Jump to content

Recommended Posts

2005 mack cv713 400 AI I think also called a e7.  What is the contraption with all the hoses going to it under the turbo? There's a short rubber fitting with big hole in it and oil blowing out of it. Are these all vaccum lines? I'm a little lost here. 

Link to post
Share on other sites

That tube goes to the intake manifold on rear of driver side.  It is feed for A/C intake, that will cause you to loose turbo pressure, causing low power. Need top replace hose.

  • Like 2
Link to post
Share on other sites

You mentioned that it is leaking oil out of that hose. That would suggest that the air compressor has failed. Drain the air tanks and see if there is oil coming out of them. Also check the purge valve on the air drier for excessive amounts of oil. 

Thanks for the pic.

V

  • Like 1
Link to post
Share on other sites
2 minutes ago, trucking251 said:

Do you think the small piece of rubber hose with hose clamp is original or a quick fix? 

That hose is a quick fix. If its blue in color then more than likely it is original.

V

  • Like 1
Link to post
Share on other sites
18 hours ago, Vmac3 said:

That hose is a quick fix. If its blue in color then more than likely it is original.

V

Yup agree ! also there is a second hose like that one on the under side of the inlet manifold! check on that too!Your best to use a heavily braided coolant hose OR the proper Blue heavily braided hose from mack land!

  • Like 1
Link to post
Share on other sites

Thanks for info. I didn't mention that major amount of oil in exhaust, I assumed turbo and have new one on shelf ready to go in, would this cause oil in that hose? hoping to not have to replace compressor as well, seems to build air fine

Link to post
Share on other sites

I just noticed your picture.  I've been to the top of Mt. Washington twice..  I went up on a motorcycle once, it was great!. Jojo

Link to post
Share on other sites
23 hours ago, trucking251 said:

So here is pic. Figured out it is air compressor. But what is the hose that has big hole in it?

IMG_0065.jpg

That's called the hose that's going to make you buy a new compressor in this instance .

Link to post
Share on other sites

If you are asking me..... what I mean is the output of the turbo is called the compressor side, in some terms... I also think his air comp. intake goes around the back of the head to the bottom of the rear of the intake manifold.  i didnt see where it went to the elbow after the air filter...  thank you, jojo

Link to post
Share on other sites

The hose with the hole in it, is the intake, the larger steel pipe is the output.  the 2 #6 J.I.C. hoses is coolant flow , in-and-out, the 1/4" line is the signal line for the governor... 

Link to post
Share on other sites

AI most certainly is an EGR engine. I can almost remember the rigid line that hose with the hole in it rotting on those where it hides behind the engine on it's way up to the ducting from the air cleaner into the turbo.  

Link to post
Share on other sites

Those often fail due to due to heat  ,the compressor working  because of overtime air leaks is the air drier purging every fifteen seconds ?  ! Or clogged coolant lines!

  • Like 2
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    No registered users viewing this page.

×
×
  • Create New...