Removing injectors? - PeachParts Mercedes-Benz Forum

mulchman · #1 02-21-2010, 02:51 PM

How do you remove injectors what kind of wrench do I use?

Scott98 · #2 02-21-2010, 03:01 PM

Quote:

Originally Posted by mulchman

How do you remove injectors what kind of wrench do I use?

Put the vehicle(s) you own in your signature so we know what kind of car you're talking about. You'll get more responses.

Assuming you own one with a 616 or 617, this should help:

http://www.dieselgiant.com/mercedesinjectornozzlereplace.htm

Scott

my123ca · #3 02-21-2010, 03:02 PM

I used a 1/2" 27mm deep craftsman socket attached to a 12" extension bar.

Diesel911 · #4 02-21-2010, 03:22 PM

I looked at the Diesel Giant site and decided to say something. Sorry for the blury picture.

You will need a 1-1/16 or 27mm Deep Socket. However, some of the less expensive Deep Sockets have a reduced area and metal in the upper part of the socket. Sometimes that bends the little Fuel Return Barbs/Nipples.

In the blury pic is the Craftsman Deep socket that have been using on Injectors since around 1975. Looking inside you see it is deep all the way to the end of the socket except for the square hole needed for the 1/2 inch drive.

Buy some Injector Fuel Return Hose before you start the Job as the local part places do not have it. The exception I have been told is NAPA Sells it.
If you buy the Injector Heat Shields locally they will cost $3 or more each.

Where to buy fuel return hose
http://www.peachparts.com/shopforum/showthread.php?t=238219&highlight=Rabbit
The Thread with the part numbers
http://www.peachparts.com/shopforum/showthread.php?t=210922&highlight=return+line+part+number

After you install your Injectors you will need to Bleed the Air out of the Fuel Injection Hard Lines. Simply run the Injector end hard line Nuts down till the bottom and then back them off a turn or 2 to leave them loose.
Crank the Engine until fuel is coming out of all of them and then tighten them; and try to start the Engine.
(Besides pumping on the Hand Primer to clear the Air out of the Fuel Injection Pump Housing the above Bleeding Process needs to be done if you have run completely out of Fuel.)

Diesel911 · #5 02-21-2010, 03:27 PM

This forum should also have something on that:
Repair Links
http://www.peachparts.com/shopforum/forumdisplay.php?f=82

http://www.peachparts.com/Wikka/DoItYourSelf

brownrice78 · #6 02-22-2010, 02:46 PM

Quote:

Originally Posted by Diesel911

I looked at the Diesel Giant site and decided to say something. Sorry for the blury picture.

You will need a 1-1/16 or 27mm Deep Socket. However, some of the less expensive Deep Sockets have a reduced area and metal in the upper part of the socket. Sometimes that bends the little Fuel Return Barbs/Nipples.

In the blury pic is the Craftsman Deep socket that have been using on Injectors since around 1975. Looking inside you see it is deep all the way to the end of the socket except for the square hole needed for the 1/2 inch drive.

Buy some Injector Fuel Return Hose before you start the Job as the local part places do not have it. The exception I have been told is NAPA Sells it.
If you buy the Injector Heat Shields locally they will cost $3 or more each.

Where to buy fuel return hose
http://www.peachparts.com/shopforum/showthread.php?t=238219&highlight=Rabbit
The Thread with the part numbers
http://www.peachparts.com/shopforum/showthread.php?t=210922&highlight=return+line+part+number

After you install your Injectors you will need to Bleed the Air out of the Fuel Injection Hard Lines. Simply run the Injector end hard line Nuts down till the bottom and then back them off a turn or 2 to leave them loose.
Crank the Engine until fuel is coming out of all of them and then tighten them; and try to start the Engine.
(Besides pumping on the Hand Primer to clear the Air out of the Fuel Injection Pump Housing the above Bleeding Process needs to be done if you have run completely out of Fuel.)

X2. Definitely use a breaker bar for leverage in getting them off.