Vedeneyev M-14P, Руководство по обслуживанию

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Table 1
Characteristics
Parameter
B-70
TU 38.101913-82
(USSR)
Grades 73 and 80
DERD-2485 (England)
Grade 80 Mil-F-5572B
(USA)
Saturated vapor pressure Fraction
distillation temperature:
Beginning of distillation
10 % distillation
50 % distillation
90 % distillation
97.5 % distillation
Ethyl fluid content
Up to 360 mm Hg
Not below 40 °C
Not above 88 °C
Not above 105 °C
Not above 145 °C
Not above 180 °C
None Up to 380 mm Hg
Not above 75 °C
Not above 105 °C
Not above 133 °C
Not above 170 °C
None Up to 380 mm Hg
Not above 75 °C
Not above 105 °C
Not above 125 °C
Not above 170 °C
None
NOTE: It is allowed to use gasoline Nefras-S 50/170 GOST 8505-80 for washing and wiping during
scheduled maintenance of the engine, replacement and depreservation of accessories, spares and the engine, as
well as during washing of airplane oil tanks and lines. Using gasoline Nefras-S 50/170 as fuel Instead of gasoline B-
70 and its substitutes at preservation and depreservation of the engine is PROHIBITED.
2.LUBRICANTS
The M-14P engines use oil MS-20. Specifications of oil MS-20 GOST 21743-76.
Kinematic viscosity at 100 °C ........................... ....................... Not less than 20 cSt
Ratio of 50 °C viscosity to 100 °C viscosity ............ ................. Not more than 7.85
Conradson carbon value .................................. ....................... Not more than 0.3 %
Acidity ................................................. ..................................... Not more than 0.05 mg KOH
per 1 g of oil
Ash content ............................................. ................................. Not more than 0.003 %
Content:
Selective solvents .................................... ................................ None
Water-soluble acids and alkalis ....................... ........................ None
Mechanical impurities ................................. ............................. None
Water ................................................. ...................................... None
Flashing point .......................................... ................................ Not less than 250 °C
Difference between Brenken and Martens-Pensky flashing points ..........Not more than 20 °C
Freezing point .......................................... ................................ Not above minus 18 °G
Papok thermooxidatlon stability at 250 °C in oil ........ .............. Not less than 17
Viscosity coefficient ................................... .............................. Not more than 55
Specific gravity ........................................ ................................. Not more than 0.985 g/cm
3
NOTE: Oil MS-20 may be replaced with other oils of grades B/0 (England) and 1100 (USA) whose physical
and chemical properties are indicated in Table 2.