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 > Vintage Mercedes Forum

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-05-2013, 10:31 AM
Redefining normal daily
 
Join Date: Jul 2004
Location: Frederick, MD
Posts: 445
Fuel pump location - 72 280SE 4.5

Gustav cranks, but won't fire. Getting spark, and air is a given, so assuming (as a starting point anyway ) that he ain't getting fuel.

Darling Wife drove him to the barn just fine, 3 hours later when she goes to leave, this kicks in.

Going to head out today to see what's what - thinking maybe fuel pump (or circuit to the fuel pump). Realized I don't know where his fuel pump is located.

Any hints?
__________________
1961 220b: first project car - sold.
2000 CLK 430: first modern Benz - sold.
2001 CLK 55: OMG the torque!!! - sold
1972 280SE 4.5: Baby Gustav
1991 300TE 4Matic: Gretel the Snow Bunny - sold
1978 300SD: Katz the Free Man
1980 Redhead: Darling Wife
Reply With Quote
  #2  
Old 04-05-2013, 10:47 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,554
Jim, you're such a cad! I can't believe you make DW go out to get her own car. You should have the car started, warmed up, fueled, polished and waiting at the front door for her! Honestly, I don't know why she puts up with such poor treatment from you!

The pump should be located in front of the fuel tank under the car. You should hear it "whir" when you turn the key to the "run" position. Many times you can give a bit of a tap and it'll start working.
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
Reply With Quote
  #3  
Old 04-05-2013, 11:05 AM
Tomguy's Avatar
Vintage Moderator
 
Join Date: Aug 2002
Location: near Scranton, PA
Posts: 5,178
There is a secondary wire @ the battery (+) terminal. This powers pretty much the entire D-Jet system including the fuel pump. Check this for corrosion or looseness first. After that the fuel pump is in a housing right in front of the tank. Like Mike says a tap on it may help. The fuel pump relay is on the board the ECU is mounted on and is a bit of a pain to get to. A tap on it may help as well.
__________________
Current:
2018 Chrysler Pacifica Limited
1999 Chrysler 300M - 214,141+ miles

Previous:
1972 280SE 4.5
2014 Jeep Grand Cherokee Limited "Hefe", 1992 Jeep Cherokee Laredo "Jeepy", 2006 Charger R/T "Hemi"
Reply With Quote
  #4  
Old 04-05-2013, 11:43 AM
Registered User
 
Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,554
Quote:
Originally Posted by Tomguy View Post
There is a secondary wire @ the battery (+) terminal. This powers pretty much the entire D-Jet system including the fuel pump. Check this for corrosion or looseness first.
And THAT post leads directly into one of your previous questions about a battery drain problem. Mayhaps the two are connected?
__________________
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
Reply With Quote
  #5  
Old 04-05-2013, 09:07 PM
Redefining normal daily
 
Join Date: Jul 2004
Location: Frederick, MD
Posts: 445
Well then - followed the wire off the battery + terminal, whacked the relay in it's general vicinity, hit the go button, and.....

VRRROOOOMMM!!!!!

Good gracious sakes alive, I love this car. Half an hour of mindless cruising about followed the "repair" work I did.

Dark current remains at essentially zero, with fuse #1 removed. Gonna call this good enough for now and just enjoy spring time rollin' with the windows down.

Thanks muchly for the pointers!
__________________
1961 220b: first project car - sold.
2000 CLK 430: first modern Benz - sold.
2001 CLK 55: OMG the torque!!! - sold
1972 280SE 4.5: Baby Gustav
1991 300TE 4Matic: Gretel the Snow Bunny - sold
1978 300SD: Katz the Free Man
1980 Redhead: Darling Wife
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 02:40 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, 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