the carburetor is to remain on the engine during storage, the  throttle valve should be wired open and a seal installed over  the air inlet. But, if the carburetor is removed and stored  separately, the seal is made at the carburetor mounting pad.  The seal used in either instance can be an oil-proof and  moisture-proof gasket, backed by a wooden or metal plate  securely bolted into place. Silica gel should be placed in the  intake manifold to absorb moisture. The silica gel bags are  usually suspended from the cover plate. This eliminates the  possibility of forgetting to remove the silica gel bags when  the engine is eventually removed from storage. A ventilatory  cover, without silica gel bags attached, can be used when the  engine is stored in a metal container. After the following details have been taken care of, the  engine is ready to be packed into its container. If the engine  has not been spray coated with corrosion-preventive mixture,  the propeller shaft and propeller shaft thrust bearing must  be coated with the compound. Then, a plastic sleeve, or  moisture-proof paper, is secured around the shaft, and a  threaded protector cap is screwed onto the propeller retaining  nut threads. All engine openings into which dehydrator plugs (or  ventilatory plugs if the engine is stored in a metal container)  have not been fitted must be sealed. At points where  corrosion-preventive mixture can seep from the interior of  the engine, such as the oil inlet and outlet, oil-proof and  moisture-proof gasket material backed by a metal or wooden  plate should be used. At other points moisture-proof tape can  be used if it is carefully installed. Before its installation in a shipping container, the engine  should be carefully inspected to determine if the following  accessories, which are not a part of the basic engine, have  been removed: spark plugs and spark plug thermocouples,  remote fuel pump adapters (if applicable), propeller hub  attaching bolts (if applicable), starters, generators, vacuum  pumps, hydraulic pumps, propeller governors, and engine- driven fuel pumps. WARNING: To prevent serious bodily injury or death,  accomplish the following before moving the propeller: Before the protective envelope is sealed, silica gel should be  placed around the engine to dehydrate the air sealed into the  envelope. The amount of silica gel used is determined by the  The engine is lowered into the shipping container so that the  mounting plate can be bolted into position. The protective  envelope is attached directly to the base of the shipping  case. Then, the engine is lowered vertically onto the base  and bolted directly to it. A carburetor not mounted on its  reciprocating engine (or no provision is made to seal it in a  small container to be placed inside the shipping case) can, in  some cases, be fastened to a specially constructed platform  bolted to the engine. For protection, engines are sealed in plastic or foil envelopes  and can be packed in a wooden shipping case or in pressurized  metal containers. 1. Remove seals and all desiccant bags. 2. Remove cylinder dehydrators and plugs or spark plugs  from upper and lower spark plug holes. 3. Remove oil sump drain plug and drain the corrosion  preventive mixture. Replace drain plug, torque and  safety. Remove oil filter. Install new oil filter, torque  and safety. Service the engine with oil in accordance  with the manufacturer’s instructions. a. Disconnect all spark plug leads. b. Verify that magneto switches are connected to  magnetos and that they are in the off position and  P-leads are grounded. c. Throttle position CLOSED. d. Mixture control IDLE-CUT-OFF. e. Set brakes and block aircraft wheels. Ensure that  aircraft tiedowns are installed and verify that the  cabin door latch is open. f. Do not stand within the arc of the propeller blades  while turning the propeller. 4. Rotate propeller by hand several revolutions to remove  preservative oil. 5. Service and install spark plugs and ignition leads in  accordance with the manufacturer’s instructions. 6. Service engine and aircraft in accordance with the  manufacturer’s instruction. 7. Thoroughly clean the aircraft and engine. Perform  visual inspection. 8. Correct any discrepancies. 9. Conduct a normal engine start. 10. Perform operational test in accordance with operational  inspection of the applicable Maintenance Manual. 11. Correct any discrepancies. 12 Perform a test flight in accordance with airframe  manufacturer’s instructions. 13. Correct any discrepancies prior to returning aircraft  to service. 14. Change oil and filter after 25 hours of operation. Engine Shipping Containers 8-21