Cummins CAC

[Sully2]

Anyone know what a CAC for an ISC Cummins will set a guy back...$$$$-wise?

[Sully2]

FINALLY got the buggy home ( at last)

Cummins got me to the tune of $5500 and the genset place got me for $290 and the work that both / either did was way beyond me. She sure runs like a top now though.

Sadly the camping season here is just about kaput and the monsoons are about to start in....but I'll be in like Flyn come next spring!!

[Grant_Lasson]

...I was given a price of $1400 for a new one..?? Im here by myself and physically unable to do the work so even if they wanted $1500 an hour its still a bargain for me.

It's all about the quality of the core and how long you intend to use your motorhome. I had my radiator re-cored to a much higher quality when it leaked. Prevost level. Since, I have had no cooling problems in some very hot environments.

If you're near the end of your use then a standard quality core may be fine. Those $1400 CACs are built to a price point and will likely not have a really long life. That's why you're replacing one now.

[Sully2]

?? dont undersrtand that posting???

[mci7]

Not a good place to cheap out on the CAC, you need plenty area for cooling and structure to maintain pressure, do not want leaks.
My transmission cooler is a heat exchanger mounted on lower radiator hose, works great and is the standard method for larger engine transmission setups, internal radiator mounted cooling loop for transmission is used on very light duty setups, cars, pickups etc.
Dave M

[Grant_Lasson]

CAC's can be rebuilt. They saw off the end caps and replace the core. A good radiator shop can get you hooked up.

A friend just got his done. He was able to choose a much higher end core than he could have justified in a new CAC and it cost less money.

I think he told me it cost about $1.5k. He pulled and installed the CAC himself.

[wolfe10]

Oil cooler may (not likely) be in the radiator. Never, never seen one in the CAC.

MUCH more likely the cooler is for the transmission. And it will very likely be in the RADIATOR.

[Sully2]

FIRE UP wrote:

Now, again, in a zillion years of being around fire trucks, I've NEVER SEEN ANY OIL COOLER or, anything else that's heat related attached to them. I mean, WHY would anyone (manufacturer) do that, to increase the external and internal temp of that air cooler when it's soul purpose is to COOL THE AIR THAT'S BEING FLOWED THROUGH IT?????

And, as a side note, our '04 Itasca Horizon 36GD with the C-7 330HP CAT also uses the RED coolant.
Scott

Ive had trucks that had radiators with a condensor mounted in front of it and a tranny cooler mounted directly behind it....so it IS done

[FIRE_UP]

Sully2 wrote:
Don & Rooster: Im putting the blue back in because thats what I had before....if that means anything.....lol

But from what I have gathered it doesn tmake any sort of difference AS LONG AS you STAY with that coolant when you might have to add a little ( for whatever reason???)

MY CAC has been repaired and should be re-instaled today (friday)

AND...the CC tech must have been wrong...'cause there wasnt any oil cooler attached to my CAC at all..???

Sully,
First off, that's what I was going to suggest was, go and get an estimate from a radiator repair shop to see what was entailed to fix yours, if it could be repaired that is, and, what the cost was. You see, in all my years as a fireman, we had several CACs repaired on our trucks. They get such harsh treatment in that environment. Many of them cracked alongside the collector boxes on both sides and, even some tubing in the field (center).

But the point is, they're all aluminum so, a good radiator shop can handle it. Now, again, in a zillion years of being around fire trucks, I've NEVER SEEN ANY OIL COOLER or, anything else that's heat related attached to them. I mean, WHY would anyone (manufacturer) do that, to increase the external and internal temp of that air cooler when it's soul purpose is to COOL THE AIR THAT'S BEING FLOWED THROUGH IT?????

And, as a side note, our '04 Itasca Horizon 36GD with the C-7 330HP CAT also uses the RED coolant.
Scott

[Sully2]

Don & Rooster: Im putting the blue back in because thats what I had before....if that means anything.....lol

But from what I have gathered it doesn tmake any sort of difference AS LONG AS you STAY with that coolant when you might have to add a little ( for whatever reason???)

MY CAC has been repaired and should be re-instaled today (friday)

AND...the CC tech must have been wrong...'cause there wasnt any oil cooler attached to my CAC at all..???

[J-Rooster]

dons2346 wrote:
I was at an FMCA rally once and a seminar guy told us that you cannot tell what type of coolant you have by color. Based on that and what I have seen, I do believe he wasn't throwing BS. I use the Fleetguard EAS Compleat and it is blue for whatever it is worth. I have never seen any red stuff.

What about your CAC? Any luck? Oil cooler attached? I'd look at mine but the coach is in Oregon getting an interior face lift.

Don, I'm a retired over the road driver and when I was working all we used was the red stuff in over 500 trucks! That was back in 2010.

[dons2346]

I was at an FMCA rally once and a seminar guy told us that you cannot tell what type of coolant you have by color. Based on that and what I have seen, I do believe he wasn't throwing BS. I use the Fleetguard EAS Compleat and it is blue for whatever it is worth. I have never seen any red stuff.

What about your CAC? Any luck? Oil cooler attached? I'd look at mine but the coach is in Oregon getting an interior face lift.

[Sully2]

dons2346 wrote:
Here is another place I found in my bookmarks that does coolers http://www.cgj.com/store/category/charge-air-coolers

Don: Proof that you can learn something every day.

I finally got a Cummins tech guy nailed to the floor to explain something. Some say their long life coolant is RED....my own experience was the long life stuff I bought was bright BLUE. Guess what??

They have extended life ( long life) coolants of BOTH COLORS!:E I wont go into all the foo-fa ra as he explained it but either works fine he told me and the red "seemed" to last about 6 months longer. Im putting the blue stuff back in and that way I wont have to doa total, complete drain and flush twice to get the "red" stuff out.

They sure dont make it easy on a guy to publish and open explain this stuff prior to buying it!

[dons2346]

Here is another place I found in my bookmarks that does coolers http://www.cgj.com/store/category/charge-air-coolers

[Sully2]

dons2346 wrote:

Sully2 wrote:

dons2346 wrote:
Anywhere from 1.4 to 2.0 large

$1400 PLUS the engine oil cooler thats made onto it is another $1250..!!!!!!!!:E

When I had my radiator replaced, they removed the radiator, CAC and associated fan stuff as one unit. I don't remember seeing any oil cooler or any oil hoses running to it.

Have you checked here? http://detroitradiatorcorp.com/catalog/product/charge-air-coolers/

They told me my oil cooler was attached to the CAC..? I'll find out for sure once Cummins gets the thing yanked out so we can see whats what