PREPARING ENGINE FOR STORAGE
When an engine is to be stored or removed from operation for a period of time, special precautions should be
taken to protect the interior and exterior of the engine, transmission, and other parts from rust accumulation
and corrosion. The parts requiring attention and the recommended preparations are given below.
It will be necessary to remove all rust or corrosion completely from any ex- posed part before applying a rust
preventive compound. Therefore, it is recommended that the engine be processed for storage as soon as
possible after removal from operation.
The engine should be stored in a building which is dry and can be heated during the winter months. Moisture-
absorbing chemicals are available commercially for use when excessive dampness prevails in the storage
TEMPORARY STORAGE (30 days or less)
To protect an engine for a temporary period of time, proceed as follows:
1. Drain the engine crankcase.
2. Fill the crankcase to the proper level with the recommended viscosity and grade of oil.
3. Fill the fuel tank with the recommended grade of fuel oil. Operate the engine for two minutes at 1200 rpm
and no load.
Do not drain the fuel system or the crankcase after this run.
4. If freezing weather is expected -during the storage period, add a permanent type antifreeze solution in ac-
cordance with the manufacturer's recommendations. Drain the raw water system and leave the draincocks
5. Clean the entire exterior of the engine (except the electrical system) with fuel oil and dry it with com-
6. Seal all of the engine openings. The material used for this purpose must be waterproof, vaporproof and
possess sufficient physical strength to resist puncture and damage from the expansion of entrapped air.
An engine prepared in this manner can be returned to service in a short time by removing the seals at the
engine openings, checking the engine coolant, fuel oil, lubricating oil, transmission, and priming the raw water
pump, if used.
EXTENDED STORAGE (more than 30 days)
When an engine is to be removed from operation for an extended period of time, prepare it as follows:
1. Drain and thoroughly flush the cooling system with clean, soft water.
2. Refill the cooling system with clean, soft water.
3. Add a rust inhibitor to the cooling system (refer to Corrosion Inhibitors in Coolant Specifications).