E90Post
 


The Tire Rack
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Gas residue on top of injector



Reply
 
Thread Tools Search this Thread
      02-24-2020, 11:40 AM   #1
billowusu
Private First Class
billowusu's Avatar
17
Rep
147
Posts

Drives: BMW 335xi
Join Date: Dec 2019
Location: Columbus, Ohio

iTrader: (0)

Gas residue on top of injector

I replaced all 6 injectors with index 12. The injector 1 seems to be seeping gas. The fuel line has been tightened down so I really don't know what is causing this. Any suggestions?
Attached Images
 
Appreciate 0
      02-25-2020, 11:35 AM   #2
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

I can't really tell anything by that picture, but my first step would be to wipe everything down and then start it up and see if you can pinpoint exactly where it's leaking.
Appreciate 0
      02-25-2020, 11:47 AM   #3
billowusu
Private First Class
billowusu's Avatar
17
Rep
147
Posts

Drives: BMW 335xi
Join Date: Dec 2019
Location: Columbus, Ohio

iTrader: (0)

Quote:
Originally Posted by stewbets View Post
I can't really tell anything by that picture, but my first step would be to wipe everything down and then start it up and see if you can pinpoint exactly where it's leaking.
It's leaking from this part
Attached Images
 
Appreciate 0
      02-25-2020, 11:53 AM   #4
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

Well that sounds like a warranty issue. Can you get a replacement?
Appreciate 0
      02-25-2020, 11:56 AM   #5
billowusu
Private First Class
billowusu's Avatar
17
Rep
147
Posts

Drives: BMW 335xi
Join Date: Dec 2019
Location: Columbus, Ohio

iTrader: (0)

Quote:
Originally Posted by stewbets View Post
Well that sounds like a warranty issue. Can you get a replacement?
Unfortunately I can't.
Appreciate 0
      02-25-2020, 11:59 AM   #6
feuer
Major General
feuer's Avatar
United_States
4276
Rep
9,206
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by stewbets View Post
Well that sounds like a warranty issue. Can you get a replacement?
Why do you think is the injector? I either mis installment, like fuel line isn't align correctly or debries, or the line itself is damaged.
Appreciate 0
      02-25-2020, 12:06 PM   #7
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

Quote:
Originally Posted by feuer View Post
Why do you think is the injector? I either mis installment, like fuel line isn't align correctly or debries, or the line itself is damaged.
The second picture he provided points to a leak in the lower threaded portion of the injector itself, not the upper threads that connect to the fuel rail.
Appreciate 0
      02-25-2020, 12:07 PM   #8
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

Quote:
Originally Posted by billowusu View Post
Unfortunately I can't.
Have you tried tightening those threads? I have no idea what the torque spec is on them, but I imagine it's higher than the fuel rail spec.
Appreciate 0
      02-25-2020, 12:10 PM   #9
billowusu
Private First Class
billowusu's Avatar
17
Rep
147
Posts

Drives: BMW 335xi
Join Date: Dec 2019
Location: Columbus, Ohio

iTrader: (0)

Quote:
Originally Posted by stewbets View Post
Quote:
Originally Posted by billowusu View Post
Unfortunately I can't.
Have you tried tightening those threads? I have no idea what the torque spec is on them, but I imagine it's higher than the fuel rail spec.
I've tried. The injector it self seems busted. The only one leaking.
Appreciate 0
      02-25-2020, 12:22 PM   #10
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

Bummer. If I was sure it was leaking from the injector itself and I had no warranty recourse, I would unscrew that problematic fuel fitting and try coating the threads with JB Weld before torquing it back down. I haven't tried that before and maybe it's a stupid idea, but I'd give it a shot and closely monitor it for a little while.
Appreciate 1
feuer4275.50
      02-25-2020, 12:24 PM   #11
feuer
Major General
feuer's Avatar
United_States
4276
Rep
9,206
Posts

Drives: wife crazy!
Join Date: Apr 2015
Location: Chicago, IL

iTrader: (5)

Quote:
Originally Posted by stewbets View Post
The second picture he provided points to a leak in the lower threaded portion of the injector itself, not the upper threads that connect to the fuel rail.
That is going to be first! These might be those refurbished units then. I would try taking it apart and using something like Permatex 59235 or other sealant.
Appreciate 0
      02-25-2020, 12:28 PM   #12
stewbets
Captain
449
Rep
823
Posts

Drives: '08 335xi, '04 545i
Join Date: Sep 2019
Location: Dayton, OH

iTrader: (0)

Quote:
Originally Posted by feuer View Post
That is going to be first! These might be those refurbished units then. I would try taking it apart and using something like Permatex 59235 or other sealant.
Ah yes, that Permatex stuff sounds like the right choice for the job!
Appreciate 0
Reply

Bookmarks


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



All times are GMT -5. The time now is 10:13 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST