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|20th June 2008, 21:13||#1|
Join Date: Jan 2008
Thanked: 3 Times
Signs saying "No engine brakes" - Why?
I have seen sign boards that say "Do Not Use Engine Brakes" on quite a few roads on the US. I have never really understood this but my closest guess would be noise pollution? Can anybody elaborate?
|20th June 2008, 21:57||#2|
Join Date: Feb 2004
Location: NYC / BOM
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noise & slip
Yes, you've understood correctly. That's a warning for trucks.
It's mostly due to the loud noise that engine brakes produce when engaged but the warning may also be displayed in case there's a chance of slipping (eg. icy roadways).
For technical details on engine brakes, you can look up Google.
Ever heard a sudden loud noise - like a machine gun going off inside your head - while driving on the freeway? That's the semi in the next lane using his engine brake.
|21st June 2008, 00:27||#3|
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Join Date: May 2005
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Here are couple of you tube videos on jake braking trucks.
|21st June 2008, 19:49||#4|
Senior - BHPian
Join Date: Oct 2007
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Engine brakes with trucks is something to do with opening the exhaust valves to TDC to slow down the engine hence reducing the brakes without actually applying the brakes.
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