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View Full Version : Who runs an exhaust brake?


South Florida Lawns
01-11-2009, 03:16 PM
We just put a Jacobs exhaust brake in my friends 2006 3500. Its an automatic trans and he say's it helps out a lot when driving through the mts. Do any of you guys use one?

WH401
01-11-2009, 03:48 PM
I have the same one on my 06 Dodge 3500 w/ the auto and it definitely makes a big difference, in any kind of driving. Most of the time I can slow down with only having to slightly tap the service brakes or only having to push the pedal enough so the lights will come on. It work's real well with my 4.10's as it keep's the RPM's up higher than the 3.73's. Make's a big difference when pulling a load on a trailer as well, the amount it slows down doesn't really decrease based on the size of the load and I hardly ever use the service brake's as much. Sure makes the tailgater back off when all of sudden you slow down with considerable speed and no brake light's.

Only thing I would change would be I would buy the 6 speed. Not because it doesn't work well with the automatic, because it does. But because with the 6 speed, I could really stop this thing on a dime.

LawnTamer
01-11-2009, 03:56 PM
I seem to have an exhaust brake for my love life. Especially after eating Mexican. It works too good, takes our love life from the fast lane to 0 in about 2 seconds. :laugh::laugh:

Gravel Rat
01-11-2009, 05:18 PM
I have one on my 03 F-450 6.0 it never works the stupid electronic controller doesn't work half the time. I don't need it I can decend 10-12% grades without it you just know how to drive in the hills. Anybody that depends on a exhaust brake or a JAKE brake to decend hills is a accident waiting to happen.

A exhaust brake is to assist in braking if you can't or don't have the skill to decend steep grades with the trucks brakes and using the transmission your in big trouble.

As for a exhaust brake they do work some but not all that great. If its a remote mount exhaust brake like on a 6.0 Ford or a Duramax you have lots of lag time. You have 4-5 feet of exhaust pipe to fill up before you get back pressure. Most of the Cummins are mounted close to the turbo or the older ones are so you get the back pressure quicker but your exhaust valves also tend to float more. Have weak valve springs watch out.

The best braking system is a transmission brake something that helps ****** the transmission I think the Allison has it and the tow haul mode in the Fords are simillar. A Telma brake is the best but its too large for a P/U truck. You put a Telma brake on a P/U you would give the windshield a lip lock.

Like I said never get dependant on a exhaust brake because one day it may not work and your going down a 12% grade and your in big chit because your going too fast.

Oh ya anything less than a 10% grade is for sissies :laugh:

TXNSLighting
01-11-2009, 05:44 PM
I have one on my 03 F-450 6.0 it never works the stupid electronic controller doesn't work half the time. I don't need it I can decend 10-12% grades without it you just know how to drive in the hills. Anybody that depends on a exhaust brake or a JAKE brake to decend hills is a accident waiting to happen.

A exhaust brake is to assist in braking if you can't or don't have the skill to decend steep grades with the trucks brakes and using the transmission your in big trouble.

As for a exhaust brake they do work some but not all that great. If its a remote mount exhaust brake like on a 6.0 Ford or a Duramax you have lots of lag time. You have 4-5 feet of exhaust pipe to fill up before you get back pressure. Most of the Cummins are mounted close to the turbo or the older ones are so you get the back pressure quicker but your exhaust valves also tend to float more. Have weak valve springs watch out.

The best braking system is a transmission brake something that helps ****** the transmission I think the Allison has it and the tow haul mode in the Fords are simillar. A Telma brake is the best but its too large for a P/U truck. You put a Telma brake on a P/U you would give the windshield a lip lock.

Like I said never get dependant on a exhaust brake because one day it may not work and your going down a 12% grade and your in big chit because your going too fast.

Oh ya anything less than a 10% grade is for sissies :laugh:

O dear....

WH401
01-11-2009, 05:55 PM
O dear....

My thoughts exactly.:rolleyes:

nosparkplugs
01-11-2009, 06:13 PM
I have one on my 03 F-450 6.0 it never works the stupid electronic controller doesn't work half the time. I don't need it I can decend 10-12% grades without it you just know how to drive in the hills. Anybody that depends on a exhaust brake or a JAKE brake to decend hills is a accident waiting to happen.

A exhaust brake is to assist in braking if you can't or don't have the skill to decend steep grades with the trucks brakes and using the transmission your in big trouble.

