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SERIES 638 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 exposed part before applying 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 that 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 area.

Temporary Storage (30 Days or Less)

To protect an engine for a temporary period of 30 days or less, proceed as follows: ‪

  1. Drain the engine crankcase.
  2. Fill the crankcase to the proper level with the recommended viscosity and grade of lubrication oil listed in Table .

    Specification

    Recommendation

    SAE Viscosity Grade ‪

    15W-40 ‪

    API Classification ‪

    CG-4 ‪

    Military Specification ‪

    MIL-L-2104E ‪

    HT/HS Viscosity ‪

    3.7 cP (minimum) ‪

    Recommended Engine Lubrication Oil
  3. Fill the fuel tank with the recommended grade of fuel oil listed in Table . Operate the engine for two minutes at 1200 r/min and no load.

    Note: Do not drain the fuel system or the crankcase after this run.

    General Fuel Classification

    ASTM Test

    No. 1 ASTM 1-D

    No. 2 ASTM 2-D

    Gravity, API (Not specified in ASTM D 975) ‪

    D 287 ‪

    40-44 ‪

    33-37 ‪

    Flash Point, Minimum- F ( C) ‪

    D 93 ‪

    100 (38) ‪

    125 (52) ‪

    Viscosity, Kinematic-cSt @ 100 F (40 C) ‪

    D 445 ‪

    1.3-2.4 ‪

    1.9-4.1 ‪

    Cloud Point (Not specified in ASTM D 975) ‪

    D 2500 ‪

    See Note ‪

    See Note ‪

    Sulfur Content, Maximum-wt% ‪

    D 129 ‪

    0.05 (0.5) ‪

    0.05 (0.5) ‪

    Carbon Residue on 10%, Maximum-wt% ‪

    D 524 ‪

    0.15 ‪

    0.35 ‪

    Accelerated Stability, Total Insolubles, Maximum-mg/100 mL ‪

    D 2274 ‪

    1.5 ‪

    1.5 ‪

    Ash, Maximum-wt % ‪

    D 482 ‪

    0.01 ‪

    0.01 ‪

    Cetane Number, Minimum(Differs from ASTM D 975) ‪

    D 613 ‪

    45 ‪

    45 ‪

    Distillation Temperature, F ( C) ‪

    ASTM Test ‪

    No. 1 ASTM 1-D ‪

    No. 2 ASTM 2-D ‪

    IBP, Typical (Not specified in ASTM D 975) ‪

    D 86 ‪

    350 (177) ‪

    375 (191) ‪

    10% Typical (Not specified in ASTM D 975) ‪

    D 86 ‪

    385 (196) ‪

    430 (221) ‪

    50% Typical (Not specified in ASTM D 975) ‪

    D 86 ‪

    425 (218) ‪

    510 (256) ‪

    90% Maximum (Differs from ASTM D 975) ‪

    D 86 ‪

    500 (260) ‪

    625 (329) ‪

    End Point, Maximum (Not specified in ASTM D 975) ‪

    D 86 ‪

    550 (288) ‪

    675 (357) ‪

    Water & Sediment, Maximum wt% ‪

    D 1796 ‪

    0.05 ‪

    0.05 ‪

    Fuel Oil Selection Chart
  4. Check the air cleaner and service it, if necessary. Refer to OEM guidelines.
  5. If freezing weather is expected during the temporary storage period, add an ethylene glycol base antifreeze solution to the cooling system in accordance with the manufacturer's recommendations. Otherwise, the coolant system should be flushed and filled with a good rust inhibitor to prevent rusting of the outside diameter of the cylinder liners.
  6. Remove electrical components.
  7. Clean the engine exterior (except electrical components) with fuel oil.
  8. Seal all of the engine openings with a material used for this purpose. The material used for sealing must be waterproof, vapor proof and possess sufficient physical strength to resist puncture and damage from the expansion of entrapped air.

RESTORING A TEMPORARILY STORED ENGINE

An engine that was stored in accordance with the guidelines for temporary storage (refer to section .) can be returned to service in a short time by removing the seals at the engine openings and by checking the engine coolant, fuel oil, lubricating oil and transmission oil levels. ‪

Extended Storage (More than 30 Days)

To prepare an engine for extended storage (more than 30 days), follow this procedure: ‪

  1. Drain the cooling system.
  2. Flush with clean, soft water.
  3. Refill with clean, soft water and add a rust inhibitor to the cooling system.
  4. Circulate the coolant by operating the engine until normal operating temperature is reached.
  5. Stop the engine.
  6. Drain the cooling system.
  7. Install new lubricating oil filter.
  8. Fill the crankcase to the proper level with a 30-weight preservative lubricating oil MIL-L-21260C, Grade 2.
  9. Drain the fuel tank.
  10. Refill with enough clean No. 1 diesel fuel or pure kerosene to permit the engine to operate for about ten minutes. If it isn't convenient to drain the fuel tank, use a separate, portable supply of recommended fuel.

