Section 1 - Cylinder Block - Group 01 Cylinder Block - Inspection for Reuse (1-02) M11 Page 1-17 Evaluate the main bearing bore alignment inspection as follows: If the feeler gauge will not go in the bore at any point and the checking bar rotates freely, the main bear- ing bore is acceptable. If the feeler gauge will enter the bore at one point on one side of the checking ring, but will not enter the bore 180 degrees from that point on the same side and the checking bar rotates freely, there is a slight misalignment but the main bearing bore is acceptable. If the feeler gauge is loose in the bore, the bore is oversize and not acceptable. Mark the main bearing bore to be repaired.
If the feeler gauge will enter the bore all the way around on one side of the checking ring, but will not enter the bore on the other side, the bore is tapered and not acceptable. Mark the main bearing bore to be repaired.