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SECTION V -SPECIALTORQUE REQUIREMENTS
Ref. Ref.
Thread
New Old Chart Size Nomenclature Torque Limits
900 829 E-H-P 3/8-24 Connecting Rod Nuts 480 in. lbs.
AB-AC 3/8-24 Connecting Rod Bolts -TightenTo Length 2.255 -2.256
901 846 H4-H5-P-AB-AC 1/2-20 Oil Pump Shaft Nut 360 -480 in. lbs.
903 840 E-H 3/8-24 Magneto Nut (To attach drive member to magneto) -Steel Bushing 300 in. lbs.
904 839 H-P1 10-32 Screw Plate Nuts (To attach ignition cable outlet plate to magneto) 15 in. lbs.
905 853 ALL 1/4-20 Rocker Box Screws 50 in. lbs.
906 852 ALL 5/16-18 Exhaust Port Studs
(DrivingTorque) 40 in. lbs. min.
ALL 5/16-18 Nuts to Attach Exhaust Stacks
To Cylinder Head 160 -180 in. lbs.
907 830 ALL 18MM Spark Plugs 420 in. lbs.
909 862 ALL 5/8-32 Alternator Pulley Nut 450 in. lbs.
ALL 5/8-32 Alternator Nut (QuillShaft) 474 in. lbs.
910 864 AC 1/4-28 Alternator Output Terminal Nut 85 in. lbs.
911 865 AC 10-32 Alternator Auxiliary Terminal Nut 30 in. lbs.
913 857 H3-H5-P-AB-AC 1/16-27 NPT Piston CoolingNozzle in Crankcase 100 in. lbs.
914 854 AC 1/8-27 NPT Injector Nozzle in Cylinder
Head 60 in. lbs.
919 871 ALL 1/4 Hex Head and Below HoseClamps (Worm Type) 20 in. lbs.
: ALL 5/16 Hex Head and Above Hose Clamps (Worm Type) 45 in. lbs.
919-1 ALL "T" Bolt Hose Clamps -Initial TorqueRetorque After Engine Test.. 35 in. lbs. 25 in. lbs.
920 875 ALL Cylinder Head Drain Back Hose
Clamp 10 in. lbs.
928 ALL 3/8-16 Cylinder Hold Down Studs (CrankcaseDrivingTorque) 100 in. lbs.
ALL 1/2-13 Cylinder Hold Down Studs
(CrankcaseDrivingTorque) 250 in. lbs.
929 858 ALL 3/8 Cylinder Hold Down Nuts 300 in. lbs.
ALL 1/2 CylinderHold Down Nuts 600 in. lbs.
Cylinder Hold Down and Crankcase Parting Flange Nuts' TighteningProcedures -See latest edition of Service Instruction No. 1029.
931 837 ALL 2.000-16 Pinion CageRetainingNut 400 FT. LBS.
PART III GEARED ENGINES
SECTIONV -SPECIALTORQUE REQUIREMENTS
Ref. New Ref. Old Chart Thread Size Nomenclature Torque Limits
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