As for a exhaust brake they do work some but not all that great. If its a remote mount exhaust brake like on a 6.0 Ford or a Duramax you have lots of lag time. You have 4-5 feet of exhaust pipe to fill up before you get back pressure. Most of the Cummins are mounted close to the turbo or the older ones are so you get the back pressure quicker but your exhaust valves also tend to float more. Have weak valve springs watch out.

The best braking system is a transmission brake something that helps ****** the transmission I think the Allison has it and the tow haul mode in the Fords are simillar. A Telma brake is the best but its too large for a P/U truck. You put a Telma brake on a P/U you would give the windshield a lip lock.

Like I said never get dependant on a exhaust brake because one day it may not work and your going down a 12% grade and your in big chit because your going too fast.

Oh ya anything less than a 10% grade is for sissies :laugh:


For about a week I thought you had turn over a new leaf, you did good keeping it clean for a WEEK.

The exhaust break will always work better on a In-line diesel, were a V8 each side of the block is pulling against each other.

Anyone that would depend solely on an exhaust brake is an idiot. Dynamic braking is when you use several methods or tools to bring a vehicle to a controlled speed or complete stop. Depending on the diesel engine a transmission brake might be a better option. The enemy when stopping is heat a transmission does not like heat period, so it would only be logical a exhaust brake would be a great option to tearing your transmission out.


Depending on the transmission
A good transmission brake should include a entirely new valve body on that has been custom built. Their are many programmers that adjust line pressure, however their still limited buy the OEM stock internals, and torque converter. I would be very careful using your automatic slushbox to assist in stoping a load. All your doing is transferring kinetic energy back into the transmission were it's converted to heat:dizzy:

Tow haul mode is not a OEM transmission brake, you must purchase a ATS or Suncoast transmission programmer, what ever brand you choose.


these newer transmissions are amazing, and can take some abuse; however the good old manuals are made for stopping.


So for use low life lawn care professionals the exhaust brake is a great tool for use, I'm scared of hills:laugh:

ConstSvcs
01-11-2009, 09:21 PM
My FRR has one (471 cu.in. inline Isuzu diesel) and it work great. The truck also has a 6 speed manual trans. Sure saves on service brake wear. A real must have for heavy loads.

My '03 GMC Sierra 2500HD has the above mentioned transmission brake as part of the Allision package. Yes it is activated in the tow/haul mode but is no comparision to the deceleration ability of the exhaust brake in the FRR.

Gravel Rat
01-12-2009, 04:12 AM
Like I said there are hills in my area you go down in 2nd gear (manual transmission) if your heavy. See lots of tourist during the summer with overheated brakes on the verge of flames. If the wheel seal blows then you have flames (rear drum brakes). Trucks with disk brakes the wheel seal does blow and it gets all over the brake rotors. Some people I have asked do you have a fire extinguisher and they say why. When you can see front brake rotors glowing you know the brakes are hot :laugh:

A few guys have gotten their trailer brakes so hot the grease pours out of the hubs like water :hammerhead:

A P/U trucks are so severely underbraked for what they are rated for are you surprised people have problems with over heated brakes and warped rotors.

The little cabover trucks with Isuzu power always have had good holding exhaust brake same with Hino but the International 466 is pretty feeble and the 8.3 ISC Cummins isn't any better.

The Mercedes MB4000 in Sterling and Freighliner trucks is really bad they use a turbo brake and it doesn't hold back worth ****

Is this what you guys want your 5.9 Cummins to sound like :laugh:

www.youtube.com/watch?v=Z6tWChjYNfg&feature=related

Drove a old Ford with 400 Cummins the Jake was louder than this one.

This is the best sound a Cat with Jakes

www.youtube.com/watch?v=eItFytoG27U&feature=related

ALLPro Landscaping
01-12-2009, 04:18 AM
I almost put one in my 04 6.0, I got it for a great price, I know alot of guys have them and they love it. I know one guy has a 6.0 and put one it and he replaced his brakes once, in his truck and hes had it for five years, and all he does his tow a fith wheel. the only reason why I havent put it in is cause I dont feel like spending the 700 bucks they want for a converter since it came out of a manual.

Gravel Rat
01-12-2009, 04:27 AM
Mine is a BD brake and the controller than senses throttle position isn't accurate. I have a manual 6spd so I don't have to worry about a torque converter.

To make a exhaust brake effective it has to be as close to the turbo as possible and you have strong valve springs.

