Nissan 13231-7S020 Lifter-Valve

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Retract and remove the left timing chain tensioner.

Inspect each lifter for scuffing, measure their diameters, and determine oil clearance. Lubricate the lifters with clean engine oil and place them back in their original locations.

Subtract the outside diameter of each lifter from the inside diameter of the lifter bore and compare the difference to the clearance specified in this Chapter. If both the lifter and the bore are within acceptable limits, this measurement should fall within tolerance. However, if new parts such as lifters or the lifter guide assembly (SOHC) or the cylinder head (DOHC) have been changed, this clearance may no longer fall within the specified limit.

For camshaft removal, take off the cylinder heads, then remove the bolts and gently pry off the camshaft cover plate at the transaxle end.

The remainder of the installation follows the reverse order of removal, and if any part of the valve train was replaced, check and adjust the valve clearance.