Otto cycle
Intake
Compression
Combustion
Exhause
Rich mixture
More fuel
Lean mixture
More air
Detonation
BAD EXPLOSION
Loss in RPM
Cylinder head temp rise
Richer mixture
Lower nose
Reduce power
Pre-ignition
Cylinder ignites before spark plug
Octane rating
Resistance to detonation
100LL = blue
Jet A-1 = colourless / straw
High viscosity
Low viscosity
High = Think
Low = Thin
Jet turbine fuel
ACTUR Fuel
Fuel contaminants
Water
Air
Rust
Ice
Dirt
Black smoke =
Blue smoke =
Black =rich fuel mix
Blue = oil in piston
Carby ice types
Throttle
Fuel Vapour
Impact
Acceleration
Duel Magnetos
Power to spark plug
2 spark plugs / cylinder
Right magnetos = top left bottom right
Left magnetos = bottom left top right
Fuel system types
Carby or fuel injection system
Gravity fed or Pressure pump
Fuel injection advantages & disadvantages
Good
= Almost no icing
= More efficient
Bad
= Vapor lock
Contamination
Hydrolic breaks
Fluid = Mineral & vegetable
Callipers = push break disk
High viscosity
Thick
Cold oil
Oil pressure up
Low viscosity
Thin
Hot oil
Oil pressure down
Spark plug fouling
Oil in piston
Happens from long taxi or long idle
what is an engine Lobes
On the camshaft
Moves intake and exhaust valves
