PISTONS - RINGS - RODS Assembly Install    piston,    connecting    rod,    and    dipper.        Piston identification mark "F" and notch at top of piston must be toward  flywheel  side.    Torque  connecting  rod  screw  per Table  No.  4.    Move  connecting  rod  back  and  forth  on crankpin to be sure it is free. Install Piston and Rod Assembly All Models Except 300000 and 320000 Place the connecting rod and piston assembly with rings compressed into the cylinder bore, Fig. 10.  Push piston and  rod  down  into  the  cylinder.    Oil  the  crankpin  of  the crankshaft.  Pull the connecting rod against the crankpin and assemble the rod cap so assembly marks align.  Fig. 11. NOTE:  Some rods do not have assembly marks as rod and cap will fit only in one position.  Use care to ensure proper installation. Fig. 10.  Install Piston Assembly NOTE:    Some  rods  may  have  flat  washers  under  cap screws; remove and discard prior to installing rod. Fig. 11.  Connecting Rod Installation Assemble the cap screws and screw locks with oil dipper (if used).  Tighten cap screws to  torque  shown  in  Table No. 4.  Fig. 12.  Rotate the crankshaft two revolutions to be sure rod is correctly installed. If rod strikes, connecting rod has been installed wrong or cam  gear  is  out  of  time.    If  crankshaft  operates  freely bend screw locks against screw heads.  Fig. 12. Fig. 12.  Bending Screw Locks TABLE NO. 4 CONNECTING ROD CAP SCREW TORQUE BASIC MODEL SERIES AVERAGE TORQUE ALUMINUM CYLINDER Inch Pounds Kilogra m Meter Newton Meter 6B, 60000 100 1.2 11.3 8B, 80000 100 1.2 11.3 82000, 92000, 110000, 111000 100 1.2 11.3 100000, 130000 100 1.2 11.3 140000, 170000, 190000 165 1.9 18.7 250000 185 2.1 21.0 CAST IRON CYLINDER Inch Pounds Kilogra m Meter Newton Meter 5, 6, N, 8 100 1.2 11.3 9 140 1.6 15.8 14 190 2.2 21.5 19, 190000, 200000 190 2.2 21.5 23, 230000 190 2.2 21.5 240000, 300000, 320000 190 2.2 21.5 NOTE: Tighten rod screws securely.  After tightening rod screws,    rod    should    be    able    to    move    sideways    on crankpin  of  shaft.    A  torque  wrench  must  be  used  to prevent  loose  or  overtight  cap  screws  which  results  in breakage and/or scoring of rod.  Fig. 12. 4