Hello,

I’m fairly new to the site and I have a few questions on exhaust brakes. If this has been covered before then I apologize in advance.

1. Which exhaust brake do you guys think is better? (Jacobs or Pacbrake)
Pacbrake seems to be an easier install but will there be any warranty issues using the Pacbrake? Cummins says the only one they recommend is the Jacobs.

2. I work for the Fire Dept in Little Rock and drive a 63’ Tiller Truck. It has a Jake Brake on it. When it rains we turn the brake off because the truck has a tendency to slide the rear duals when the brake kicks on. Since this is the first diesel that I have owned I am unsure if this would be common practice for a smaller truck like ours.



Thank you very much for your time and have a great and safe day!

Britt

 

The Jacobs will be covered under warranty if you have the dealership install it. They've been thoroughly tested with the Cummins engine. That's about all I can contribute to this conversation though.

As far as the rear end sliding around...I'd think that would be MORE likely to happen with these trucks than it would on your fire engine...simply because they're so light in the rear end (if you're empty). If your loaded then I doubt it would be a problem.

 

Moved for more exposure. <br><br>Ed

 

Hehehe....he said &quot;exposure&quot;...hehehe. ;D

 

I personally think the pacbrake is a better setup (compressor vs belt driven vac pump) I bought the jacob because of the warranty crap. Don't know why jake doesn't offer one with a compressor instead. YES turn it off in the rain. I had the ding to prove the butt will come around and you will see your trailer out the side window. Works awesome I will say. Get one.... ;D ;D

 

I use mine in the rain all the time - - especially in the higher gears and when towing. No problems. Just must be superior driving skills. <br><br>SmugBob

 

[quote author=t-7 firefighter link=board=7;threadid=15948;start=0#149815 date=1055781431]<br>2. I work for the Fire Dept in Little Rock and drive a 63’ Tiller Truck. It has a Jake Brake on it. When it rains we turn the brake off because the truck has a tendency to slide the rear duals when the brake kicks on. Since this is the first diesel that I have owned I am unsure if this would be common practice for a smaller truck like ours. <br>[/quote]<br><br>You shouldn't have a problem. The fire truck uses an engine brake that opens the exhaust valves at the top of the power stroke, which is way more effective than an exhaust brake. An exhaust brake is just a flapper in the exhaust pipe. That Jake brake on the fire truck probably gives around 400 braking horsepower. The best an exhaust brake can hope to do is give half the engine's rated HP as braking HP. The only time an exhaust brake will give you traction problems is on snow and ice. In those situations, turn it off.

 

thank you wannadiesel,<br><br>that is the info i was looking for. thank you for everyone that has replied....<br><br>all has been appreciated !!!