60 Tiger Cub Motorcycle

FRS 106, Michael Littman – Spring 2019

Week 2: Tuesday

Question about last lab –

Blue Motorcycle: What needed to be detached from the motor to remove it from the frame?

  • Oil lines on the bottom (feed and return) and on the head (two circles)
  • gas line and carburetor (along with the slide)
  • electrical wiring/points system
  • clutch cable
  • valve covers
  • one of the studs (removed with trick turn: tightening of two different nuts, then unscrewed together)
  • engine bolts
  • spark plug wire

Sandblasting- sandblast gun shoots air over a tube which creates a vacuum, and sand thus gets drawn up the tube and then ejected outwards

  • team covered threads where axles go through with tape (on wheel hubs)
  • sandblasting cleans up rust and takes off paint

Model T Engine model

  • When lightbulbs go off, the valve closes
  • after an explosion, fuel and air come together, which generates heat (raising the pressure by a factor of 7), and the powerstroke happens right after the spark, so the piston gets pushed down, causing the crank to turn
    • What is left in the chamber? C6H18 + O2 –> CO2 + H2O
  • orange valves let hot gas out through exhaust pipe, and white valves let cool gas in from the carburetor
  • in a Model T, there are 4 cylinders, so there is always one running, which keeps the car going

Reading Discussion

  • Discussion Leader: Owen
  • Chapter 3- Thunderstorm, introduction of ghosts/Phaedrus
    • Speedometer measures how fast one is going based on speed of wheel rotations
    • Tachometer refers to rotations per meter of the engine- measures the crankshafts
  • Chapter 4- What to bring on a motorcycle roadtrip, transition back to roadtrip during the super cold temperatures
    • Cotter pins: piece of metal to help put something in place
    • cold chisel- metal used to remove things that are stuck
    • feeler guage- thin piece of metal to see how close two things are

Author: Ben Johnston

Ben Johnston is Senior Educational Technologist in the McGraw Center for Teaching and Learning, a unit of the Office of the Dean of the College, Princeton University.