Cylinder Block, Liners, Pistons, and Rods
INSPECT AND CLEAN CYLINDER BLOCK
IMPORTANT: If cylinder block is cleaned in a hot
tank, be sure to remove any aluminum
parts. Aluminum parts can be damaged
or destroyed by hot tank solutions.
Remove all serial number plates.
NOTE: All components (including piston cooling orifices),
water gallery plugs and oil gallery plugs must be
removed from the cylinder block for inspection
and cleaning. Refer to the proper group for
Tap for Head Mounting Holes in Block
removal of all external and internal mounted
1. Use D17015BR O-ring Bore Cleaning Brush or an
equivalent brush to thoroughly clean all debris from
cylinder liner O-ring bores.
2. Remove cylinder head locating dowels, if not
previously removed. Clean out all threaded holes for
cylinder head mounting cap screws in top deck of
cylinder block. Use JDG681 Tap or an equivalent
9/16-12 UNC-2A tap approximately 88.9 mm (3.5 in.)
long. Use compressed air to remove any debris or fluid
which may be present in the cap screw hole.
Continued on next page