Camshaft Journal Clearance

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

Camshaft Journal Diameter

Measure the diameter of the camshaft journal.
Standard diameter: 25.950 - 25.970 mm (1.0217 - 1.0224 in)

Fig 1: Measuring Camshaft Journal Diameter Using Micrometer
Courtesy of NISSAN NORTH AMERICA, INC.

Camshaft Bracket Inner Diameter

Tighten the camshaft bracket bolt to the specified torque.
Measure the inner diameter of the camshaft bracket.
Standard: 26.000 - 26.021 mm (1.0236 - 1.0244 in)

Calculation of Camshaft Journal Clearance

(Journal clearance) = (camshaft bracket inner diameter) - (camshaft journal diameter)

Standard: 0.030 - 0.071 mm (0.0012 - 0.0028 in)

Fig 2: Measuring Camshaft Journal Clearance Using Gauge

Courtesy of NISSAN NORTH AMERICA, INC.

If measurement is not within specification, replace either or both camshaft and cylinder head.

NOTE: The inner diameter of the camshaft bracket is manufactured together with the cylinder head. Replace the whole cylinder head as an assembly.