Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help




Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 10-07-2009, 06:38 PM
Registered User
 
Join Date: Aug 2007
Location: Vallejo,CA
Posts: 194
My IP is leaking diesel, help

The injection pump on my 1987 300D sprung a pretty sizable fuel leak coming from the side plate that is secured with regular bolts with flat head screw driver slots in them. It seems to me it's a pretty straight forward access. What type of seal does it take and where can I get one?
I pretty much tackled all the small oil leaks, and now this!
__________________
1987 300D
2005 E320 CDI
Reply With Quote
  #2  
Old 10-07-2009, 07:59 PM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 24,143
Quote:
Originally Posted by BLACKCDI View Post
The injection pump on my 1987 300D sprung a pretty sizable fuel leak coming from the side plate that is secured with regular bolts with flat head screw driver slots in them. It seems to me it's a pretty straight forward access. What type of seal does it take and where can I get one?
I pretty much tackled all the small oil leaks, and now this!
The above describes the Cover Bolts. In the attached pic below a red arrow points at the Fuel Inectin Pump cover. There is no Fuel behind that cover. That part of the Fuel Injection Pump is lubricated by the Engine Oil.
(In order for Fuel to come out of that cover you would have to have a serious leak inside of your Fuel Injection Pump and you would be getting Fuel mixed in with your Engine Oil. Check your the Engine Oil level in your Engine; if it is rising above what it was you yave such a leak.)

More likely Fuel is runing down from the top of the Fuel Injection Pump and onto the cover. Clean and degrease the (Cold) Fuel Injection Pump. When it is dry run the Engine a see where the leak is coming from.

Here is the site where I got the pic from; select your vehicle:
http://www.detali.ru/cat/oem_mb0.asp?TP=1
Attached Thumbnails
My IP is leaking diesel, help-zzz-ip.jpg  
__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
  #3  
Old 10-07-2009, 08:23 PM
babymog's Avatar
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,767
Yes, check oil level.

I can tell you from experience that having fuel/oil mix fill the crankcase to the point where the crank hits it, is a bad case of runaway that the fuel shutoff will not affect.
__________________

Gone to the dark side

- Jeff
Reply With Quote
  #4  
Old 10-07-2009, 08:36 PM
scottmcphee's Avatar
1987 w124 300D
 
Join Date: Mar 2008
Location: Edmonton, Canada
Posts: 1,533
If it's coming out the side cover, get the gasket from MB parts.
There are 2 styles of plate, therefore 2 gaskets. I bought both not knowing, so in the end I have a spare gasket I will never use.. if you need the part, it's yours.
__________________
Cheers!
Scott McPhee

1987 300D
Reply With Quote
  #5  
Old 10-07-2009, 09:27 PM
babymog's Avatar
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,767
Like your sig Scott.
__________________

Gone to the dark side

- Jeff
Reply With Quote
  #6  
Old 10-07-2009, 09:57 PM
Registered User
 
Join Date: Aug 2007
Location: Vallejo,CA
Posts: 194
I am starting to get worried, checked my oil lever on cold and it seems higher than normal but not by much. I really don't have time to take out the ip pump, this would be a real bummer! I will monitor the level. Checked the top of the ip, looks clean. But I will clean it and check again!
__________________
1987 300D
2005 E320 CDI
Reply With Quote
  #7  
Old 10-07-2009, 11:48 PM
Registered User
 
Join Date: Aug 2007
Location: Vallejo,CA
Posts: 194
Just cleaned the IP and it seems the fuel leak is actually coming from some kind of valve gasket right below that cover, in the pic below it has an arrow ponting to it. That valve has a fuel line going right to it. The cover does have a small oil leak it seems, but can't really tell right now so Scott I sent you a pm for that spare gasket! Thanks!
Keeping my fingers crossed that I don't have an internal fuel leak, cause that would suck!
Attached Thumbnails
My IP is leaking diesel, help-zzz%2520ip.jpg  
__________________
1987 300D
2005 E320 CDI
Reply With Quote
  #8  
Old 10-08-2009, 09:46 AM
babymog's Avatar
Loose Cannon - No Balls
 
Join Date: Jan 2006
Location: Northeast Indiana
Posts: 10,767
Lift pump.
__________________

Gone to the dark side

- Jeff
Reply With Quote
  #9  
Old 10-08-2009, 11:05 AM
Diesel911's Avatar
Registered User
 
Join Date: Sep 2007
Location: Long Beach,CA
Posts: 24,143
Take an even closer look. The older Fuel supply/Lift Pumps had Copper or Aluminum Crush washer type gaskets and if so on yours you sould be able to see the Copper or Aluminum. If it has this type of gasket carefully tighten it a little.

If not your Fuel Supply Pump uses rubber O-rings to seal that area and if it is leaking you can replace the O-Ring; tightening it would not help.

You take the numbers from the Number Plate on your Fuel Injection Pump and if the Fuel Supply Pump has its own number plate and go to any Boach Autorized Fuel Injection Shop and they can get the parts you need.

Also some of the new models usse O-rings to seal their Fuel Line connections; so that could be another source of leaks.
__________________
84 300D, 82 Volvo 244Gl Diesel
Reply With Quote
  #10  
Old 10-08-2009, 11:48 AM
Oldwolf's Avatar
124.128/602.962/722.418
 
Join Date: Apr 2009
Location: Raleigh, NC
Posts: 1,017
I think Peach Parts here has a rebuild kit for your pump.
__________________
1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png
Reply With Quote
Reply

Bookmarks

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:46 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2018, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page