Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > MOTORHOME FORUMS > Class A Motorhome Discussions
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 07-02-2022, 12:17 PM   #267
Senior Member
 
mackwrench's Avatar
 
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,382
Next thing I'd do then is drain all air off, remove the bolts that hold the canister/filter cover and see if it's saturated with oil.....

If so, obviously it'll need replacement, if not, spray brake cleaner in center of dryer with filter removed, remove supply line and governor control line, clean out with brake cleaner...
Point being try to remove all and as much oil residue as possible.

Put a clean piece of cardboard under dryer and try to determine how much is oil, or water/condensation.

I know that looks like a lot of oil in the spot on concrete, but just a little bit will make a mess.
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
mackwrench is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 07-02-2022, 12:26 PM   #268
Senior Member
 
mackwrench's Avatar
 
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,382
I just last month "kit rebuilt" mine, replaced purge valve, one-way valve, filter and desicent cartridge, etc ...
This is what it looks like..Click image for larger version

Name:	IMG_20220702_141921913.jpg
Views:	14
Size:	75.4 KB
ID:	369914
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
mackwrench is offline   Reply With Quote
Old 07-02-2022, 01:03 PM   #269
Senior Member
 
Join Date: Jul 2014
Posts: 32,664
Remove the compressor line from the dryer and tie it into a 5 gallon bucket of water.

Start and run the engine at high RPMs for a few minutes, letting the air bubble in the bucket.

After a few minutes, see if any oil is in the water.

If yes, remove air intake hose from compressor and retest with clean water. If still oil, bad compressor, if no oil restricted intake.
twinboat is offline   Reply With Quote
Old 07-02-2022, 01:14 PM   #270
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
Thank you for these suggestions.
I'm tied up a it holiday obligations for the rest of today and tomorrow. Monday morning I will try these things and report back.

Thank you both
Roland Trombley is offline   Reply With Quote
Old 07-02-2022, 01:22 PM   #271
Senior Member
 
Chatham's Avatar
 
Join Date: Sep 2013
Location: Ocala
Posts: 131
Why go to Freightliner?

I have a MB900 diesel rv on Freightliner M2 chassis.
For engine work I go to Allison Transmission as they work
On diesel engines like mine. I use Freightliner for suspension and a/c work. Some Freightliner shops refuse to work on rvs, like Atlanta beltway FL. Try Allison but get confirmed agreed quote on service agreement.
Patrick
Chatham is offline   Reply With Quote
Old 07-02-2022, 03:13 PM   #272
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
https://hosting.photobucket.com/imag...702_164121.jpg

I took this picture this morning.

Before Freightliner replaced my compressor the braided supply line from the compressor ran horizontally, gradually going to the dryer. Now they have created a vertical loop, and put a kink in the line. I wonder if oil from the first replacement compressor, which they said was bad, pumped oil into the two low points in the line
, causing that oil to now be carried into the new dryer.


Note:
The original problem was failure to build air pressure. Before these mechanics started working on it, my motorhome never, ever had a single drop oil oil dripping from anywhere.
Roland Trombley is offline   Reply With Quote
Old 07-02-2022, 04:43 PM   #273
Senior Member
 
Unplanned Tourist's Avatar
 
Winnebago Owners Club
Workhorse Chassis Owner
Join Date: May 2016
Location: Kamloops, BC, 60 miles from the Center of the Universe
Posts: 6,706
Another thing to look at is the line to the intake of your compressor. If itís blocked or is restricted, your compressor could be pulling oil up past the piston rings.

We always had as straight short line as possible from the intake manifold to the compressor. If thereís a rubber line anywhere, it could have a flapper. Normally compressors are fed with manifold pressure air these days and thereís a valve in the system to prevent turbocharged pressure escaping when the compressor is unloaded (not working.

Just something more to look into.
__________________
Happy Glamping, Norman & Elna. 2008 Winnebago Adventurer 38J, W24, dozens of small thirsty ponies. Retired after 40 years wrenching on trucks! 2010 Ford Ranger toad with bicycles or KLR 650 in the back. Easy to spot an RVer, they always walk around with a screwdriver or wrench in one hand!
Unplanned Tourist is online now   Reply With Quote
Old 07-04-2022, 12:09 PM   #274
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
I went out first thing this morning and dug into this further. First I removed the air filter to get a better look at things. When they installed the new compressor they were unable to lay the braided cable as it originally was configured, and in the process they put a kink and a loop in the line, and left the hose support clamp hanging loose at the compressor end of the hose. Isn't that line to be free of any trapped areas and/or kinks?