    Note: If engines in vehicles are stored where condensation of water in the fuel tank may be a concern, supplemental additives containing methyl carbitol or butyl cellusolve are effective. Follow the manufacturer's instructions for their use. The use of isopropyl alcohol is not recommended due to its negative effect on fuel lubricity. Where biological contamination of fuel may be a problem, add a biocide such as Biobor JF (or equivalent) to the fuel. When using a biocide, follow the manufacturer's concentration recommendations, and observe all cautions and warnings. Avoid the use of fungicides containing halogenated compounds, since these may cause fuel system corrosion.

  11. Drain the fuel system.
  12. Remove the fuel filter. Discard the used filter.
  13. Install a new filter and fill with No. 1 diesel fuel or pure kerosene.
  14. Operate the engine for five minutes to circulate the clean fuel oil throughout the engine. Be sure the engine fuel system is full.
  15. Disconnect the fuel return line and the inlet line at the filter and securely plug both to retain the fuel in the engine.
  16. Service the air cleaner. Refer to OEM guidelines.
  17. To prepare the transmission and turbocharger:
    1. Follow the manufacturer's recommendations for prolonged storage to store the transmission.
    2. The turbocharger air inlet and turbine outlet connections should be sealed off with moisture resistant tape.
  18. Apply a non-friction rust preventive compound to all exposed engine parts. If convenient, apply the rust preventive compound to the engine flywheel. If not, disengage the clutch mechanism to prevent the clutch disc from sticking to the flywheel.
  19. Drain the engine cooling system.
  20. Drain the preservative oil from the engine crankcase.
  21. Remove and clean the battery and battery cables with a baking soda-water solution and rinse with fresh water. Do not allow the soda solution to enter the battery.
  22. Add distilled water to the electrolyte (if necessary) and fully charge the battery.

    NOTICE:

    To avoid battery damage caused by freezing, never store a battery in a place below 0 C (32 F). ‪

  23. Store the battery in a cool, dry place. Keep the battery fully charged and check the level and specific gravity of the electrolyte regularly.
  24. Insert heavy paper strips between the pulleys and drive belts to prevent sticking.
  25. Seal all engine openings including the exhaust outlet, with moisture resistant tape. Use cardboard, plywood or metal covers where practical.
  26. Clean and dry the exterior painted surfaces of the engine and spray with a suitable liquid automobile body wax, a synthetic resin varnish or a rust preventive compound.
  27. Protect the engine with a good weather-resistant tarpaulin and store it under cover, preferably in a dry building which can be heated during the winter months.

    Note: Plastic may be used for indoor storage.

Outdoor Storage (30 Days or Less)

In some cases outdoor storage may be unavoidable. ‪

Note: Outdoor storage of engines is not recommended.

If units must be kept out-of-doors, protect these units with quality, weather-resistant tarpaulins (or other suitable covers) arranged to provide for air circulation. ‪

NOTICE:

Do NOT use plastic sheeting for outdoor storage. Plastic is fine for indoor storage. When used outdoors, however, enough moisture can condense on the inside of the plastic to rust ferrous metal surfaces and pit aluminum surfaces. If a unit is stored outside for any extended period of time, severe corrosion damage can result. ‪

The stored engine should be inspected periodically. If there are any indications of rust or corrosion, corrective steps must be taken to prevent damage to the engine parts. ‪

Outdoor Storage (More than 30 Days)

In some cases outdoor storage may be unavoidable. ‪

Note: Outdoor storage of engines is not recommended.

If units must be kept out-of-doors, protect these units with quality, weather-resistant tarpaulins (or other suitable covers) arranged to provide for air circulation. ‪

NOTICE:

Do NOT use plastic sheeting for outdoor storage. Plastic is fine for indoor storage. When used outdoors, however, enough moisture can condense on the inside of the plastic to rust ferrous metal surfaces and pit aluminum surfaces. If a unit is stored outside for any extended period of time, severe corrosion damage can result. ‪

The stored engine should be inspected periodically. If there are any indications of rust or corrosion, corrective steps must be taken to prevent damage to the engine parts. ‪