What are the disadvantages of a starter motor?
• Disadvantage • Lots of moving parts cause rapid wearing of teeth • Engagement of pinion is done after starter motor starts To overcome this, pinion must be engaged before starter motor rotating. As a result, pre-engage drive is developed. • Application- old vehicles 7.
What does the starter motor drive mechanism do?
• The drive mechanism has two functions: (1) To transmit the turning force to the engine when the starting motor runs and to disconnect the starting motor from the engine immediately after the engine has started and (2) To provide a gear reduction ratio between the starting motor and the engine.
How is the shunt motor used in a starter motor?
SHUNT MOTOR SERIES MOTOR Field winding connected parallel with armature Filed winding connected series with armature Shunt motor are parallel and hence low current Series motor are series so high armature current Shunt DC Motor is used in constant torque application Series DC Motor is used for high starting torque application
What are the different types of starter drives?
Types of starter drives The common kinds of starter drives used are: 1. Bendix drive (Inertia drive) 2. Improved Inertia type 3. Bendix folo-thru type 4. Pre-engagement drive 5. Sliding armature with overrunning type (Axial type) 6. Permanent magnet type.
What are the components of a no start diagnosis?
All good diagnostics start at the beginning, and the beginning of a no-start diagnosis is always the cranking circuit. The cranking circuit, in its most basic form, consists of the battery, starter and cables that connect these components.
What do you need to know about no start engine?
Valves must open, the injectors must open and the ignition must fire-all the proper time. Ignition timing on a no-start can be confusing, but it can still be tested by connecting a timing light, then watching the timing marks while an assistant cranks the engine.
How does the starter work in a 4 stroke engine?
Starter (engine) In a four-stroke engine, the third stroke releases energy from the fuel, powering the fourth (exhaust) stroke and also the first two (intake, compression) strokes of the next cycle, as well as powering the engine’s external load. To start the first cycle at the beginning of any particular session,…
What causes a car to have a no start condition?
Testing the cam and crank relationship may lead you to a slipped timing belt, the root cause of a no-spark, no-start condition. Incorrect timing is the most overlooked and misdiagnosed cause of a no-start. Perhaps you automatically think of ignition timing as the position of the crankshaft when the No. 1 plug fires.