around my city there is signs the say no engine breaking or engine breaking prohibited. what does that mean?
2006-06-16 08:48:16 · 3 answers · asked by Techman2 4 in Cars & Transportation ➔ Other - Cars & Transportation
Engine braking is when the vehicle is rolling at a faster speed than engine RPM's are turning. Engine braking is usually done by downshifting the vehicle to a lower gear then it typically would be in.
An example of engine braking is say you have an automatic.. Your doing 60 MPH in on the freeway, and you see traffic up ahead is slowing down... so you put the transmission down into a lower gear, say from drive down to 3rd, you would be "engine braking" What is occurring is your wheels are spinning faster than the engine RPM, and what you will notice is that when you put your vehicle into a lower gear you will hear the motor "whirl" and rev up.
Engine braking is usually most commonly used in manual transmissions. Its very similar to downshifting, you just do it early so that the engine is actually used to slow the vehicle down. Hope this helped to answer your question. If you would like a more detailed answer please feel free to email me and I would be glad to tell you more.
Thanks for the good questions, keep them coming!
Edit: The semi braking system they mention above me are a special form of engine braking, often refered to as a "Jake Brake". In this system the valves on cylinders of the engine actually open differently/delayed to apply more "braking" power. It helps to save brakes, and keep them cool when towing heavy loads... often you hear this by that "BRR-RRR-RR-RR-RRR" noise that you often hear with semi's when they slow down. But engine braking can be done with any engine that is coupled to a load.
Please read the wikipedia link below. It will explain exactly how a jake brake works.
2006-06-16 08:58:03 · answer #1 · answered by calcdffirefighter 3 · 4⤊ 0⤋
What Is Engine Braking
2016-09-28 09:49:34 · answer #2 · answered by teresa 4 · 0⤊ 0⤋
Shifting down to a lower gear when slowing down such as nearing an intersection or steep downward hill, causing the transmission to drive the engine rather than vica-versa. This causes the engine to make a louder than normal noise or roar, depending on the severity of the deacceleration.
2006-06-16 09:07:12 · answer #3 · answered by coleluby@sbcglobal.net 1 · 0⤊ 0⤋
The signs are refering to the loud diesel engine brake. It's loud enough to wake people up at night, so many cities ban the use of them.
Also, many cities now ban trains from blowing their horns, or require that they do it quietly, at intersections for the same reason
2006-06-16 09:51:17 · answer #4 · answered by Trump 2020 7 · 0⤊ 2⤋
We have them on our Semis...they use the engine to slow down the truck without using the brakes. you can get them installed in any diesel truck. Anyway ya i suppose that would be the only reason i could see that they would be illiegal...because they are loud...which i guess they are.
2006-06-16 08:55:49 · answer #5 · answered by that_one_guy 3 · 0⤊ 1⤋
when engine moving in fast need to be refill brakng oil..for troubleshooting guide for tecumseh engines visit us..
2014-09-18 00:34:25 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It a sign for truckers.... there trucks have a tool that is use to slow the truck without using the break. It is load and they dont want them using them in city limits
2006-06-16 08:52:34 · answer #7 · answered by Eric J 2 · 0⤊ 1⤋