ARMY TM 9-2815-25624
AIR FORCE TO 38G1-96-2
MARINE CORPS TM 2815-24/5
Using driver (JD286), install bushing (12) in connecting rod (4). If required, hone bushing to obtain piston
. pin clearance of 0.0008 to 0.0024 inch (0.02 to 0.06 mm).
3-46.3 Engine Block.
Cleaning solvent is flammable and toxic to eyes, skin, and respiratory tract. Skin/eye protection
required. Avoid repeated/prolonged contact. Good general ventilation is normally adequate.
Compressed air used for cleaning can create airborne particles that can enter the eyes. Pressure will
not exceed 30 psig (207 kPa). Eye protection required.
Inspect and clean engine block as follows:
All components (including piston cooling nozzles, soft plugs, and oil gallery plugs) must be removed
from the cylinder block for inspection and cleaning.
Inspect each piston cooling nozzle (1, FIGURE 3-155) to make sure it is not plugged or damaged. Cooling
nozzles deliver approximately 0.4 gallon per min (1.50 liters/min) oil flow.
FIGURE 3-155. Inspecting piston Cooling Nozzles
Use a soft wire and compressed air to clean nozzle. Replace if condition is questionable, refer to