Navistar to ditch EGR in favor of SCR

**Semi Crazy** · 07.04.2012

If ya can't beat 'em, join 'em!

**Cat sdp** · 07.04.2012

Because I needed to upgrade ,and I had the resources to buy new. I believed that cat built the best moters and equipment on the planet.I was wrong !

No mater how the partnership works the 660 is still a emissions pos 5 years later . Cat sucks!

And yes I still have my pos, and I'm bitter.

**SmokinCAT** · 07.04.2012

I for one think the ACERT engines are some of the most well built engines cat has ever built, just strip them of the crap that is problematic( all emmission related) and you have an excellent base to build a stupid amount of reliable power.

If you don't like it sell it and buy a red motor, then when it windows the block you can tell us how much you hate cummins.

**LBZ** · 07.04.2012

Originally Posted by Cat sdp

Because I needed to upgrade ,and I had the resources to buy new. I believed that cat built the best moters and equipment on the planet.I was wrong !

No mater how the partnership works the 660 is still a emissions pos 5 years later . Cat sucks!

And yes I still have my pos, and I'm bitter.

You need to relax a bit.

You are going to blow way more gaskets than ANY of the emission stifled motors. If you look around, there is not a desirable motor of any color from that time frame left in stock trim to be ran as is. Every Paccar dealer I talk to raves about those red motors. A few of the honest ones even tell you about the egr valves/coolers/turbos/dpf's you will be working on all via the Environmental Protection Agency.
They snap their fingers & expect mfg's to create something.

What is worse, this just made its way through the courts a few days ago. They are not going to be happy until you are standing on top of your cab spinning a wind sail. DPF/EGR/SCR won't be enough after this...

WASHINGTON (Reuters) - A U.S. appeals court on Tuesday upheld the first-ever U.S. proposed rules governing heat-trapping greenhouse gases, clearing a path for sweeping regulations affecting vehicles, coal-burning power plants and other industrial facilities.
Handing a setback to industry and a victory to the Obama administration, the U.S. Court of Appeals for the District of Columbia unanimously ruled the Environmental Protection Agency's finding that carbon dioxide is a public danger and the decision to set limits for emissions from cars and light trucks were "neither arbitrary nor capricious."

http://articles.chicagotribune.com/2...-clean-air-act

**Cowpie1** · 07.05.2012

Originally Posted by 25(2)+2

As for the pre egr engines not needing a DPF, those have to be added everywhere mandated (California and New Jersey for now) to make an older engine marginally compliant.

No doubt about CA, but where is the regulation from NJ that a DPF retrofit is required? The only thing I have seen of NJ is that they have done testing of opacity of the exhaust on some trucks, but the engines are only required to meet the emission standard they were originally produced with. Maybe some of the ports in NJ are playing a game like CA, but I have not seen any state mandate from NJ. And the majority of the rest of the country still doesn't even emission test any vehicles and don't even check if the emission stuff is even working.

Oh well, I don't go to either place, so it is a non issue for me.

**Cowpie1** · 07.05.2012

Originally Posted by SmokinCAT

Here is my thing, unless you are located in a ####### state that mandates truck age you were not forced to buy a brand new truck, so why did you knowing that all problems stem from emmision equipment that is mandated on all new trucks, when a slightly older more reliable truck would have sufficed.

Or get a brand new 2013 glider truck like I did with a pre-emission engine. No EGR, SCR, or DPF in sight. Best of both worlds, and one heck of a lot cheaper to buy and operate.

**RickG** · 07.05.2012

Originally Posted by turnanburn

CAT might have to step up and make their own engine again. But what i keep thinking about is, What if you own new or newer EGR trucks? How will they support engines with repair problems big enough to make them stop using them, when they don't even make them anymore? Sounds messy.

The CAT trucks are made in a NAVISTAR plant . They will always have NAVISTAR engines .

**turnanburn** · 07.05.2012

CAT teamed up with a company that is experiencing great difficulties with engine technology. We'll see how that goes. Navistar has promised its dealer network that they will come out with another (presumably SCR) MAxforce. We'll see how that goes too!

**DrtyDiesel** · 07.05.2012

Correct me if I'm wrong but why hasn't navistar put out an engine with over 500 horses? I believe the 13 only goes up to 485, but I'm not sure what the new 15 goes too.

Ethan

**turnanburn** · 07.08.2012

http://www.google.com/url?sa=t&rct=j...LJyjtw&cad=rja

Here's the link to the Navistars Friday announcement. They are going to add SCR components to their engine. I get a good laugh at this quote: " many investors would have preferred that Navistar forgo its own efforts and purchase engines from Cummins Inc. instead." Time will tell on this one!