DETROIT DIESEL 53
PREPARING ENGINE FOR STORAGE
preventive compound. Therefore, it is recommended
When an engine is to be stored or removed from
that the engine be processed for storage as soon as
operation for a period of time, special precautions
possible after removal from operation.
should be taken to protect the interior and exterior of the
engine, transmission and other parts from rust
The engine-should be stored in a building which is dry
accumulation and corrosion.
The parts requiring
and can be heated during the winter months. Moisture
attention and the recommended preparations are given
absorbing chemicals are available commercially for use
when excessive dampness prevails in the storage area.
It will be necessary to remove all rust or corrosion
completely from any exposed part before applying a rust
TEMPORARY STORAGE (30 days or less)
To protect an engine for a temporary period of time,
5. If freezing weather is expected during the storage
proceed as follows:
period, add a high boiling point type antifreeze solution
1. Drain the engine crankcase.
6. Clean the entire exterior of the engine (except the
2. Fill the crankcase to the proper level with the
electrical system) with fuel oil and dry it with air.
recommended viscosity and grade of oil.
3. Fill the fuel tank with tl'e recommended grade of fuel
7. Seal all of the engine openings. The material used
oil. Operate the engine for two minutes at 1200 rpm
for this purpose must be waterproof, vaporproof and
and no load.
possess sufficient physical strength to resist puncture
and damage from the expansion of entrapped air.
Do not drain the fuel system or the
An engine prepared in this manner can he returned to
crankcase after this run.
service in a short time by removing the seals at the
engine openings, checking the engine coolant, fuel oil,
4. Check the air cleaner and service it, if necessary, as
outlined in Section 3.1.
EXTENDED STORAGE (30 days or more)
6. Circulate the coolant through the entire system by
When an engine is to be removed from operation for an
operating the engine until normal operating temperature
extended period of time, prepare it as follows:
is reached (160'F. to 185F).
1. Drain and thoroughly flush the cooling system with
7. Stop the engine.
clean, soft water.
8. Remove the drain plug and completely drain the
2. Refill the cooling system with clean, soft water.
engine crankcase. Reinstall and tighten the drain plug.
3. Add a rust inhibitor to the cooling system (refer to
Install new lubricating oil filter elements and gaskets.
Corrosion Inhibitors in Section 13.3).
9. Fill the crankcase to the proper levl with a 30weight
4. Remove, check and recondition the injectors, if
necessary, to make sure they will be ready to operate
when the engine is restored to service.
5. Reinstall the injectors in the engine, time them, and
10. Drain the engine fuel tank.
adjust the valve clearance.
1970 General Motors Corp
July, 1970 SEC. 15.3