02DURAMAX
01-12-2009, 07:01 AM
I have one on my C4500 and its great!

bobcat_ron
01-12-2009, 11:03 PM
I have a BD in my F450 and I can't stand it, it never works in the cold weather and it will only work 3 times and then it stops. But when it does work, it's fun.
But I want a Dodge 5500 instead.

DUSTYCEDAR
01-12-2009, 11:29 PM
LOUD YOU SAY
http://www.youtube.com/watch?v=yGA6i6DE6fE&feature=related

CrystalCreek
01-13-2009, 12:20 AM
OK. I love the Jake just as much as the next guy. But will putting one of these knock off butterfly exhaust valves really make a pick up sound like a Peterbilt. I would think it would sound like a big woosh of air. Please inlighten me. If I could make my Ford diesel sound like those big petes, than I would do it in a heartbeat.

nosparkplugs
01-13-2009, 12:45 AM
OK. I love the Jake just as much as the next guy. But will putting one of these knock off butterfly exhaust valves really make a pick up sound like a Peterbilt. I would think it would sound like a big woosh of air. Please inlighten me. If I could make my Ford diesel sound like those big petes, than I would do it in a heartbeat.

need the in-line 6 or 8 bangers for that legendary sound

DUSTYCEDAR
01-13-2009, 01:14 AM
If you want it to sound like a pete buy a pete
now way in hell to make a pick up sound like that

FordLawnLandscape
01-13-2009, 06:16 AM
Discard anything Ferrit Mouse said. They'll save u ALOT of money on brake jobs ! Have a factory Jake on my NPR , I know the aftermarket brakes are prob. better but I love mine. Drive w/ it on all the time.

lawn king
01-13-2009, 06:52 AM
My 2003 npr diesel has one, it works very well!

dura to the max
01-13-2009, 06:09 PM
some of the engines im on have them, definately help on a large/heavy load. they'll just about stop the engine w/o hitting the brakes.

Gravel Rat
01-13-2009, 07:10 PM
Amazing how many people think a exhaust brake is a JAKE brake there isn't a JAKE brake on any medium duty engines. The smallest Cummins with a JAKE is L-10 ISM M-11. Isuzu offers a exhaust brake and thats it not a JAKE brake a Exhaust brake. A Exhaust brake is a potato shoved into the exhaust pipe.

I pizz my pants laughing at the flat landers still don't know what steep grades are. A exhaust brake on 10% grades does beep all nothing you barely feel it. Some engines all it does is make a hissing sound and your not slowing down.

Saving brakes you live on flat land what is the steepest grade you guys drive on everyday if I lived in your area I probably wouldn't even touch my brakes.

Like I said if your dependant on a exhaust brake to help slow your truck then your over weight simple as that. Any engine brake is tough on the engine beit a JAKE or Exhaust brake. With a exhaust brake if the valves start floating you can run a chance of popping a valve keeper the valve drops and punches a hole through your piston. Why do you think you need strong valve springs so you keep enough tension to prevent dropping a valve.

Engines with hydraulic lifters don't do well with exhaust brakes. The older 12 valve Cummins with solid lifters do better I think all the Isuzu engines run solid lifters. If you have to do valve adjustments or it says you need to in your owners manual then you have solid lifters. The 6.9 IDI to 6.4 in Fords all run hydraulic lifters so a exhaust brake doesn't work that good.

You decend any of the hills where I live going to fast and relying on the exhaust brake and it fails your in big trouble. You can consider yourself dead. There are places if you are decending the hill and miss a corner and you keep going straight you end up in the trees. The trees wipe the cab right off your truck and crush you alive. Some accident victims are un-indenfiable some cases the victims head is laying on the floor the body is still in the seat.

On the flat sections with curves take a curve too fast you rollover or smash into the trees or a rock bank either one is going to take your life.

In the summer time the roads in this area take 2-3 tourists a month some dead some are so severely injured.

Just the way it goes you don't know how to handle hills and curves you run the risk of dying simple as that. If you don't obey the speed limit for the curves you will have troubles. The curvy sections of the road the speed limit is 40km/h (24 mph) on a dry road a wet road better knock that down to 18 mph.

You guys can keep "Pretending" your saving your brakes. If you knew how to drive properly you wouldn't need a exhaust brake. What do you think gears are for and using your head.

