Sprinter-Forum    
 

Go Back   Sprinter-Forum > NCV3 Sprinters > NCV3 Talk

NCV3 Talk General Discussions related to NCV3 Sprinters.


 
Thread Tools Display Modes
Old 09-11-2019, 11:19 AM   #1
ScoCan
 
Join Date: May 2013
Location: Pacific Northwest
Posts: 73
Thanks: 67
Thanked 34 Times in 23 Posts
Default Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Van is dead in the yard.

While doing a fuel filter replacement on our 2014 NCV3 OM642.896 3.0L I managed to snap off the passenger side of the leak oil line at the "tee" which is directly forward of the fuel filter.

The leak line is a low pressure line used to return unused fuel from the injectors.

The OEM leak line is an assembly -- cost about $120-$140

From reading various posts there appears to be 3 main ways to fix this:
1. Replace the broken tee and associated leak line with a new assembly (MB A642 070 81 32)
2. Replace the broken tee and a portion of the assembly, using 1/8" hose barb slices - i.e. cut up a new assembly, transplant the good section in to replace the bad section.
3. Replace just the Tee -- first cut the Tee barbs off the Tee - leaving them glued into the hose, then carefully drill out the hose.

Option 1: My understanding is that replacing the entire leak line is hellish, but doable with much profanity and band-aids. I'd love to hear from anyone who has done it.

Option 2: means cutting up a shiny new assembly

Option 3: I'd love to try this one. I believe that MB uses the Bosch Common Rail 110 Series form factor, and the 'Flag 80 1169' should fit right in.
Anyone have experience with this?
Anyone know a source of Flag Injection System parts in North America?

Thanks!
Scott




This appears to be rather common, here are other threads:
https://sprinter-source.com/forum/sh...ad.php?t=72311
https://sprinter-source.com/forum/sh...d.php?p=557012
Attached Images
File Type: jpg Broken Tee (Large).jpg (83.5 KB, 115 views)
File Type: jpg Flag Common Rail Repair Kits.jpg (42.4 KB, 109 views)
File Type: jpg 80 1169.jpg (426.1 KB, 103 views)
Attached Files
File Type: pdf Leak Oil Line A642 070 81 32 - Image.pdf (88.5 KB, 30 views)
File Type: pdf Leak Oil Line A642 070 81 32.pdf (46.0 KB, 14 views)
ScoCan is offline   Reply With Quote
Old 09-11-2019, 12:14 PM   #2
Mike DZ
2016 View 24V (2015 3500)
 
Join Date: Oct 2016
Location: Virginia
Posts: 895
Thanks: 101
Thanked 497 Times in 345 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

RE Flag Systems - I can see how the pictured parts would be very useful - all I can find on Flag Systems is their web page - perhaps calling the phone number there would be an approach - http://flagna.com/ 1-800-PARTS99
__________________
2016 View 24V (2015 3500) towing a 2016 Sonic Hatchback
Mike DZ is online now   Reply With Quote
Old 09-11-2019, 01:46 PM   #3
CJPJ
2008 3500 170"ext. 3.0L
 
CJPJ's Avatar
 
Join Date: May 2010
Location: Contra Costa California, Douglas County, Oregon
Posts: 3,838
Thanks: 3,800
Thanked 1,949 Times in 1,275 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

image.jpg
CJPJ is offline   Reply With Quote
The Following 2 Users Say Thank You to CJPJ For This Useful Post:
eeazye (09-11-2019), ScoCan (09-11-2019)
Old 09-11-2019, 08:19 PM   #4
Redpillar
 
Join Date: Nov 2015
Location: Nanaimo B.C.
Posts: 198
Thanks: 308
Thanked 36 Times in 25 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

I did the same thing, it is apparently a common thing for the first time fuel filter change.. I ended up having the entire line replaced. That brass T looks like an easier and much less expensive option but the broken parts are pretty tough to get out of the line.
I think there is still a string of expletives flying through the cosmos when I did that. Neighbourhood moms were herding their kids back into their houses..
Redpillar is offline   Reply With Quote
Old 09-12-2019, 01:22 PM   #5
capav8r
 
Join Date: Jan 2016
Location: Johnston, IA
Posts: 17
Thanks: 17
Thanked 9 Times in 6 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

