Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > iRV2.com General Discussion
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 09-17-2016, 06:31 PM   #15
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 17,222
My "Jake" engine brake isn't any noisier than another's exhaust brake, so I don't worry about those signs.

Ask a powertrain engineer and he will give an expert opinion that an "engine brake" is different than an exhaust brake. Or any other retarder technology. Whether a LEO or a judge would be that discerning is a different matter and you might have to call in that engineer to give expert testimony (if you care to take it to court).
__________________

__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 09-17-2016, 06:44 PM   #16
Senior Member
 
Dale & Mark Bruss's Avatar


 
Join Date: Jul 2005
Posts: 798
What the signs should say, "No engine brakes without mufflers." That is how Colorado signs are. Engine brakes are a safety factor as on a semi, the braking starts as soon as the foot leaves the accelerator, several milliseconds before that foot is on the brake.

But there are jerk truckers who run straight pipes with no mufflers who relish the sound when they back off on the accelerator.

I have seen "No Dynamic Brakes allowed" signs which means Prius's are breaking the law

After Jacobson started suing municipalities for says "No Jake Brakes", they have been trying to be creative. You cannot outlaw a name brand and Jake is a registered brand.

With the introduction of hybrid cars, many of the signs targeted again trucks with Jake Brakes also include the dynamic braking of a hybrid. Dynamic is engine braking.

Make mufflers mandatory and the problem would be resolves.
__________________

__________________
Dale & Mark Bruss
11 Years Full-Timing Now with a 2016 Bounder 33C
40' Travel Supreme winter residence
Lots of RV Information at www.dmbruss.com
Dale & Mark Bruss is offline   Reply With Quote
Old 09-17-2016, 06:51 PM   #17
Senior Member
 
Mr_D's Avatar
 
Solo Rvers Club
iRV2 No Limits Club
Join Date: May 2011
Location: Vancouver, WA
Posts: 24,734
The new engine brakes are muffled, the signs apply to the old, unmuffled engine brakes. Use it and don't worry about it.
__________________
2009 45' Magna 630 w/Cummins ISX 650 HP/1950 Lbs Ft
Charter Good Sam Lifetime Member, FMCA, SKP
RV'ing since 1957, NRA Benefactor Life, towing '14 CR-V
Mr_D is offline   Reply With Quote
Old 09-18-2016, 06:10 AM   #18
Registered User
 
mel s's Avatar
 
Join Date: Mar 2010
Posts: 8,778
Quote:
Originally Posted by Gary RVRoamer View Post
My "Jake" engine brake isn't any noisier than another's exhaust brake, so I don't worry about those signs.

Ask a powertrain engineer and he will give an expert opinion that an "engine brake" is different than an exhaust brake. Or any other retarder technology. Whether a LEO or a judge would be that discerning is a different matter and you might have to call in that engineer to give expert testimony (if you care to take it to court).


If you use a "engine brake" that's MUFFLED, (and makes no irritating noise).... OR when you use an "exhust brake", (which does not cause any increase in exhaust noise).... no LEO will ever know.

Therefore you will never need see a judge for disobeying one of these signs:


I believe this is what those signs actually mean:


Mel
'96 Safari
__________________
mel s is offline   Reply With Quote
Old 09-18-2016, 06:49 AM   #19
Senior Member
 
Join Date: Aug 2012
Posts: 1,035
Quote:
Originally Posted by mel s View Post


I believe this is what those signs actually mean:


Mel
'96 Safari
Of course that doesn't pertain to Harleys with absolutely no mufflers. Selective law enforcement, ain't it great?
__________________
lynnmor is offline   Reply With Quote
Old 09-18-2016, 07:08 AM   #20
Moderator Emeritus
 
Gary RVRoamer's Avatar


 
Join Date: Jan 2000
Location: Silver Springs, FL. USA
Posts: 17,222
Mufflers are required in all 50 states, so the "no engine brake" signs ought not to be needed. The public perception, however, is that engine brakes are noisy and politicians have always catered to voter perceptions more than scientific or engineering facts.

