Removal ProcedureRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.
Remove the fill plug-(1).Installation Procedure
Clean the fill plug and apply adhesive GM-P/N-12345493 (Canadian-P/N-10953488) tothe threads.
Caution:Refer toFastener Caution.
Install the fill plug-(1) and tighten to 39-Y (29-lb-ft).Lower the vehicle.Cylinder Boring and Honing (LAF, LEA, or LUK)
Boring ProcedureMeasure all pistons with a micrometer to determine thecylinder bore diameter. Refer toEngine Block Cleaning and Inspection.Before you use any type of boring bar, use a fine file andclean the top of the cylinder block, removing any dirt or burrs. Ifyou do not check the cylinder block, ...