journal with micrometer.

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  Standard:
  No. 1		: 25.935 - 25.955 mm (1.0211 - 1.0218 in)
  No. 2, 3, 4		: 23.445 - 23.465 mm (0.9230 - 0.9238 in)

CAMSHAFT BRACKET INNER DIAMETER 

• Tighten camshaft bracket bolt with the specified torque.
• Measure the inner diameter (A) of camshaft bracket with bore gauge.

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  Standard:
  No. 1		: 26.000 - 26.021 mm (1.0236 - 1.0244 in)
  No. 2, 3, 4		: 23.500 - 23.521 mm (0.9252 - 0.9260 in)

CAMSHAFT JOURNAL OIL CLEARANCE 

• (Oil clearance) = (Camshaft bracket inner diameter) - (Camshaft journal diameter).

  Standard:
  No. 1		: 0.045 - 0.086 mm (0.0018 - 0.0034 in)
  No. 2, 3, 4		: 0.035 - 0.076 mm (0.0014 - 0.0030 in)
  Limit		: 0.15 mm (0.0059 in)

• If the calculated value exceeds the limit, replace either or both camshaft and cylinder head.
  NOTE: Camshaft bracket cannot be replaced as a single part because it is machined together with the cylinder head. Replace whole cylinder head assembly.

Camshaft End Play 

• Install dial indicator in thrust direction on front end of camshaft. Measure the end play of dial indicator when camshaft is moved forward/backward (in direction to axis).

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  Standard	: 0.115 - 0.188 mm (0.0045 - 0.0074 in)
  Limit	: 0.24 mm (0.0094 in)

• Measure the following parts if out of the limit.

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  • Dimension (A) for camshaft No. 1 journal

    Standard

    : 27.500 - 27.548 mm (1.0827 - 1.0846 in)

  • Dimension (B) for cylinder head No. 1 journal bearing

    Standard

    : 27.360 - 27.385 mm (1.0772 - 1.0781 in)

• Following the standards above; replace camshaft and/or cylinder head.

Camshaft Sprocket Runout 

1. Put V-block on precise flat table, and support Nos. 2 and 4 journal of camshaft.
   CAUTION: Do not support journal No. 1 (on the side of camshaft sprocket) because it has a different diameter from the other three locations.
2. Measure the camshaft sprocket runout with dial indicator. (Total indicator reading)

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   Limit

   : 0.15 mm (0.0059 in)

   • If it exceeds the limit, replace camshaft sprocket.

Valve Lifter 

Check if surface of valve lifter has any wear or cracks.

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• If anything above is found, replace valve lifter. Refer to Standard and Limit .

Valve Lifter Clearance 

VALVE LIFTER OUTER DIAMETER 

• Measure the outer diameter at 1/2 height of valve lifter with micrometer since valve lifter is in barrel shape.

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  Standard (Intake and exhaust)

  : 33.977 - 33.987 mm (1.3377 - 1.3381 in)

VALVE LIFTER HOLE DIAMETER 

• Measure the inner diameter of valve lifter hole of cylinder head with inside micrometer.

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  Standard (Intake and exhaust)

  : 34.000 - 34.016 mm (1.3386 - 1.3392 in)

VALVE LIFTER CLEARANCE 

• (Valve lifter clearance) = (Valve lifter hole diameter) - (Valve lifter outer diameter), Refer to Valve Clearance .

  Standard (Intake and exhaust)

  : 0.013 - 0.039 mm (0.0005 - 0.0015 in)

• If the calculated value is out of the standard, referring to each standard of valve lifter outer diameter and valve lifter hole diameter, replace either or both valve lifter and cylinder head.