Lycoming SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS(31)

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SSP1776
2-22
STANDARD TORQUE
UNLESS OTHERWISE LISTED
Torque limits for propeller attaching bolts to be supplied by propeller or airframe manufacturer.
TABLE IITABLE I PIPE PLUGSBOLTS, SCREWS AND NUTS
Torcue Torque Torque
Thread In. Lbs.
Thread In. Lb. Ft. Lb. Thread In. Lb. Ft. Lb.
1/16-27 NPT 40
10 49 --1/2 900 75
1/8-27 NPT
1/4 96 --9/16 1320 110 40
1/4-18 NPT 85
5/16 204 17 5/8 1800 150
3/8 360 30 3/8-18 NPT 110
3/4 3240 270
1/2-14 NPT 160
7/16 600 50
3/4-14 NPT 230 1-11 1/2 NPT 315
THIN NUTS (1/2 DIA OF BOLT) -1/2 LISTED TORQUE
TABLE IV TABLE III
FLEXIBLE HOSE OR TUBE FITTINGSCRUSH TYPE ASBESTOS GASKETS
Thd. Pitch On Part ANGLE OF TURN Torque To Be Tightened Aluminum Copper Tube Size Th read In. Lbs. Threads Per Inch Asbestos Asbestos
(-3) 3/16 3/8-24 30 8 135° 67° (-4) 1/4 7/16-20 30 10 135° 67° (-5) 5/16 1/2-20 35
12 180° 90°
(-6) 3/8 9/16-18 35
14 180° 90°
(-8) 1/2 3/4-16 60
16 270° 135°
(-10) 5/8 7/8-14 70
18 270° 135°
20 270° 135°
24 360° 180°
28 360° 180°

NOTE TABLE V
Install all crush type gaskets except the self centering STUDS type, with the unbroken surface against the flange of MIN. DRIVING TORQUE the plug or part being tightened against the seal. Turn
Torque
the part until the sealing surfaces are in contact and Threads In. Lb s. then tighten to the angle of turn listed for the appropriate thread size. 1/4-20 15
5/16-18 25 NOTE: Lubricate ThreadsUnlessOtherwiseSpecified. 3/8-16 50
SSP1776 2-23
SERVICE TABLE OF LIMITS

PART II INTEGRAL ACCESSORY DRIVE ENGINES
SECTIONV SPECIALTORQUE REQUIREMENTS

Engine Accessories and Hardware
2-24
SERVICE TABLE OF LIMITS
PART II INTEGRAL ACCESSORY DRIVE ENGINES
SECTIONV SPECIALTORQUE REQUIREMENTS

903
904
Engine Accessoriesand Hardware
2-25
SERVICE TABLE OF LIMITS
PART II INTEGRAL ACCESSORY DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
DR.
PISTON COOLING NOZZLE
Engine Accessoriesand Hardware
2-26
PART II INTEGRAL ACCESSORY DRIVE ENGINES
SECTION V SPECIAL TORQUE REQUIREMENTS

912-
Engine Accessories and Hardware
2-27
SERVICE TABLE OF LIMITS

PART II INTEGRAL ACCESSORYDRIVE ENGINES

SECTIONV SPECIAL TORQUE REQUIREMENTS

EngineAccessoriesand Hardware
2-28

SERVICE TABLE OF LIMITS
PART II INTEGRAL ACCESSORY DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
FUEL INJECTION NOZZLE ASSEMBLY
Engine Accessories and Hardware
2-29
SERVICE TABLE OF LIMITS
PART II INTEGRAL ACCESSORY DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
　
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