I broke mine at my first filter change, too. I took the long route and replaced the entire assembly, along with all of the seals in the charge air side of things, since all of that had to come apart during the process. One thing I will do at the next fuel filter change is to disconnect the leak line "T" so that it isn't rigid and would be much less likely to break due to being bumped.
__________________
2015 Sprinter 3500-Coachmen Prism Class C
capav8r is offline   Reply With Quote
Old 09-14-2019, 07:34 AM   #6
ScoCan
 
Join Date: May 2013
Location: Pacific Northwest
Posts: 73
Thanks: 67
Thanked 34 Times in 23 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Quote:
Originally Posted by Redpillar View Post
I did the same thing, it is apparently a common thing for the first time fuel filter change.. I ended up having the entire line replaced. That brass T looks like an easier and much less expensive option but the broken parts are pretty tough to get out of the line.
I think there is still a string of expletives flying through the cosmos when I did that. Neighbourhood moms were herding their kids back into their houses..
Thanks @Redpillar, did you end up taking it into the shop? Mind saying what the damage was?
ScoCan is offline   Reply With Quote
Old 09-14-2019, 07:42 AM   #7
ScoCan
 
Join Date: May 2013
Location: Pacific Northwest
Posts: 73
Thanks: 67
Thanked 34 Times in 23 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Quote:
Originally Posted by capav8r View Post
I broke mine at my first filter change, too. I took the long route and replaced the entire assembly, along with all of the seals in the charge air side of things, since all of that had to come apart during the process. One thing I will do at the next fuel filter change is to disconnect the leak line "T" so that it isn't rigid and would be much less likely to break due to being bumped.
Thanks @capav8r, that is looking to be my plan as well. I have not looked into the seals in the charge air side of things, do they need to be replaced anytime they are disturbed?

Overall, how many hours did you have into replacing the leak line, and how would you rate the difficulty? I've rebuilt engines in the past, but it has been a long time and truth be told, the OM642 is the most computer controlled engine I've ever worked on.

Trying to get a feel from anyone whose done this about how 'real world' difficult it is.

Thanks!
ScoCan is offline   Reply With Quote
Old 09-16-2019, 12:52 PM   #8
capav8r
 
Join Date: Jan 2016
Location: Johnston, IA
Posts: 17
Thanks: 17
Thanked 9 Times in 6 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Hi Scott. All in all it was not a terrible job. Maybe 2 or 3 hours. I know for certain that the seal at the front (intake) side of the turbo is a "must replace" anytime it is disturbed. I am not sure if the rest of the seals downstream of the turbo are "must do" items, but for the cheap cost of the parts, I did replace all of them. I also replaced the o-rings on each of the injectors, where the leak line attaches. Someone on the forum had a source for the o-rings that was literally pennies each.

I can also tell you that the diagram above from CJPJ is not the same connector that my 2015 has. They are the ones in this photo. The part number for the leak line for my 2015 was A6420708132

Matt
Attached Images
File Type: jpg 20190419_123539.jpg (30.0 KB, 38 views)
__________________
2015 Sprinter 3500-Coachmen Prism Class C

Last edited by capav8r; 09-16-2019 at 12:57 PM. Reason: Add more info
capav8r is offline   Reply With Quote
The Following 2 Users Say Thank You to capav8r For This Useful Post:
CJPJ (09-16-2019), ScoCan (09-17-2019)
Old 09-17-2019, 06:13 PM   #9
Flagster
 
Join Date: Feb 2013
Posts: 289
Thanks: 215
Thanked 62 Times in 52 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Is the difficulty in replacing that in that you can't remove the broken piece inside the line?
Flagster is offline   Reply With Quote
Old 09-17-2019, 06:32 PM   #10
Redpillar
 
Join Date: Nov 2015
Location: Nanaimo B.C.
Posts: 198
Thanks: 308
Thanked 36 Times in 25 Posts
Default Re: Broke the Fuel Return/Leak Oil Line "Tee" doing a filter change - Ideas?

Quote:
Originally Posted by ScoCan View Post
Thanks @Redpillar, did you end up taking it into the shop? Mind saying what the damage was?
I did take it in to have the line replaced..
Redpillar is offline   Reply With Quote

Thread Tools
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

Forum Jump



All times are GMT. The time now is 12:59 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2019, vBulletin Solutions, Inc.