What is the purpose of the timing marks?
A timing mark is an indicator used for setting the timing of the ignition system of an engine, typically found on the crankshaft pulley (as pictured) or the flywheel, being the largest radius rotating at crankshaft speed and therefore the place where marks at one degree intervals will be farthest apart.
How are tick marks used in a timing diagram?
To associate time measurements, you show tick marks online the bottom part of the frame. The example below shows that the Login event is received three time units after the start of the sequence. To show relative times, you can mark a specific instance in time using a variable name.
Which is an example of a timing diagram?
The figure below shows an alternative notation of UML Timing diagram. It shows the state of the object between two horizontal lines that cross with each other each time the state changes. Major elements of timing UML diagram – lifeline, timeline, state or condition, message, duration constraint, timing ruler.
How are lifelines represented in a timing diagram?
Lifeline on the timing diagrams is represented by the name of classifier or the instance it represents. It could be placed inside diagram frame or a “swimlane”. Timing diagram could show states of the participating classifier or attribute, or some testable conditions, such as a discrete or enumerable value of an attribute.
When does a timing diagram become a hindrance?
This is typically where a timing diagram goes from being a help to being a hindrance. If you’re lucky, the timing diagram designer will have found a way to cram as much text into the page as possible. If you’re not lucky, it will only reference numbers that lead to footnotes at the bottom of a table four pages before or after the diagram itself.
To associate time measurements, you show tick marks online the bottom part of the frame. The example below shows that the Login event is received three time units after the start of the sequence. To show relative times, you can mark a specific instance in time using a variable name.
What are the bright links on a timing chain?
Locate marks or “bright” links in your timing chain. These links are brighter than the other links and are used to align your engine. Set your engine to top dead center. To get your engine to top dead center, line the bright links on the timing chain up with the marks on your camshaft and crankshaft gears.
What should be included in a timing diagram?
Each state or value transition can have a defined event, a time constraint which indicates when an event must occur, and a duration constraint which indicates how long a state or value must be in effect for. Timing diagram should always be consistent with the relevant sequence diagram and state machine.
Where are the timing marks on a spark plug?
This indicates the number one cylinder is at Top Dead Center or “TDC” on the compression stroke. Locate the number one spark plug wire on distributor cap and make a tic-mark of this position with a marker pen on the distributor housing. Remove the distributor cap and observe the position of the rotor.