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Old 09-15-2016, 07:18 PM   #1
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"No Engine brake"

Having a discussion with a co worker today and we have a question that Google cant seem to answer.
Do "No Engine Brake" signs apply to exhaust brakes ?
Whats your opinion on this?
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Old 09-15-2016, 07:23 PM   #2
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Quote:
Originally Posted by 92TNTRacing View Post
Having a discussion with a co worker today and we have a question that Google cant seem to answer.
Do "No Engine Brake" signs apply to exhaust brakes ?
Whats your opinion on this?
Simply.....Yes, it is a form of a "Engine Brake"........just quieter......but it could get you a ticket.......
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Old 09-15-2016, 07:23 PM   #3
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Have you ever heard a Semi when they hit their Jake Brake? That what those signs are for. Our modern Pickups with Exhaust Brake don't make any extra noise so no issue.
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Old 09-15-2016, 09:38 PM   #4
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Does not apply to my RV. My tranny is just downshifting :-)
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Old 09-15-2016, 10:58 PM   #5
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An exhaust brake is not a true engine brake
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Old 09-16-2016, 01:57 AM   #6
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Have you ever heard a Semi when they hit their Jake Brake? That what those signs are for. Our modern Pickups with Exhaust Brake don't make any extra noise so no issue.
Hmmm..I don't know about that. I can hear mine. But like you say, still pretty quiet. I think it's probably going to depend on the cop. If you did get a ticket, probably going to be up to the judge- who may not want to argue.
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Old 09-16-2016, 03:55 AM   #7
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Diesel engine braking - Engines - FMCA Motorhome Forums

I can hear mine also.........with my side window open......agree, that most will never encounter a problem when using a exhaust brake where signs are posted, but they are a form of a "Engine Brake", and the is exactly what is what is on most of those signs and what the OP asked. I have seen signs that say "No Compression Brakes"
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Old 09-16-2016, 05:57 AM   #8
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Wouldn't worry about it.... nobody's going to notice an exhaust brake and from what I can tell all the big trucks ignore it and use them anyway.
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Old 09-16-2016, 06:14 AM   #9
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Technically no.
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Old 09-16-2016, 06:33 AM   #10
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Quote:
Originally Posted by 92TNTRacing View Post
Having a discussion with a co worker today and we have a question that Google cant seem to answer.
Do "No Engine Brake" signs apply to exhaust brakes ?
Whats your opinion on this?
92TNTRacing
They do not.
Those signs are there to prohibit the use of compression release engine brakes, (aka: Jake Brakes) because of the noise they produce.

While both engine brakes and exhaust brakes both slow the vehicle and save wear of the service brakes... when being used engine brakes can be very loud/noisy while exhaust brakes are relatively silent/quiet.
See: https://www.reference.com/vehicles/e...89c9ab09dd9bb1

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Old 09-16-2016, 06:40 AM   #11
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92TNTRacing
They do not.
Those signs are there to prohibit the use of compression release engine brakes, (aka: Jake Brakes) because of the noise they produce.
Most of the noise concerns are about dump truck drivers with "unmuffled compression brakes". The compression brake on my MH is well-muffled and is hardly noticeable unless you are directly behind it. I've yet to worry about any "no engine brake" signs and have never been questioned about doing so.
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Old 09-17-2016, 09:10 AM   #12
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Exhaust brakes aren't engine brakes. Not even in the same league. Signs started out saying "No Jake Brake" or similar. Jacobs Vehicle Systems took offense, and the wording was changed.
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Old 09-17-2016, 09:26 AM   #13
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Some good reading and some history.......
The Straight Dope: What are "jake brakes" and why are they prohibited in some locations?



Quote:

All of the brake systems made by Jacobs Vehicle Systems can accurately be called "jake brakes," not just their compression release engine brakes.
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Old 09-17-2016, 12:50 PM   #14
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No problem with exhaust brakes!
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