You can see why the USA has a 26,000lb CDL Law :laugh:

CrystalCreek
01-13-2009, 11:34 PM
Gravel Rat,
Was starting to think you went off a hill yourself. I havent seen one of your posts in a few days.

I will agree with you on the exhaust brake issue. It is a bandaid on a broken arm. If it was so good, all the manufacture's would be putting them on their trucks. Gears are the only way to get down some hills, unless people enjoy seeing the rotors glowing.

Gravel Rat
01-14-2009, 01:15 AM
For the power these P/U trucks have there should be some other auxillary braking system. I don't beleive the tow ratings the manufactures give these trucks. I think the trucks are over-rated for what they can handle trailer wise. A 12,000lb trailer behind a 3/4 ton or 1 ton truck is pushing the trucks limits decending a 10% grade with curves. Going down the grade the trailer will push you all over especially a bumper pull. A gooseneck is a diffrent story.

All it takes is one trailer brake to give out and your in trouble pulling a heavy trailer here.

A 3/4 ton diesel P/U pulling a 6000-7000lb mini on a tandem axle bumper pull trailer you have to be carefull you can run out of brakes quick.

FordLawnLandscape
01-14-2009, 06:58 AM
So , uh .. Gravel , you and factory "exhaust brakes" - thats a touchy subject huh :confused: ALTHOUGH i do believe u did state some very interesting details about Jakes. Sounds like u guys in Canada got some SERIOUS grades.

Gravel Rat
01-14-2009, 03:12 PM
There are steep grades all down the West Coast but on the coastal sections of B.C. there is smaller coastal mountains which the roads are carved into and through. There are sections of roads in on coastal B.C. you call the goat trails because the roads are narrow and twisty you pass trucks in the oposite direction with 12 inches to spare.

As for exhaust brakes people put too much trust in them. They don't work all the time we see it here they get stuck open. The actuator cylinder fails. Like on my truck the controller doesn't work half the time currently doesn't work at all.

I have been there with tandem axle dump trucks with a JAKE brake flip the switch and nothing there no JAKE. The clutch pedal switch is sticking.

When your going down a grade with curves you may have a steady rpm for a little bit then you slow down with the brakes to make curve then you loose your rpm and the exhaust brake does nothing at all.

My take on the tow ratings on these trucks is they are over rated I don't know where manufactures rate these ratings. For the braking and handling these trucks it maybe okay where you have no hills. Steep grades and S bend curves your pushing the truck to the max. Man if your trailer brakes ever failed it would be one scary ride.

johnnybravo8802
01-21-2009, 11:20 PM
I have one on my 03 F-450 6.0 it never works the stupid electronic controller doesn't work half the time. I don't need it I can decend 10-12% grades without it you just know how to drive in the hills. Anybody that depends on a exhaust brake or a JAKE brake to decend hills is a accident waiting to happen.

A exhaust brake is to assist in braking if you can't or don't have the skill to decend steep grades with the trucks brakes and using the transmission your in big trouble.

As for a exhaust brake they do work some but not all that great. If its a remote mount exhaust brake like on a 6.0 Ford or a Duramax you have lots of lag time. You have 4-5 feet of exhaust pipe to fill up before you get back pressure. Most of the Cummins are mounted close to the turbo or the older ones are so you get the back pressure quicker but your exhaust valves also tend to float more. Have weak valve springs watch out.

The best braking system is a transmission brake something that helps ****** the transmission I think the Allison has it and the tow haul mode in the Fords are simillar. A Telma brake is the best but its too large for a P/U truck. You put a Telma brake on a P/U you would give the windshield a lip lock.

Like I said never get dependant on a exhaust brake because one day it may not work and your going down a 12% grade and your in big chit because your going too fast.

Oh ya anything less than a 10% grade is for sissies :laugh:
All you guys are sissies!!!!Try stopping an 80,000# 18 wheeler when a car jumps out in front of you, slams on the brakes about 100 ft up, and then makes a left hand turn-you're literally standing up in the cab and you're head is touching the ceiling:laugh::laugh::laugh::laugh:All you think think to say....what the fu@@!!!!!!!

nosparkplugs
01-21-2009, 11:45 PM
All you guys are sissies!!!!Try stopping an 80,000# 18 wheeler when a car jumps out in front of you, slams on the brakes about 100 ft up, and then makes a left hand turn-you're literally standing up in the cab and you're head is touching the ceiling:laugh::laugh::laugh::laugh:All you think think to say....what the fu@@!!!!!!!

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