They ended up using a couple of zip ties to secure it to a support nearby. I cut the zip ties and tried to reroute it, but I couldn't. I want to replace the braided line with a new one, but I don't know how I can get a wrench on the nut on the compressor end of the line.

I opened up the air dryer and cleaned everything I could see, but there was not much I could do with it. Fortunately, there is still no evidence of oil anywhere beyond the air dryer. I reassembled the dryer with a new Dessicant cartridge, just to be safe.

After I reassembled the dryer I put the compressor discharge hose into a bucket of water and ran the engine for about 15 minutes. There was no sign of oil in the water, as seen in the photo. The dark areas in the bucket are shadows.

Can anyone tell me what the light gray slurry is that comes out of the purge port with the oil? Or could it be that I am not really seeing oil? After driving 400 miles the oil level on the engine dipstick is still where it was when I left.

Something that I have just realized is that the oil or whatever it is coming out of the purge port is not black like diesel engine oil.

Some photos:

https://hosting.photobucket.com/imag..._130634(1).jpg

https://hosting.photobucket.com/imag...704_083045.jpg

https://hosting.photobucket.com/imag..._083654(1).jpg

https://hosting.photobucket.com/imag...704_093607.jpg
Roland Trombley is offline   Reply With Quote
Old 07-04-2022, 12:12 PM   #275
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
Another photo

https://hosting.photobucket.com/imag...704_093607.jpg
Roland Trombley is offline   Reply With Quote
Old 07-04-2022, 12:19 PM   #276
Senior Member
 
Join Date: Jul 2014
Posts: 32,664
I would check the plumbing after the turbo charger and if clean, just go with it.

Compressor manufactures recommend a down hill run for the compressor discharge hose to the dryer. They caution that during winter, any low spots can accumulated water and freeze up, blocking the air flow.
twinboat is offline   Reply With Quote
Old 07-04-2022, 12:38 PM   #277
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
Quote:
Originally Posted by twinboat View Post
I would check the plumbing after the turbo charger and if clean, just go with it.

Compressor manufactures recommend a down hill run for the compressor discharge hose to the dryer. They caution that during winter, any low spots can accumulated water and freeze up, blocking the air flow.
I did check that last week and the intake tube was perfectly clean inside.
Roland Trombley is offline   Reply With Quote
Old 07-04-2022, 03:00 PM   #278
Senior Member
 
mackwrench's Avatar
 
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,382
Perhaps take a pair of pliers and gently squeeze that kink out of the line....

That line looks like length used on a heavy truck as dryer is usually mounted behind cab and takes 5 or 6 feet of hose to get from compressor.
Probably all Freightliner had in stock that was ready made.

Possible to remove all the clamps/zip ties and reroute it with out removing it from the compressor?

As twinboat noted the loop or low spots in supply line can hold condensation that could freeze in winter causing air supply issues in that type of weather....

You got it cleaned, new filter, no oil in compressor intake pipe or in supply line from engine....

Put the spurs to it. Enjoy your travels!
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
mackwrench is offline   Reply With Quote
Old 07-04-2022, 05:17 PM   #279
Senior Member
 
Roland Trombley's Avatar
 
Join Date: Jan 2009
Location: Michigan
Posts: 128
I'll getting out that kink and rerouting it after loosening all of the mounting clamps.
Thank you all.
��
Roland Trombley is offline   Reply With Quote
Old 07-04-2022, 05:22 PM   #280
Senior Member
 
Join Date: Oct 2014
Posts: 6,556
Yes, ideal is for the air compressor to air dryer hose to ONLY go down hill from compressor to dryer.
__________________
Brett Wolfe
Ex: 2003 Alpine 38FDDS. Ex: 1997 Safari Sahara. Ex: 1993 Foretravel U240
wolfe10 is online now   Reply With Quote
Reply



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Workhorse left me stranded! vacation on wheels Workhorse and Chevrolet Chassis Motorhome Forum 75 11-25-2008 06:30 PM
RV stranded in Oregon for 17 days rescued. Two Bit iRV2.com General Discussion 8 03-25-2006 10:46 AM
Stranded and in bad situation-need help Wingding Alpine Coach Owner's Forum 28 05-06-2005 10:59 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 01:32 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.