Magneto Nut (To attach drivemember to magneto) -Slick 120 -300 in. lbs. S7 1/2-20 Magneto Nut (To attach drivemember to magneto) 170 -300 in. lbs.
904 839 ALL 10-32 Magneto Plate Screws (Toattach ignition cable outletplate to magneto) 15 in. lbs.
905 853 ALL 1/4-20 Rocker Box Screws 50 in. lbs.
906 862 ALL 5/16-18 Exhaust Port Studs 40 in. lbs. min. 907 830 ALL 18MM Spark Plugs 420 in. lbs. 908 860 ALL 1/8-27 NPT Fuel Pump Vent Fitting (Approx-
imately two turns beyond finger
tight) 96 in. lbs. 909 862 ALL 5/8-32 Alternator Pulley Nut 450 in. lbs. 910 864 ALL 1/4-28 Alternator Output Terminal Nut 85 in. lbs. 911 865 ALL 10-32 Alternator Auxiliary Terminal Nut 30 in. lbs. 912 ALL 5/16-24 Starter Terminal Nut 24 in. lbs.
913 857 ALL (AS APPLICABLE) 1/16-27 NPT Piston Cooling Nozzle in Crankcase 100 in. lbs. 914 854 Y-S-T-AF 1/8-27 NPT Injector Nozzle in Cylinder Head 60 in. lbs. 915 869 ALL (AS APPLICABLE) 3/4-16 Oil Filter Bolt (AC Can andElement Type) 300 in. lbs. ALL (AS APPLICABLE) 13/16-16 Oil Filter (Throw Away Type) 240 in. lbs. 874 ALL (AS APPLICABLE) 3/4-16 Converter Stud 720 in. lbs. 916 ALL (AS 3/4-18 NPT 144 in. lbs.
APPLICABLE) Carburetor Drain Plug 917 ALL (AS APPLICABLE) 1.00-14 Oil Cooler Bypass Valve 300 in. lbs. 918 ALL (AS APPLICABLE) 1 1/4-12 Oil Pressure Relief Valve 300 in. lbs.
SSP1776
1-34
SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES
SECTIONV SPECIAL TORQUE REQUIREMENTS(CONT.)
Ref. Ref. Thread
New Old Chart Size Nomenclature Torque Limits
919 871 ALL 1/4 Hex Head Hose Clamps (WormType)
and Below 20 in. lbs.
5/16 Hex Head Hose Clamps (WormType)
and Above 45 in. lbs.
920 875ALL Cylinder Head Drain Back Hose Clamps 10 in. lbs.
921 S-T Exhaust V-Band CouplingTorque Data
T-Bolt Split1/4 In. Drilled Hex Nut Coupling Size Avco Lycoming Vendor Type Locknut With Safety Wire Tube OD Part No. Part No. Torque IIn. Lbs. Torque In. Lbs.
1.75
in. LW-12093-4 MVT69183-175 65 75
2.00
in. LW-12093-5 MVT69183-200 85 75
2.25 in. LW-12093-6 MVT69183-225 85 75
2.25
in. LW-12125-3 MVT69197-225 85
3.69
in. LW-13464 U4204-55-369M 70
3.69 in. LW-14985 ANH1000902-10 70
922 ALL Turbocharger V-BandTorque Data
Turbocharger ModelNo. V-ClampPart No. V-ClampDiameter Torque In. Lbs.
: TO-473* 400500-600 6.(00in. 40-80 TEO659* 400500-685 85 in.
6.85
40-50 THO8A60* 400500-775 75 in.
7.75
40-60 TH08A69* 400500-775 75 in.
