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Propeller Retaining Nut
450 -500 FT. LBS.
Accessory Drive Shaft Nut 75 -125 FT. LBS.
Crankshaft Gear Retaining Nut 150 FT. LBS.
Supercharger -Intermediate
Drive Shaft Nut 75 FT. LBS.
Supercharger -Impeller Locknut (600 in. lbs. Plus Torque Req'd. to Reach Next
Locking Slot)
1/4-28 Thin Slotted Nut ( 38 in. lbs. Plus Torque
Req'd. to Reach Next
Locking Slot)
Ring Gear Assembly -
Attaching Nuts 360 in. lbs.
Reduction Gear Assembly -
Attaching Nuts 300 in. lbs.
1/4-18 NPT Carburetor Drain Plug 120 -144 in. lbs.
1/8-27 NPT Carburetor Drain Plug 50 -60 in. lbs.
10-32 Screws (To attach Accessory
Drive Coupling Plate) 25 -30 in. lbs.
SECTION V -SPRINGS
Length COMP. LOAD
Nomenclature Avco Lyc. Wire At. Comp. Mfr. Mfr. Serv.
Part No. Dia. Length Min. Max. Max.
Outer Valve Springs
(Angle) 68326 .177 1.46 in. 103 lb. 111 lb. 100 lb. min.
Outer Valve Springs
(Angle) LW-11796 .182 1.43 in. 114 lb. 124 lb. 111 lb. min.
Auxilliary Valve 68328 .142 1.33 in. 75 lb. 83 lb. 72 lb. min.
Springs (Angle) LW-11797 .142 1.33 in. 73 lb. 83 lb. 70 lb. min.
Check Valve Springs
Avco Lycoming
Part Numbers Free Length
654-B ....... .031 1.03in. .741b. .94 lb. .69 lb. min.
73761 2.065 .041 1.03 in. 3.15 lb. 3.35 lb. 3.10 lb. min.
Oil Pressure Relief
ValveSpring
Avco LycomingPart Numbers Identification Dye Free Length
68542 None 2.38 .067 1.66 in. 15 lb. 17 lb. 14 lb. min.
LW-14029 White 2.28 .072 1.66 in. 20 lb. 22 lb. 17 lb. min.
60476 None 2.38 .047 1.44 in. 7.15 lb. 7.65 lb. 7.00 lb. min.
66920 None 2.54 .047 1.44 in. 8.35 lb. 8.85 lb. 8.20 lb. min.
74596 None 2.96 .047 1.44 in. 11.65 lb. 12.15 lb. 11.50 lb. min.
SSP1776 3-49
SERVICE TABLE OF LIMITS PART III GEARED ENGINES
SECTIONV -SPECIALTORQUE REQUIREMENTS
Ref. Ref.
Thread
New Old Chart Size Nomenclature Torque Limits
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本文链接地址：Lycoming SERVICE TABLE OF LIMITS AND TORQUE VALUE RECOMMENDATIONS(51)
