Gen 5 DD Platform Operators Manual High coolant temperature indicator Water-in-Fuel warning indicator Air restriction indicator Watch for any signs of engine problems when starting or driving. If the engine overheats, uses excessive fuel or lubricating oil, vibrates, misfires, makes unusual noises or shows an unusual loss of power, turn the engine off as soon as possible and contact an authorized Detroit™ service outlet for further instructions. Engine damage may be avoided by a quick response to early indications of problems.
After an Extended Storage An engine in storage for an extended period of time (over winter, for example) may accumulate water in the oil pan through normal condensation of moisture (always present in the air) on the cold, internal surfaces of the engine. Lubricating oil diluted by water cannot provide adequate bearing protection at engine startup leading to serious engine damage. For this reason, Detroit™ recommends replacing the engine lubricating oil and filter after extended storage. Check the cooling system as follows: Checking the Cooling System 1. Make sure all draincocks in the cooling system are installed and are closed tightly. 2.
Fill the coolant overflow surge tank with approved coolant; Refer to section "How to Select Coolants" until the coolant level stays between the low and full coolant marks on the tank. Do not overfill the coolant as overfilling will cause the surge tank to push coolant out. 3. Entrapped air must be purged after filling the cooling system. To do this, warm up the engine with the pressure cap removed. With the transmission in neutral, increase engine speed to 1000 rpm and add coolant to the surge tank as needed. 4. Check to make sure the front of the radiator and charge air cooler are unblocked and free of debris.
Lubrication System Checks The lubricating oil film on the rotating parts and bearings of a new or newly overhauled engine, or one which has been in storage for six months or more, may be insufficient when the engine is started for the first time. To ensure an immediate flow of oil to all bearing surfaces at initial engine startup, prepare the engine as follows: All information subject to change without notice. 23 DDC-SVC-MAN-0217 Copyright © 2022 DETROIT DIESEL CORPORATION