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 > Tech Help

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-04-2004, 08:00 PM
Dave Horvath's Avatar
Registered User
 
Join Date: May 2000
Location: Ohio
Posts: 132
Gas Fumes 1989 300SE

The car will not be used for a number of days and when it is put in the garage after even a small trip it has a very strong odor of fuel. The odor can also be detected inside the car while driving. No obvious leaks or drips and has been to the shop twice and no problem found.

Reply With Quote
  #2  
Old 02-04-2004, 08:22 PM
Registered User
 
Join Date: Dec 2003
Posts: 238
Dave,
The EHA, electro-hydraulic actuator on the fuel distributor is often overlooked. It will seep enough gas to bug you but not enough to reach the ground. Remove you air cleaner and see if your fuel dist. has a pinkish/yellowish hue. If so the EHA could be the culprit. (EHA, black box on side of fuel dist. with a two wire connector)
__________________
Paul
Reply With Quote
  #3  
Old 02-04-2004, 09:40 PM
Senior Member
 
Join Date: Nov 2002
Posts: 829
if the injectors are leaking, they leak into the intake and run downhill to the plenum under the airflow meter. it's very common for the eha, fuel dist and injectors ALL to be leaking. good luck, chuck.
Reply With Quote
  #4  
Old 02-04-2004, 10:18 PM
benzfan's Avatar
Registered User
 
Join Date: May 2001
Location: Toronto
Posts: 277
The EHA is made from Bakelite, I believe, and can develop hairline cracks from years of heat. You cannot detect them sometimes, but the fuel seeps out nonetheless. I had a particularly difficult time finding the source of a persistent fuel odor in my 190e many years ago. The EHA appeared OK, but when I changed it, the smell was gone and the car ran better.
Reply With Quote
  #5  
Old 02-06-2004, 07:17 PM
Dave Horvath's Avatar
Registered User
 
Join Date: May 2000
Location: Ohio
Posts: 132
Thank you for your help. The EHA unit was wet with gas. This looks like something I can replace myself. Two torx screws and a plug.
Reply With Quote
  #6  
Old 02-06-2004, 10:15 PM
benzfan's Avatar
Registered User
 
Join Date: May 2001
Location: Toronto
Posts: 277
Yes, it is easy, but be aware the fuel you will release is under some pressure. Have a good rag handy. Also, make sure you use ONLY the correct MB O-rings to seal the 2 passages. No other O-ring I was able to find from any other source was quite the same. I had some last for a few weeks, but ultimately the MB ones are best. Don't lose them. Leave a clean rag underneath during reassembly to catch the errant one.

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 08:24 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page