|
05-22-2019, 12:00 PM
|
#1
|
Junior Member
Join Date: May 2019
Posts: 2
|
Oil blowout from overflow tube on a Cummins diesel
Have a class a coach, freighliner chassis with a 300 Cummings diesel. I see posts about oil blow-back from overflow tube. 38' 2006 Sportscoach, purchased new, now 31,000 miles.
Question
1. Does Cummings make a fix like Caterpillar that fixes the problem? They have an overflow can attached to side of motor with a filter and a tube running the oil back into the motor crankcase. The oil is never exposed, and the oil is recirculated clean.
2. What is the best fix other than that? And can i fix it myself?
Links or advice? Thank you.
David
|
|
|
|
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!
|
05-22-2019, 12:08 PM
|
#2
|
Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: Orlando, Florida
Posts: 5,819
|
The best thing, IMO, is to run the draft tube into a "catch can" and empty the can every so often. You really don't want the old dirty oil going back into the engine/exhaust.
Of course blow-by is not a good thing (a little is normal) but if there is a enough oil blowing out the draft tube to have you worried, you may have a bigger problem coming your way.
|
|
|
05-22-2019, 12:11 PM
|
#3
|
Registered User
Join Date: Oct 2010
Posts: 2,295
|
I don't know but I can share this story. A truck I was driving years ago was emitting fumes into the cab. I asked the owner to extend the blow by tube beyond the back of the cab.
The tube clogged causing extreme use of oil. On a 1.5 hour trip the truck used 4 jugs of oil! We removed the extension and oil usage returned to normal.
|
|
|
05-22-2019, 12:51 PM
|
#4
|
Senior Member
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 5,663
|
https://www.google.com/search?q=slob...w=1152&bih=649
Do some searches on Slobber Tube. I took a blast bottle from a finished Peanut Butter Jar, cut the holes in it to slide the tube into, and for ventilation, and also zip tied it via Macgyver'd zip tied it to the tube. Have emptied it once, just for grins.
I did find that with our ISL, that when the tech adds in the full amount spec'd by Cummins - that the engines spits out about two quarts. As long as I've had the coach now, it always likes to settle and run between oil changes, about two quarts low. So, I now ask the Tech's to not top it off. The few times they do, is when I'd get some residual dripping on the pavement as the engine adjusted to where it wanted to be...
You can also buy commercial products for the slobber tube:
https://www.amazon.com/Universal-Res.../dp/B01B9G0BW0
But, the Skippy Jar works just as well !
Best to you,
Smitty
__________________
07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
|
|
|
05-22-2019, 01:39 PM
|
#5
|
Junior Member
Join Date: May 2019
Posts: 2
|
Quote:
Originally Posted by Smitty77
https://www.google.com/search?q=slob...w=1152&bih=649
Do some searches on Slobber Tube. I took a blast bottle from a finished Peanut Butter Jar, cut the holes in it to slide the tube into, and for ventilation, and also zip tied it via Macgyver'd zip tied it to the tube. Have emptied it once, just for grins.
I did find that with our ISL, that when the tech adds in the full amount spec'd by Cummins - that the engines spits out about two quarts. As long as I've had the coach now, it always likes to settle and run between oil changes, about two quarts low. So, I now ask the Tech's to not top it off. The few times they do, is when I'd get some residual dripping on the pavement as the engine adjusted to where it wanted to be...
You can also buy commercial products for the slobber tube:
https://www.amazon.com/Universal-Res.../dp/B01B9G0BW0
But, the Skippy Jar works just as well !
Best to you,
Smitty
|
Thank you. Good info.
|
|
|
05-22-2019, 02:10 PM
|
#6
|
Senior Member
Join Date: May 2017
Location: Metamora, MI
Posts: 5,525
|
Quote:
Originally Posted by Smitty77
|
Nice find! I was going to do the skippy jar equivalent, but at the price of that aluminum / filter equipped one, just not worth hacking something together. So, bought it and will install.
Thanx for the link!
__________________
2002 Newmar Mountain Aire Limited 4370 w/ Spartan K2 and Cummins 500hp
ASE Master Certified (a long.....time ago...)
|
|
|
05-22-2019, 02:14 PM
|
#7
|
Senior Member
Monaco Owners Club
Join Date: Oct 2009
Location: Tucson, AZ
Posts: 6,579
|
Tom connected his to the exhaust. Sounds like a great idea.
Post #2
http://www.irv2.com/forums/f123/ism-...er-443752.html
__________________
97 Monaco Windsor- Sold
07 Monaco Executive McKinley- Sold
04 Monaco Signature Chateau IV
|
|
|
05-22-2019, 02:18 PM
|
#8
|
Senior Member
Monaco Owners Club
Join Date: Aug 2017
Location: Orlando, Florida
Posts: 5,819
|
I would just use the catch can.
Why dump into exhaust and create a smoke trail while driving (and if you have a DPF it may damage it)?
|
|
|
05-22-2019, 02:57 PM
|
#9
|
Senior Member
Join Date: Aug 2010
Location: Over the next hill, around the next curve...
Posts: 5,663
|
The 'Skippy Jar' (Or Jar of your choice, probably best to not be glass. And be sure low enough to not be impacted by the Exhaust Pipes. Some people put a wad of fine steel wool in the bottom of the jar too. I did not.), has been shared on many forums. Probably first read it on one of the Country Coach forums, but know I've seen it here on the Cummins, and other forums too !
That's what's so cool about these boards, everyone 'pays it forward' !
Best to all,
Smitty
__________________
07 Country Coach Magna Rembrandt 45' ISX600
Roo II was our 04 Country Coach Allure 40'
OnDRoad for The JRNY! Enjoy life...
|
|
|
05-22-2019, 03:55 PM
|
#10
|
Senior Member
American Coach Owners Club
Join Date: Apr 2016
Location: North Florida
Posts: 2,474
|
I know the "Slobber Jar" followers think it's a waste of time and money, but I installed a Fleetguard open crankcase ventilation system that all stopped any blow by specks....
BTW.... bonus is I don't have to crawl under coach and empty a peanut jar or water bottle ...mines all maintenance free.
Check this :
https://r.tapatalk.com/shareLink?url...4&share_type=t
__________________
1999 American Eagle
ASE med/heavy certified technician
ASE advanced diesel certified
|
|
|
05-23-2019, 10:24 AM
|
#11
|
Moderator Emeritus
Join Date: Jan 2000
Location: West Palm Beach, FL. USA
Posts: 27,704
|
Another trick is to afix an old cotton sock to the slobber tube. The cotton mesh reduces what blows back toward the radiator or towed car by catching much of the oil while driving. Late, while stopped, the soggy sock drips most of it off so it's ready to to catch more the next day. Crude but effective.
__________________
Gary Brinck
Former owner of 2004 American Tradition and several other RVs
Home is West Palm Beach, FL
|
|
|
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Discussions |
|
|
|
|
|
|
|
|
|
|
|
|
|