Powerplant Flashcards
What is the total amount of mixture drawn into a cylinder called?
The charge
Top dead centre to bottom dead centre is described by what phrase or term?
Stroke
What are the four strokes called of a 4 stroke engine?
Induction
compression
power
exhaust
Ineffective crank angle can be described as?
The top 90 degrees and the bottom 90 degrees of the crank angle as it only moves a small amount
Describe inlet valve lead
Inlet valve opens early to increase the speed of exhaust when the ineffective crank angle is at play
Why would you increase the number of cylinders
To increase the mass of charge combusted
Radial engines have the potential of multiple banks
It is an odd number
the core of the crank can be described as the
journal
The stroke or height is
Throw
Cam lobe does what and can be found where
On the cam shaft rotating to actuate the push rods up and down
A tap it and adjusting nuts are used to adjust what
The spacing between the rocker arm and the valve stem
How does the starter motor connect to the crank shaft?
The starter overrun clutch and flywheel gear
When operating the starter a light should come on, after how long should you turn the starter off
Thirty seconds
A magneto has two circuits or windings what are they called
Primary windings and secondry windings. these are either side of a transformer, the secondary windings deliver power to the spark plugs. There is a engine controlled spinning magnet to generate the electron movement and a cam to activate a breaker
When Magneto rotation is slow for example during starting, there may not be sufficient high tension voltage. Name three methods spark augmentation
Impulse coupling
low tension booster
high tension booster
