The Difference Between Jake Brakes And Exhaust Brakes?

Jake Brakes, Engine Retarder, or Compression Brake versus an Exhaust Brake, what is the difference between them? This video goes over the differences in design, effectiveness, and maintenance.

[lawrencemagda]

Jake Brake keeping America awake for over 40 yrs! :)

[greggcollins]

This is the best description of how Jake works I have heard. Every other explanation I have heard has missed telling about the timing on the exhaust valve opening. Everyone else just says that it holds the valves open but they don't say just when they are opened in the cycle. Now I get it.

[matthinge]

Funny story about Jake Brakes - The original idea came from Clessie Cummins, founder of Cummins after he had left the business in the 1950s. They had an agreement that he would present them any inventions he came up with, but they were not interested in this idea. Clessie presented the idea to Jacobs Manufacturing Co. and look at them now!

[maccliff]

I wish my instructor at UTI (Avondale/Phoenix) in 2005 was as knowledgeable and articulate as you.
Great video.

[robertborchert]

I've worked with Jakes both on Cummins and Detroits. Both work very well. In the Fire Service, we had retarders on some apparatus. This is electric, a device fitted to the driveshaft. They use aluminium disks and electromagnets, absolutely silent and magic.

[bertgrau]

Today most diesel engines come with some kind of engine brakes, I remember when you had drag your feet to stop your truck, glad those days are gone

[jasongeorge]

I've been a school bus driver for 10 years, and I've driven quite a few buses. One of the buses I drove had an exhaust brake on it (think it was an '05 International, can't remember what kind of engine was in it though). It was a really nice feature, especially on field trips. Coupled with the automatic, it would not only slow down on the hills, but the tranny would also shift down on its own. I still had to use the brake pedal, especially with a lot of passengers, but given that Internationals tend to require a heavy foot to operate the brakes, it was a really nice ankle-saver. The biggest drawback I found with it was the odd smell of burnt diesel whenever I used it. The odor would get into the cabin and stay there for a minute or two after I'd turned the E-brake off. It wasn't overwhelming, but still noticeable. I really miss that bus sometimes. Out of all the Trash Nationals I've driven, it was actually a good bus!

[johnfry]

I watch all of your videos, I drove big rig's for 34 yr's and I can tell you the jake was the single best invention in trucking ever !
I drove trucks without them and it was HELL . I put a exhaust brake on my 2006 Dodge Cummins and I can tell you I am impressed, I wish I would have done it when it was brand new . I went with the PacBrake because it was rated the best, and it is amazing . Thanks for all the good videos .

[Gcal]

I'm so tired of explaining this to pick up truck owners.
That's for the video.

[olspanner]

Well done, simple easy to follow description of Jake vs Exhaust brakes.

[tracylemme]

Thanks for the explanation. I don’t seem to be able to explain to people how efficient a Jake brake is at being inefficient.
Classiest was a genius.
The patent was a wedding gift to Clessie’s daughter and new son in law. He was of the Family known for Jacobs drill chucks.

[mzee]

Hello there Adept hope you're doing great mann. Keep these videos rolling mate 👍👍👍

[robertcirincione]

Just watched the video and wanted to comment. I worked for Mack in the late nineties and they had this setup with Jacobs called the Stealth system on their 454 E7's. It was the Extarder exhaust brake with the Jacobs engine brake together. Basically on the low setting it was just the exhaust brake and then on the high it was both but the compression brake was detuned so it was basically a failure. Went back to just a Jacobs engine brake on the ETechs.

[colonelmann]

This was really interesting. I've used engine brakes but really had no clue of the mechanics of these units.
Plus the none truck driver question people ask "why do those big trucks make THAT loud noise?"

[edwardojr]

Our dairy has the 2015 Cat truck with automatic 6 speed trans. From what I understand, International made Cat the engine, and Cat painted it their signature Cat yellow color, and put their own name on it. "N13" we discovered it came with engine brakes as well as an exhaust brake, once we pulled the motor to swap out with yet another "Cat" motor made from International

[danielc]

A lot of class 2-6 diesel trucks nowadays will usually have an exhaust brake.

[J.R.in_WV]

Josh, I’d love to see a video on operation and rebuilding or the inner workings of the CAT BRAKESAVER. I understand the theory of operation but would love to see one in more detail.

[fd]

I own a 2019 Dodge RAM with a Cummins diesel engine. The Exhaust Brake works awesome when towing my 5th wheel trailer.

[williamdonnelly]

Donaldson makes the "Silent Partner" series mufflers to quiet the exhaust to Quiet City Ordinance Standards. It is worth looking at if you want to run the Jake Brake in a city.

[kirstenspencer]

The exhaust style engine brake can be useful when shifting going up a steep hill. The equipment were school buses with spicer 5 speeds powered by cat 3208's.