Notices
Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

Injector question/problem

Old Nov 22, 2010 | 01:20 PM
  #1  
EffieU's Avatar
EffieU
Thread Starter
|
New User
Joined: Apr 2004
Posts: 12
Likes: 0
Injector question/problem

I just bought a 1993 Ford F250 with the 7.3 IDI diesel at a very good price. The back two Injectors are leaking. I replaced the return line t-valves and it still leaks. What could be the reason I have this leak?
 
Reply
Old Nov 22, 2010 | 01:53 PM
  #2  
FORDF250HDXLT's Avatar
FORDF250HDXLT
Fleet Owner
15 Year Member
Community Builder
Liked
Community Favorite
Joined: Jul 2006
Posts: 20,359
Likes: 815
From: Mi'kma'ki
Old Nov 22, 2010 | 02:24 PM
  #3  
93f250idi's Avatar
93f250idi
New User
Joined: Nov 2010
Posts: 11
Likes: 0
the copper washers under the injectors are probably the problem. pull the injectors out and put new washers in there. not sure if you can use any copper washer or if it has to be special?
 
Reply
Old Nov 22, 2010 | 03:23 PM
  #4  
catfish101's Avatar
catfish101
Posting Guru
Joined: Mar 2005
Posts: 1,701
Likes: 0
From: KY
The only thing the copper washers are going to leak is compression.....Has to be an oring or the fuel line if the nozzle body isn't damaged....
 
Reply
Old Nov 22, 2010 | 04:00 PM
  #5  
starmilt's Avatar
starmilt
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
X2. How are you doing catfish. My money is either a cut oring or the T's are not properly seated. The threads on the injector can also be cross threaded.
 
Reply
Old Nov 22, 2010 | 08:58 PM
  #6  
Sycostang67's Avatar
Sycostang67
Lead Driver
20 Year Member
Liked
Loved
Joined: Dec 2002
Posts: 5,491
Likes: 16
From: Kuna ID
I would also check the cone at the end of the injector hard line. I had a truck with a cross threaded injector, changed the injector and it still leaked. Cross threading it had changed the angle the line met with the injector and put a new groove in it when the PO over tightened it trying to stop the leak. I had to replace the hard line as well and no more leaking.
 
Reply
Old Nov 25, 2010 | 09:26 PM
  #7  
EffieU's Avatar
EffieU
Thread Starter
|
New User
Joined: Apr 2004
Posts: 12
Likes: 0
Fixed IT! It was an O-Ring! Thanks for the help!
 
Reply


Thread Tools
Search this Thread

All times are GMT -5. The time now is 08:14 PM.

story-0
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-1
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-2
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE
story-3
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

And it might be even better than that.

By Brett Foote | 2026-05-18 19:26:42


VIEW MORE
story-4
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Slideshow: Does lowering an F-150 Lobo RUIN the ride quality?

By Michael S. Palmer | 2026-05-18 19:20:37


VIEW MORE
story-5
Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Slideshow: Ford's bizarre fishing-themed Explorer concept has resurfaced after spending decades largely forgotten.

By Verdad Gallardo | 2026-05-12 18:07:46


VIEW MORE
story-6
10 Best Ford Truck Engines We Miss the Most!

Slideshow: The 10 best Ford truck engines we miss the most.

By Joe Kucinski | 2026-05-12 13:09:47


VIEW MORE
story-7
2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Slideshow: first look at the 810 hp 2026 Shelby F-150 Off-Road!

By Brett Foote | 2026-05-12 12:50:07


VIEW MORE
story-8
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Slideshow: Everything You Need to Know about the 2027 Super Duty Carhartt Package!

By Michael S. Palmer | 2026-05-07 17:51:06


VIEW MORE
story-9
10 Most Surprising 2026 Ford Truck Features!

Slideshow: 10 most surprising Ford truck options/features in 2026.

By Joe Kucinski | 2026-05-05 11:17:22


VIEW MORE