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 06-01-2004, 04:31 PM
WannaWagon's Avatar
Registered User
 
Join Date: Apr 2004
Location: Sacto.
Posts: 443
Question about fuel bleeding...

I'm a newbie to the diesel Benz world and just installed new fuel filters yesterday. Then I bled the fuel system using the hand pump on the engine. I'm not sure I did this right.

I loosened the nut atop the spin-on fuel filter and pumped until the bubbles seemed to stop coming out below the nut. But I kept seeing air in the clear fuel line that runs from the IP to the spin-on filter. Also, the hand pump was making a whistling or squeeking sound that led me to believe maybe the hand pump is bad. There was also an air bubble that I couldn't get out of the clamp-on prefilter.

Is all of this normal, or did I do something wrong?

Thx in advance everybody!

__________________
'81 300TD turbo <<sold 12/05 to another diesel nut
Reply With Quote
  #2  
Old 06-01-2004, 04:39 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,281
Did your engine start and run ?
Reply With Quote
  #3  
Old 06-01-2004, 05:04 PM
ak300td's Avatar
Registered User
 
Join Date: Nov 2003
Posts: 164
The air bubble in the prefilter is normal, and as I understand it, squeaking in the hand pump is a sign that you've got things pressurized and are moving fluid.

If it runs, then you're good to go!
__________________
1983 300td 240k (down with bad tranny)
1984 300d 222k (daily driver) "Olive"
1997 GMC K2500 105k (sled dog limo)

"The scenery in ANWR is as spectacular as the Grand Canyon and the wildlife is more impressive."
Reply With Quote
  #4  
Old 06-01-2004, 05:10 PM
JamesStein's Avatar
Registered User
 
Join Date: Apr 2004
Location: Tallahassee, FL
Posts: 586
With a return fuel line a little air in the lines really isn't a problem. I just replumbed my system and added a switch valve for running on WVO. Didn't bleed anything despite having a little air in the diesel line. I then added oil to my 2nd tank.. and literally sucked the oil from the trunk and filled my Racor filter without bleeding. That said I only had the oil tank switched on for about 20 second intervals till I had cleared the air from the lines. The engine didn't sputter at all.
__________________
'84 300CD Turbo 132k (Anthracite Grey) - WVO - My daily driver - Recently named coo-coo-coupe by my daughter.
'84 300D Turbo 240k (Anthracite Grey) - Garage Queen
'83 300D Turbo 220k (Orient Red) - WVO - Wifes daily driver

I'm not a certified mechanic, but I did stay at a HolidayInn Express last night.
Reply With Quote
  #5  
Old 06-01-2004, 05:30 PM
WannaWagon's Avatar
Registered User
 
Join Date: Apr 2004
Location: Sacto.
Posts: 443
Yes! She started and ran fine after the filter swap and bleeding. So it sounds like I'm good to go...?
__________________
'81 300TD turbo <<sold 12/05 to another diesel nut
Reply With Quote
  #6  
Old 06-01-2004, 07:20 PM
Registered User
 
Join Date: Sep 2001
Location: central Texas
Posts: 17,281
Yes, no matter what you did..... if it starts and runs all is well.

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 06:04 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, 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