Even Harley's are supposed to have mufflers!
__________________
Gary Brinck
Former owner of 2004 American Tradition
Home is in the Ocala Nat'l Forest near Ocala, FL
Gary RVRoamer is offline   Reply With Quote
Old 09-18-2016, 08:39 AM   #21
Registered User
 
mel s's Avatar
 
Join Date: Mar 2010
Posts: 8,778
Quote:
Originally Posted by Gary RVRoamer View Post
Mufflers are required in all 50 states, so the "no engine brake" signs ought not to be needed.
Gary RVRoamer
On many, (most?), TRUCKS equipped with a "compression release engine brake", (aka: "Jake brake"), the LOUD CHATTERING MACHINE GUN LIKE NOISE released while using those brakes is NOT MUFFLED.... (even on trucks with the mufflers required in all 50 states).

However on motorhomes and pickup trucks the engine brake noise usually IS "muffled".

Mel
'96 Safari
__________________
mel s is offline   Reply With Quote
Old 09-18-2016, 08:52 AM   #22
Senior Member
 
palehorse89's Avatar


 
Newmar Owners Club
Join Date: Oct 2009
Posts: 7,411
I wonder what those Coach's sound like with those "After Market" mufflers/exhaust or straight pipe's (Have seen a lot of them on here) like those Harley Davidson bike's sound like when using the compression brake........?


__________________
2000 Newmar MADP 4060, 350ISC, Spartan MM, IFS 2011 Jeep JK, M&G Braking, 2014 MTI 27' Hog Hauler, Wireless brake control, 2006Ultra & 1989 Springer
palehorse89 is offline   Reply With Quote
Old 09-18-2016, 02:59 PM   #23
Senior Member
 
monkey's Avatar
 
Join Date: Sep 2011
Location: Arkansas
Posts: 1,980
Quote:
Originally Posted by mel s View Post
Gary RVRoamer
On many, (most?), TRUCKS equipped with a "compression release engine brake", (aka: "Jake brake"), the LOUD CHATTERING MACHINE GUN LIKE NOISE released while using those brakes is NOT MUFFLED.... (even on trucks with the mufflers required in all 50 states).

However on motorhomes and pickup trucks the engine brake noise usually IS "muffled".

Mel
'96 Safari
Actually,, all exhaust noise is "muffled" with a muffler... The loud "bad" sound (and no I don't like it any more than harleys) is because those trucks have no muffler... Our company trucks are factory,, (with mufflers) you cannot tell by sound really when the engine brake (jake) kicks on.... Those city ordanance laws were due to people in trucks running straight pipes and yes they are very loud. I wouldn't want to hear that sitting at home either.

Monkey
__________________

__________________
Monkey, pilot of a Great Dane hauler,
2015 Silverado 2500 Duramax/Alison 4x4 CrewCab 2016 Cougar 28SGS
1ST CAV
monkey is offline   Reply With Quote
Reply

Tags
brake, engine



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
"New Posts," "Today's Posts" and "List Subscriptions" Not Current l1v3fr33ord1 Forum 101 | Announcements | Member Concerns 3 02-23-2016 06:28 AM
"True" Exhaust Brake vs. "Not-True" desertvince Cummins Engines 9 07-04-2015 11:12 PM
"Check Engine Soon"/overdrive "Off" problem drsail Ford Motorhome Chassis Forum 5 08-08-2014 03:09 PM
SMI "Stay-IN-Play Duo" vs. US Gear "Unified Tow Brake" TrailerFool Toads and Motorhome Related Towing 18 04-04-2011 01:54 PM
"Stop Engine" / "Check Engine" jtharley Caterpillar Engine Forum 19 09-29-2010 04:23 PM

» Virginia Campgrounds

Reviews provided by

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 11:41 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.