Since I started posting about this engine partway through construction this will seem a little backwards.
The governor adjuster unscrewed itself during the first test run, to correct this the gov. must be
disassembled.
The gov. is part of a cast assy. that bolts in front of the crankshaft on the left hand side. The cam gear, exhaust cam, ingnition cam , and governor are all part of this assy. A faux magneto also mounts on top of the bracket covering the ignition timer.
The 60 tooth cam gear drives a 15 tooth gov. gear and is driven by a 30 tooth crankshaft gear.
The gears are all cut from cast iron except the magneto drive gear (not shown ) which is aluminum, the original
being cast zinc.
Looking at the backside with the governor wieghts, pin ,and linkage removed.
The parts of the flyweight governor.
The front side showing cam gear and governor gear.
The complete cam bracket assembly.
1 Igniton timer switch ( vibrating coil ignition )
2 60T cam gear
3 Ignition cam, exhaust cam is behind this on same shaft
4 Exhaust cam follower
5 Governor assembly
6 Grease cups (2) to cam and gov. shafts
7 Speed control adjusting screw
Peter
The governor adjuster unscrewed itself during the first test run, to correct this the gov. must be
disassembled.
The gov. is part of a cast assy. that bolts in front of the crankshaft on the left hand side. The cam gear, exhaust cam, ingnition cam , and governor are all part of this assy. A faux magneto also mounts on top of the bracket covering the ignition timer.
The 60 tooth cam gear drives a 15 tooth gov. gear and is driven by a 30 tooth crankshaft gear.
The gears are all cut from cast iron except the magneto drive gear (not shown ) which is aluminum, the original
being cast zinc.
Looking at the backside with the governor wieghts, pin ,and linkage removed.
The parts of the flyweight governor.
The front side showing cam gear and governor gear.
The complete cam bracket assembly.
1 Igniton timer switch ( vibrating coil ignition )
2 60T cam gear
3 Ignition cam, exhaust cam is behind this on same shaft
4 Exhaust cam follower
5 Governor assembly
6 Grease cups (2) to cam and gov. shafts
7 Speed control adjusting screw
Peter
