Altima V6-3.5L (VQ35) (2003)
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Check if the surface of the valve lifter has any excessive wear or cracks, replace as necessary.
Valve Lifter Clearance
Outer Diameter of Valve Lifter
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Measure the outer diameter of the valve lifter.
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If out of the specified range, replace the valve lifter.
Valve Lifter Bore Diameter
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Using inside micrometer, measure diameter of valve lifter bore of cylinder head.
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If out of the specified range, replace the cylinder head assembly.
Calculation of Valve Lifter Clearance
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(Valve lifter clearance)=(hole diameter for valve lifter)-(outer diameter of valve lifter)
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If out of specified range, replace either or both valve lifter and cylinder head assembly.