4. Road/Response (pt 3)

Question 1

What is the normal operation of cylinders and valves in an engine?

Answer 1

1. Intake: intake valve opens and cylinder fills with air
2. Compression: air is compressed
3. Expansion: compressed air expands, return energy to engine
4. Exhaust: piston pushes gasses out the exhaust valve

Question 2

What is the operation of cylinders and valves in an engine when the Jake Brake is activated?

How does the driver engage it?

Answer 2

1. (2) Compression: the exhaust valve opens near the end of the cycle and gasses are released into the exhaust system instead of being used by the engine
2. Releases the throttle

Question 3

What is the place called that transmission retarders work?

How does the driver use the transmission retarders?

Answer 3

1. Retarder housing
2. When auto apply is on, releasing the gas pedal will engage the first level, which is about a third
3. When the brake is pushed, it engages level two and three as the brakes are pushed

Question 4

What is the transmission temp that is concerning?

What should I do if it gets too high

Answer 4

1. A consistent temp of 300 degrees or higher is danger zone
2. Turn off auto apply when heat gets concerning
3. Turn off transmission retarder when overheating