TrailBlazer 4WD L6-4.2L VIN S (2002)
20. Install a straight edge on the cylinder block perpendicular to the crankshaft center line.
21. Using a light, illuminate the backside of the straight edge.
22. Looking at the front of the straight edge, check to see if light is protruding through the bottom of the straight edge and the top of the cylinder bore
sleeve flange. If light is present of either side or both sides of the cylinder bore sleeve, the cylinder bore sleeve is cut incorrectly and a new
cylinder bore sleeve needs to be installed.
23. Looking at the front of the straight edge, check to see if light is protruding through the bottom of the straight edge and the top of the cylinder block
deck surface. If light is present on both sides of the cylinder block, the cylinder bore sleeve is cut correctly.
24. Proceed to the next cylinder bore sleeve to be trimmed repeat steps 10-23 if necessary.
