Author: Aynslie Brown

Wednesday February 4^th Lecture Notes Aynslie

• Chapter 4,5,6

Update

• Engine has been dropped – Removing 3 bolts was crucial
• The motorcycle wheels have been measured and new wheels have been ordered – purchased 3 rims
• Wheel team also employed the dial caliper
• Wheel time also undid the screws and kept records
• The engine has been partially taken apart
• The Three Tree is being taken apart
• The front wheel is also being removed
• The fasteners have been sorted – will need drill new holes because some of the previous threads have been completely stripped due to the incorrect use of different types of fasteners

Book Analysis

• Chapter 4 (approximately 15 min per chapter)
• Technical Material Included in the Chapter
• Machinist hammer is not a mallet
• Cold chisel = solid piece of metal
• Tire Irons – needs three to properly remove the wheel
• WD40
• Impact driver – tool select which direction Right or Left and then hit the impact driver with a hammer – can often rotate a fastener around 10 degrees – set for left if want to loosen a fastener
• Point File – hardened steel needs to be hardened for filing down the points (which can be made of Tungsten)
• Narrator uses a checklist for tools
  • Also, carries Walden – interesting choice includes romantic anti-technology ideals
• Narrator emphasizes the value of practical skills and understanding the technology not just following technology.
• See the difference in classical vs romantic debate (Phaedrus = romantic Narrator = classical)
• The shop manual and troubleshooting guide can be found on Canvas
• John and Siliva are riding a BMW – very reliable and very expensive
  • BMW is horizontally opposed, decreased the sound and vibrations from the engine
• Chapter 5
• Technical References First
• Shims = mentioned – solution quite clever –
  • We have phosphorous bronze for our shims
• Handle bars need to be tightened – solution use the shims so then when attach – attach around the whole handle bar. Shim increases diameter
• Box ends = wrenches that are open with 6 or 12 point – cages the nut
• Analysis
  • Beer can as a shim story – see the difference in values (big focus of the book + philosophy: what is valued, how do we value something)
  • In the narrator’s mind beer can solution = good because practical
  • John’s mind cannot tarnish his BMW with beer can, but also genuinely doesn’t know and understand why a beer can is a smart fix
• Son does not receive treatment for his mental illness – narrator’s solution to mental illness = going on adventure
• Chapter 6
• Technical Information
• Cotter pin = pin that locks a washer and goes through ad secures the washer to an even further extent – person pulls the ends out to prevent from moving even further
• Analysis of Book
• Narrator recognizes Phaedrus can go too far + over load and become too analytical
  • Suffers from dual personalities – only through electro shock did the Narrator come back into existence
• Phaedrus often thinks on a really high conceptual level, but less practical – unlike the narrator.

Monday February 2^nd Lecture Notes Aynslie

Book Discussion Covering Chapter 2 + 3

Chapter 2

• Technical parts of a motorcycle mentioned: seizure (excessive heat causes piston to get hot because the barrel cannot expand)
• Spark plugs, points, kick starter, carburetor (made up of two pieces that float =- later on switch to mono block – 1 part)
• Points – 2 pieces of mental (tungsten, material depends) that push together + separate. You can adjust the timing of the ignition through the points. When the points open = spark, so can rotate the points and alter time of ignition – need timing to be just right
• Tappets – hardened steel on the cam
• Push rod – composed of alloy one goes up and one goes down – 1 push rod opens the intake + 1 push exhaust valve – dependent on the two movements occurring
• Tappet adjustment = how much play in the motorcycle that you want – always aim for a little bit of give due to thermal expansion, use a gauge of 1/1000 in- if incorrectly done the noise can be heard sounds like knocking. There is a happy medium.
• If the wrong type of fasteners is put on (Whitworth, Imperial, Metric, etc.) can dig into the threads and prevent disassembly.
• Details make a big difference, must take time
• Classic motorcycle problem (one we will likely run into) is the float gets stuck which causes all the gas to go on the ground.
• Chisel – flat head
  • Cold chisel = solid piece of metal – hit with a hammer – nothing absorbs the impact – misuse it can have major consequences.
• Cooling fins – air flows over and cools (air cooled)
  • Also, our engine is naturally aspirated
• Motorcycles = air cooled 25%-30% efficient, 1/3 energy lost heat 1/3 heats up engine
  • Large motorcycles are water cooled
• More power = more heat = more fins + surface area due to the greater power. More explosions per time = more power = more heat
• What Need to Learn
  • Need to solve own problems
  • Pay close attention – can’t miss things
  • Need to make sure motorcycle fasteners are correct
  • Use lock washers on our motorcycle
  • A lot of simple things are causes of far bigger problem
• Chapter 2 Technical Continued
• Overheard valve– intake air overhead – leads to higher compression ratio – leads to increased efficacy
  • Diesel engine = more efficient 40%
• Higher compression increases efficiency which leads to detonation – raises temperature and causes knocking
• Overhead cam – our motorcycle not have – we have overhead valve (O.H.V)

Chapter 3  

• Speedometer – cable from rear to handle bars faster = more turns
• Magnet pulls the needle to show the speed
• Tachometer = RPMS’s measures speed
• Our motorcycle’s top speed = 6000 RPM

Book Analysis (Chapter 2 + 3)

• Narrator changes his opinion on ghosts to explain scientific ghosts, how the world has changed through science
• Does gravity exist? Is the theory correct? Use particles as example? Is light a wave and a particle?
  • Gravity, light, etc. all theory – not entirely known – if it really exists because a physical object doesn’t move
  • Eistein liked that the objects affected each other, without people knowledge does not have an impact

Groups

1. Handlebars, Fork, Wheel
   1. Alex
   2. Vanessa
   3. Chloe
   4. Abby
2. Top + Bottom End
   1. Nate, David, Ben, Eugene
3. Clutch, Oil, and Fasteners
   1. Zane
   2. Aynslie
   3. Halla
   4. Emily
4. Electrical
   1. Diana
   2. Connor
   3. Rashmiya
   4. Amy