Cylinder Block Distortion

WARNING: This page is about a different variant/trim than selected.

Using a scraper, remove any old gasket material on the cylinder block surface, and remove any oil, scale, carbon, or other contamination.
CAUTION: Be careful not to allow gasket flakes to enter the oil or coolant passages.
Measure the distortion on the block upper face at different points in six directions.
1. Distortion limit : 0.10 mm (0.0039 in)
Fig 1: Checking For Warpage
Courtesy of NISSAN MOTOR CO., U.S.A.
If out of specification, resurface the cylinder block. The allowable amount of resurfacing is dependent on the amount of any cylinder head resurfacing. The resurfacing limit is [amount of cylinder head resurfacing] + [amount of cylinder head resurfacing] = 0.2 mm (0.008 in).
1. Resurfacing limit : 214.95-215.05 mm (8.4626-8.4665 in)