Vedeneyev M-14P, Maintenance Manual, Page: 146 / 381

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(2) Run the engine for 10 to 15 min at a speed of 35 to 41 % (1000 to 1200 r/min) on gasoline B-70 with
10 % oil MS-20 and on oil used to operate it.
(3) Stop the engine and cool it down to the cylinder head temperature of 30 to 40 °C.
(4) Drive out the front spark plugs.
Turn the airscrew shaft for 8 to 10 turns with the carburetor throttle fully open to scavenge the cylinders of
exhaust gases,
(5) Pill 70 to 100 g of clean dehydrated oil MS-20 heated to 60 to 80 °C or 70 to
100 g of preservation oil K-17 heated to 40 °C with the piston at the TDC through the spark plug holes of
each cylinder using a syringe. Turn the airscrew for 1 to 2 turns. Reinstall the spark plugs.
(6) Wipe the engine outer surfaces with a clean cloth (or rags) moistened in gasoline Nefras-S 50/170 or
BR-1, BR-2, clean the rubberized fabric hoses with a clean dry cloth.
(7) At above-zero ambient temperature, turn the airscrew shaft 6 to 8 turns each 10 days with the
carburetor throttle fully opened.
(8) If the dead period exceeds 20 days, represerve the engine according to Items 1 through 7.
(9) The engine preserved for 20 days is not subject to depreservation.
NOTE; It is allowed to perform up to three represervation cycles after which the engine should be
preserved for a storage period of 30 or 90 days.
2.3. PRESERVATION AMD DEPRESERVATION OF ENGINE INSTALLED ON
AIRPLANE FOR STORAGE PERIOD OP UP TO 30 DAYS
(1) Start and warm up the engine (Ref. Task Card No. 201).
(2) Stop the engine, drain oil from the oil tank and engine immediately after shutdown. Fill the oil tank
with fresh oil, the fuel tank with gasoline B-70 with 10 % oil MS-20.
(3) Start the engine and run it for 10 to 15 min at a speed of 35 to 41 % (1000 to 1200 r/min),
(4) Stop the engine, cool it down to a cylinder head temperature of 30 to 40 °C.
(5) Drive out the front spark plugs. Disconnect the pipe from the compressor delivery valve connection.
Remove the spring lock, mesh, filtering element, second mesh, Fill clean oil MS-20 heated to a temperature of 60
to 80 °C through the suction valve of the compressor, turning the airscrew shaft simultaneously till oil emerges
from the delivery valve.
(6) Using a syringe fill 70 to 100 g of clean dehydrated oil MS-20 heated to a temperature of 60 to 80 °C
or 70 to 100 g of preservation oil K-17 heated to a temperature of 40 °C into each cylinder through the spark plug
holes with the piston at the BDC; lubricate the seats and heads of the exhaust valves, turn the airscrew shaft for 2
to 3 turns. Reinstall the mesh, filtering element, second mesh, spring lock of the compressor. Connect the pipe of
the delivery valve connection of the compressor.
(7) Again fill 70 to 100 g of clean dehydrated oil MS-20 heated to a temperature of 60 to 80 °C or 70 to
100 g of preservation oil K-17 heated to a temperature of 40 °C into each cylinder using a syringe without turning
the airscrew shaft.
(8) Perform internal preservation of the fine fuel filter with pipelines disconnected by filling or forcing oil
MS-20 heated to a temperature of 60 to 70 °C till the interior spaces are filled and air bubbles are removed. Drain
oil from the interior. Connect the pipelines.
(9) Preserve the carburetor, using the following procedure:
(a) Set the carburetor throttle lever to the full-open stop.
(b) Drive out plug (3) (Ref. 073.10.03, Pig. 202) of the automatic mixture control and drain plug (2) (Ref.
073.10.03, Fig. 201).
(c) Disconnect the pipelines from connection (6) for feeding fuel to the carburetor and from connection (7)
for measuring fuel pressure at the carburetor inlet.
(d) Screw a shipping cap on connection (7) and connect to connection (6) a hand pump pipe filled with oil
MS-20 heated to a temperature of 60 to 70 °C.
(e) Open the fuel valve by unscrewing plug (6) (Ref. 073.10.03, Fig. 202) for
measuring air pressure in the governor air space and supply air at a pressure of 0.3 to 0.5 kgf/cm2.
(f) Plush the carburetor with oil heated to a temperature of 60 to 70 °C at a
0
pressure of 0.2 to 0.5 kgf/cm till it appears in the hole for plug (2), install the plug and keep on pumping
till oil emerges from the hole of plug (3)» install this plug and keep on pumping till oil appears in emulsion holes of
the nozzle.
(g) Stop pumping as soon as oil starts flowing from the nozzle holes and perform two or three energetic
turns of the throttle lever from stop to stop.
(h) Drive out the pipe from connection (6) (Ref. 073.10.03, Pig. 201), remove the cap from connection (7),
drive out lower drain plug (5) (Ref. 073.10.03, Pig. 202) and upper drain plug (2) (Ref. 073.10.03, Pig. 201) and