Starters

Question 1

Connecting batteries in parallel does what?

Answer 1

Increases amperage

Question 2

Connecting batteries in series does what?

Answer 2

Increases voltage

Question 3

Minimum life cycle of starters are what

Answer 3

4 years 7000 start cycles

Question 4

What is the ratio between ring gear and pinion in a gas engine

Answer 4

Between 10-15:1

Question 5

What is the ratio between ring gear and pinion in a diesel engine?

Answer 5

18:1-25:1
Most common in diesels is 20:1

Question 6

What are the 3 types of electric starters?

Answer 6

Reduction drive-uses extra gear between armature and drive mechanism
Direct drive-engages flywheel through pinion
Planetary gear reduction drive- uses planetary gearset to multiply torque. Reduces weight by 50%

Question 7

What causes low voltage burnout?

Answer 7

Low battery voltage

Occurs when excess amperage flows through the starter causing the motor to burnout prematurely. When battery voltage is low the starter uses more amperage to rotate

Question 8

What type of motor is an air start motor?

Answer 8

Vane type

Question 9

What test is used to determine if a starting system has corrosion or faulty switch contact points without disassembly?

Answer 9

Voltage drop test

Question 10

What is an overrunning clutch

Answer 10

Stops starter from spinning when engine starts

Question 11

Greatest amount of torque in a starter is when?

Answer 11

0 rpm