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Old 04-24-2016, 10:01 AM   #1
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Exhaust brake yes, no? Which? Cost?

I am interested in adding an exhaust brake to the bus I intend to purchase (full size conventional 2002ish DT466e + Allison 2500 with air brakes), as I have mountain driving in the future. Should I? Who could I get to install it? Brand? What might it cost?

On another thread, freakin' posted this (and I am hoping for more comments like it, with specifics if possible):
Quote:
Originally Posted by freakn View Post
Last Saturday I drove a 2003 72 pass. bluebird with a DT466E Manual trans for a friend. I had to go over a 4000ft pass with 6-7 percent grade. I switched on the exhaust brake at the top and never touched the brakes until I was down on the flat again at an intersection.
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Old 04-24-2016, 12:30 PM   #2
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I can't comment about engine nor exhaust brakes, but my bus does have a retarder built into the transmission. I've used it for several descents and even in town sometimes. It's great. I rarely turn it up all the way.

That said, unless you anticipate frequent descents, it may or may not really be worth the money to you. It's nice if you happen to pick a bus that happens to be equipped as happened in my case. But plenty of trucks get down steep grades without any trouble. Slowing before the hill begins, shift the transmission down, stab braking, and awareness to fully stop and cool the brakes immediately if any hint of brake fade is noted are about all it takes. If it were me and I had to do a good long descent just a couple times a year I don't think I'd bother with engine/transmission braking.
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Old 04-24-2016, 05:34 PM   #3
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PacBrake PRXB Exhaust Brake Navistar/IHC DT466E W/ 90 Pipe

http://pacbrake.com/wp-content/uploads/L2022.pdf


If you have a bus wrecking yard near by, you maybe able to get one.
They are really simple to hook up
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Old 04-24-2016, 09:21 PM   #4
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My experience with Jakes? I drove for a living and the company purchased a new series, equipped with Cat C12 and Jakes. The first few times I tried the Jakes, the engine "flamed out," and I had to wait at the side of the road for about 5 - 10 minutes before the engine could be restarted. After that, I didn't touch the Jakes at all. Of course, the one time I came out of the Eisenhower Summit on I-70, my brakes faded and I had to park against a cliff until the brakes themselves cooled down. Mind you, this was with a company that did VERY LITTLE maintenance on their trucks and expected you to run multiple log books.
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Old 04-25-2016, 10:18 PM   #5
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I intend to put an exhaust brake on my Cat. The retarders are much more expensive in my case. I can hook up all the mechanical things, I most likely will have cat or freightliner deal with the electronics. I will be in the mountains around phoenix about 6 or more times a year just getting home from other places.
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Old 04-25-2016, 10:39 PM   #6
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Jakes, exhaust brakes and retarders are all different systems
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Old 04-25-2016, 10:47 PM   #7
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Quote:
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Jakes, exhaust brakes and retarders are all different systems


Yep. And in order if cost I'd say Jakes are the most expensive and the exhaust brake the least.
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Old 04-26-2016, 12:31 AM   #8
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Quote:
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... ... The first few times I tried the Jakes, the engine "flamed out," and I had to wait at the side of the road for about 5 - 10 minutes before the engine could be restarted.... ...
I drove 18-wheelers for 27 years, mostly with Jacobs (Jake) and similar compression brakes, and I never even heard of the engine "flaming out". Clearly, something needed to be repaired on that truck.

If you install an exhaust brake, you may need to also install stiffer valve springs. As always, research thoroughly.
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Old 04-26-2016, 10:20 AM   #9
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Many folks only compare retarders to the other systems based on entry price, but long term they require virtually no service and do not impact the engine in any way. Jakes & exhaust brakes are about as expensive as a retarder when properly installed and long term maintenance is figured in. At least that is what I have been told by some career long haulers.

That said, a couple of them did admit they just like the sound from compression release systems.
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Old 04-26-2016, 10:48 AM   #10
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I think your only reasonably priced option is an exhaust brake.
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