z Remove the cooling water drain plug from the cylinder block and various pipes, etc. and let the Drain plug (Cylinder block) cooling water discharge into the prepared vessel. 3.1.4. Engine oil z Remove an oil drain plug from the oil pan, and let engine oil discharge into the prepared vessel. Drain plug 3.1.5. Cooling fan z Remove the fan guide and bracket. z Remove the flange fixing bolts, and then take off the flange and cooling fan. Cooling fan DL06 Diesel Engine Disassembly and Reassembly of Major Components 55