Valve Lifter Clearance (INT)

WARNING: This page is about a different car, the 2013 Infiniti FX50. However, it is still accessible from the selected car via links, so may be relevant.

VALVE LIFTER OUTER DIAMETER

Measure the outer diameter at 1/2 height of valve lifter (INT) with a micrometer (A) since valve lifter is in barrel shape.
Standard: Refer to "CAMSHAFT ".

Fig 1: Measuring Outer Diameter At 1/2 Height Of Valve Lifter Using Micrometer
Courtesy of NISSAN NORTH AMERICA, INC.

VALVE LIFTER HOLE DIAMETER

Measure the inner diameter of valve lifter hole of cylinder head with an inside micrometer.
Standard: Refer to "CAMSHAFT ".

Fig 2: Measuring Inner Diameter Of Valve Lifter Hole Of Cylinder Head Using Inside Micrometer
Courtesy of NISSAN NORTH AMERICA, INC.

VALVE LIFTER CLEARANCE
(Valve lifter clearance) = (Valve lifter hole diameter) - (Valve lifter outer diameter)
Standard: Refer to "CAMSHAFT ".
If the calculated value is out of the standard, replace VVEL ladder assembly & cylinder head assembly.
NOTE: Since the valve lifter (INT) cannot be replaced by the piece, VVEL ladder assembly & cylinder head assembly replacement are required.