Jacobs exhaust brake

[Motofreak]

For any of you that have installed your own Jacobs brake how long did it take you? Any special tools? Got a good deal on a couple so plan to do it soon.

 

[GFrance]

Hey Motofreak you can download the pdf file from the jacobs web site on instalation & see for yourself whats involved & what tools you'll need. Here http://www.jakebrake.com/support/docs/32414 E2_Screen.pdf



What kind of price & where did you get it? I'm wanting one for my 05. You can pm me if you'd like.

 

[klenger]

Buy it here



I installed mine in about 6 hours, but I'm kind of anal about that kind of stuff so it takes me a while. Worst part for me was installing the new serpentine belt. The old one comes right off. When trying to put the new one on, you would swear that you need to remove the fan to install the new belt. (You don't).

 

[MMeier]

Damn Ken , I love that page you put together!!!! Oo. Keep up the great work !!

 

[Diesel Nut]

Easy to install, just installs in place of the elbow on theback of the turbo, then your controls, bout 6 hours or so. I, personally, wouldn't buy one if I had it to do over again. I would go get a PacBrake or BD or something. My Jacobs was a PITA to keep up. Most of the problems have probobly been fixed, but I still have a dead brake from a failed vacuum pump. Not a cheap fix. Since I am a PacBrake dealer I will be replacing the Jale with the Pac as soon as I get back home!

 

[Ol'TrailDog]

The Jakes aren't hard to install. I had one on my 02 and 04 and they worked well. I now have a BD on my 97 that I scrounged up for $300.



If I was to do the 04 over again, I'd go with something other than Jacobs because of the serpentine driven vacum pump. I have heard of several pumps failing and they are not cheap to replace. Also, I didn't care too much for having a non-OEM serpentine belt. On the next truck I would probably go with a Pac. The new PBRX, or whatever, are suppose to be nice - but are way overpriced.



Best mod I've put in the CTD and I sure can't imagine being without one, especially for Teton Pass.

 

[Diesel Nut]

PRXB - Pressure Regulated Exhaust Brake



These things are cool, I can't wait to put mine in. And they are about the same price as a Jacobs, maybe a bit more. I could fix the Jake but don't want to mess with it, and like Ol Trail Dog said, sucks having a non stock belt up there, if you trash it your screwed. Better to have one run off a compressor you can use for other things anyhow!

 

[Motofreak]

Sheesh, now you guys got me wondering if I shoudnt get something other than a Jake. The compressor that comes with the others (Pac?) isnt it too small to use for anything (pumping tires, etc. )

 

[Okie-Go]

I also have a brand new jake still in the box waiting to be put in the truck. I never had a lick of trouble with the one on the 01. I hope I didn't mess up with getting another jake. With the 6 speed it is super handy to have pulling trailers or even empty. Will have to do some thinking I guess!

 

[Blu-meanie]

Klenger: "Worst part for me was installing the new serpentine belt. "



I think that was the biggest problem I had too, taking the old one off was a breeze. Putting the new one on... ... ... ... I kept trying to get it over the fan, doesn't work that way. I had to talk mine on. I get anal about stuff too.

 

[REndres]

If you install other than Jacobs , can the dealer void warrenty?

 

[Ol'TrailDog]

I thought for the later model years, e. g. they realized the error of their ways and put factory vacum back on the CTD???



If not, again, my personal opinion from having one is I'd go for one of the other beside the Jake because of the serpentine belt differences and the difference in price to replace the vacum pump if it fails. . Having said that I didn't have any problems with the Jake in the 04, albeit, it didn't seem to have as much punch as the Jake on the 02.

 

[TowPro]

I plan to carry the belt I remove when I put my Jake on, so in case of problems I have a spare.



there was another thread click here where they found a cross reference for a cumming pump ($295. 00) to replace the Dodge ($695. 00) pump.



I just saw my receipt, I paid $1046. 00 including 6% tax for mine at Cummins. This included a 10% discount for being a "cummins power masters" member (membership cost $17. 95)

 

[Motofreak]

ABout the compressors on the other kinds, can they be used to air up tires?

 

[jacqnbill]

Buy it here



I installed mine in about 6 hours, but I'm kind of anal about that kind of stuff so it takes me a while. Worst part for me was installing the new serpentine belt. The old one comes right off. When trying to put the new one on, you would swear that you need to remove the fan to install the new belt. (You don't).

I had the same problem with the belt. DO NOT I REPEAT DO NOT try to put the belt around the fan blade. The belt can be installed without putting over the fan which requires removal of the wire pipe to the fan clutch. I spent one day trying to put the belt on. The install is a POC other than the belt.



Bill

 

[klenger]

The non-standard belt is a non-issue IMHO. First, you can carry a spare one that fits the pump, 2nd you can carry the old one as a spare, 3rd you can always replace the belt with a standard one (w/o an optional exhaust brake) till you can get the correct one.



I don't understand why DC can't use a electrical servo instead of the vacuum one, or an electric vacuum pump that would only need to run when the brake was in use.

 

[DHerbeck]

Don't you think we could find out the vacuum requirements of the Jacobs and possibly install an electric vacuum pump with a vacuum tank mounted somewhere underneath to supply enough vacuum to run this thing? I just don't want to believe we are stuck with the belt driven pump at replacement time, which I would hope would be at least 75,000 miles away.

 

[Diesel Nut]

My vacuum pump went out at about 50K miles after install. Pain in the backside.

 

[dmurdock]

Does vacuum hold it shut or hold it open? ie: if the pump fails, is the brake on or are you just out of an exhaust brake? I have the original belt.

 

[formula]

Does vacuum hold it shut or hold it open? ie: if the pump fails, is the brake on or are you just out of an exhaust brake? I have the original belt.

The vacuum closes the brake. With no vacuum the spring inside the actuator holds the valve open. So, no vacuum, brake just doesn't work, you can still drive the truck.



Sean