engine break. who makes a good one. which is better exhaust brake or engine break. exhaust brake easier to install ??? right

 

No engine brakes for Powerstrokes. You can get a exhaust brake. Do you wnat cheap and easy or do ya got money to spend??

 

An engine brake or Jake brake (Jacobs Engine brakes) is actually a mechanical piece on the valve train of most heavy duty diesel engines (big rigs) What they do is actually hold the exhast valves open and let the rotating mass of the engine work against itself to slow the truck. At least that is to the best of my knowledge. My mother owned a trucking company since I was little and we did several engine rebuilds on big caterpillars. But to be honest, I never really payed attention to how the thing works.

The exhast brake is our only option in the light truck world. It actually closes off the exhaust coming out of the turbo thus choking the engine down. But it is quite effective. Hope that helps, and if I'm completly wrong, someone will chime in I'm certain.

 

i guess i ment to ask who makes a good exhaust brake for the truck. i already know the idfferences i am a diesel mechanic for the army. i wokr on bothe types in our big trucks.

 

and cheap and easy just like i like my women

 

You can make one by utilizing the exhust back pressure valve. Its not as effective as a aftermarket, but then your talking around 800 bucks.
Go here.....

http://pages.prodigy.net/stevebaz/_i...az/index3.html

Alot of good info and about 1/4 way down the page is instruction to DIY.

 

That's where I got my info from. Don't know who this guys is, but he's accumulated a lot of really cool info and it's all DIY.

 

[QUOTE=RubberDuck]An engine brake or Jake brake (Jacobs Engine brakes) is actually a mechanical piece on the valve train of most heavy duty diesel engines (big rigs) What they do is actually hold the exhast valves open and let the rotating mass of the engine work against itself to slow the truck. At least that is to the best of my knowledge. My mother owned a trucking company since I was little and we did several engine rebuilds on big caterpillars. But to be honest, I never really payed attention to how the thing works.

QUOTE]

your kinda right, jacob brake from my experance on the cummins N-14 works in the fashon, the whole valve train works noramally under engine braking conditions, when your engine is doing the braking fuel to the injectors are shut-off, near the end of the compression strock at TDC the selinoid is energized that opens the exhaust valve hense thats how you get the loud popping/barking in the exhaust. After the gases are relaesed the valve then closes and the piston continues on its marry way to go through all the strokes working in a normal fashion.

really the only thing to note, the exhaust valve opens just before TDC and then closes on the power stroke when delerating

one way to increase the engine brake power, set the jacob brake 2-3 thou loosser. for every though you set looser you gain an extra 25 engine brake hp this is caused because the piston compresses more before the exhaust valve opens but to much and you will start breaking things.

 

I've had an exhaust brake on my '95 Powerstroke for about 8 or 9 years now, and it works like a dream! I bought a rather cheap version off Ebay for under $100. at the time (although I think they are priced similarly now) and it uses the existing EBPV (exhaust back pressure valve) we currently have on our Powerstrokes as an exhaust brake. This basically gives the EBPV "double duty" for it's attended use, plus use as an e-brake!

It's a rather simple hook up as well, as there are no mechanical changes made, as it's as simple as hooking the correct wires to where they go...and your done!

In using it, you just flip the switch, and 2 seconds later (2 second delay) while going down a hill (best used when towing to get the full affect) your truck slows down considerably...and it holds you back until you flip the switch again, OR when you start to accelerate the e-brake automatically comes off...or the butterfly valve returns to it's original position.
Now...I believe the newer versions are better than the original, in that I have to return the switch to the off position prior to stopping, as it locks the torque convertor, and the engine will stall if I don't....whereas I believe the newer versions "may" not allow this.
I've never forgotten, but it is a possibility if forgotten! (in my case).

My wife tells me the e-brake is the best mod I've done to the truck, as when pulling my 25' travel trailer, with the e-brake "on" it's a rarity to ever need to touch the brake pedal while going down-hill.

To check out exhaust brakes on Ebay, go to their website at www.ebay.com and in the search field type in Powerstroke exhaust brake .
I have the one that SP Diesel shows, but as mentioned, it was much less $$ several years ago, but there again I'm sure much more time and effort has gone into it to make it better now! The ones on Ebay that are selling all work similarly (some may have different options than others) and my brother bought the "Powerstroker" e-brake, and it works as mine does.

PSD2000