EX35 RWD V6-3.5L (VQ35HR) (2008)
1. Measure the camshaft cam height with a micrometer.
Standard cam height: Refer to EM-140, "Camshaft". See: Specifications/Service Limits and General Specifications
(Intake and exhaust)
Cam wear limit: Refer to EM-140, "Camshaft". See: Specifications/Service Limits and General Specifications
2. If wear exceeds the limit, replace camshaft.
Camshaft Journal Oil Clearance
CAMSHAFT JOURNAL DIAMETER
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Measure the outer diameter of camshaft journal with a micrometer (A).
Standard: Refer to EM-140, "Camshaft". See: Specifications/Service Limits and General Specifications
CAMSHAFT BRACKET INNER DIAMETER
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Tighten camshaft bracket bolt with the specified torque. Refer to "INSTALLATION" for the tightening procedure.
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Measure inner diameter (A) of camshaft bracket with a bore gauge.
Standard: Refer to EM-140, "Camshaft". See: Specifications/Service Limits and General Specifications
CAMSHAFT JOURNAL OIL CLEARANCE
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(Oil clearance) = (Camshaft bracket inner diameter) - (Camshaft journal diameter).
Standard and limit: Refer to EM-140, "Camshaft". See: Specifications/Service Limits and General Specifications
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If the calculated value exceeds the limit, replace either or both camshaft and cylinder head.
NOTE:
Camshaft brackets cannot be replaced as single parts, because there are machined together with cylinder head. Replace whole cylinder head
assembly.
Camshaft End Play