Kohler Courage SV470 Service Manual page 16

Section 1
Safety and General Information
Piston, Piston Rings, and Piston Pin (Continued)
SV530, SV540
New ............................................................................................................ 88.948/88.962 mm (3.5018/3.5024 in.)
Max. Wear Limit ....................................................................................... 88.828 mm (3.4972 in.)
SV590, SV600, SV610, SV620
New ............................................................................................................ 93.928/93.942 mm (3.6980/3.6985 in.)
Max. Wear Limit ....................................................................................... 93.828 mm (3.6940 in.)
Piston Thrust Face-to-Cylinder Bore
SV470, SV480, SV530, SV540 .................................................................... 0.045 mm (0.0018 in.)
SV560, SV590, SV600, SV610, SV620 ....................................................... 0.0880 mm (0.0035 in.)
Rectifier-Regulator
Mounting Screw Torque ................................................................................... 6.0 N·m (55 in. lb.) Into new as cast hole
Speed Control
Speed Control Bracket Assembly Fastener Torque ......................................11.0 N·m (95 in. lb.) Into new as-cast hole
Stator
Stator Mounting Screw Torque ....................................................................... 6.0 N·m (55 in. lb.) Into new as-cast hole
Throttle/Choke Controls
Governor Control Lever Fastener Torque ..................................................... 7.0-8.5 N·m (60-75 in. lb.)
Valve Cover
Valve Cover Fastener Torque........................................................................... 11.0 N·m (95 in. lb.) Into new as-cast hole
Valves and Valve Lifters
3
Intake Valve Lash ............................................................................................. 0.127 mm (0.005 in.)
Exhaust Valve Lash 3 .......................................................................................... 0.178 mm (0.007 in.)
Intake Valve Minimum Lift ............................................................................. 8.9 mm (0.350 in.)
Exhaust Valve Minimum Lift .......................................................................... 8.9 mm (0.350 in.)
Nominal Valve Seat Angle ............................................................................... 45°
Intake Valve Stem-to-Valve Guide Running Clearance ............................... 0.038/0.076 mm (0.0015/0.003 in.)
Exhaust Valve Stem-to-Valve Guide Running Clearance ............................ 0.050/0.88 mm (0.0020/0.0035 in.)
Intake Valve Guide I.D.
New .............................................................................................................. 6.038/6.058 mm (0.2377/0.2385 in.)
Max. Wear Limit ......................................................................................... 6.135 mm (0.2415 in.)
2
Measure 8 mm (0.314 in.) above the bottom of the piston skirt at right angles to the piston pin.
3 Check valve lash every 200 hours, adjust as required.
1.12
2
Running Clearance
4.0 N·m (35 in. lb.) Into used hole
7.5 N·m (65 in. lb.) Into used hole
4.0 N·m (35 in. lb.) Into used hole
7.5 N·m (65 in. lb.) Into used hole