Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
Sign in using an external account
Register Forgot Password?


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

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 02-15-2012, 07:19 PM
Toucan2003 Toucan2003 is offline
Freshman User
 
Join Date: Aug 2010
Posts: 26
Toucan2003 is starting off with a positive reputation.
Fuel leak at back of engine on 1994 7.3 IDI

Hey PRO'S!
I have a 1994 7.3 IDI 'K' engine in my crew cab dually. It has 90,000 miles.
Problem: I have a fuel leak at the back of the engine which is nearly a steady stream dripping on the starter side of the block. I replaced the rear injector which was leaking a small amount, but this by no means has stopped the leak.
We checked all the fuel lines as well as the pan and lines at the pump. Everything is dry, no leaks. I did find another injector began leaking, but only a very small amount. Not enough to account for the amount of fuel dripping.
What puzzles us is that if I shut off the engine and then restart it, many times the leak will stop until I start it the next time. It almost seems as though there is a switch with an electric magnet that is 'activated' by turning the key off and then back on. But I don't see or know of any such switch on the back of the engine. Sometimes shutting the key off and then back on doesn't help, sometimes it does.
Any ideas as what I need to check next?
Reply With Quote
  #2  
Old 02-15-2012, 08:20 PM
Festus Hagen's Avatar
Festus Hagen Festus Hagen is offline
Methanoholic
 
Join Date: Mar 2009
Location: Maine (NorCal Native)
Posts: 5,124
Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.
I'd bet It's comping from the valley pan drain ...

Fuel is very difficult to see, clean it, dry it, feel with your hands.

It's likely return lines or IP seals.

Like I said in the other thread, place a piece of paper under the IP, clean and dry all the injectors and return lines.

Run the motor, then feel for leaks.

If you haven't done the return lines, I would suggest doing them anyways. It fairly cheap to do. Especially if it's hard starting after it's been setting over night.

-Enjoy
fh : )_~
__________________
-= Improve Knowledge ... Share your's! =-
WANTED: Factory Turbo Wastegate Housing.
1994 F350 XLT CrewCab Dually IDIT ZF5 4.10's
1986 F250 SuperCab Dually 4WD 7.3IDI T19 BW1345 D50/60TTB Sterling 10.25 3.55's
1991 F250 StandardCab 2WD NO-IDI NO-ZF5 Sterling 10.25 NO-4.10's - Gone to the Toyota factory!
Reply With Quote
  #3  
Old 02-15-2012, 08:51 PM
Toucan2003 Toucan2003 is offline
Freshman User
 
Join Date: Aug 2010
Posts: 26
Toucan2003 is starting off with a positive reputation.
Festus:
I just went to the Pensacola Diesel website and ordered the Injector Installation kit. Since I live east of Tampa, it should be here in a couple of days.
I will super clean the pan tomorrow and wait for the kit to come and then see what happens.
Thanks for your help. I appreciate it!
Fred Smith
Reply With Quote
  #4  
Old 02-15-2012, 09:16 PM
Festus Hagen's Avatar
Festus Hagen Festus Hagen is offline
Methanoholic
 
Join Date: Mar 2009
Location: Maine (NorCal Native)
Posts: 5,124
Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.Festus Hagen has a very good reputation on FTE.
I recommend Viton o-rings as well ... Like: Viton Return O-Rings - McMaster-Carr Item 9464K24

They hold up much better.

That being an IDIT, I do not like the return layout on them, the factory return layout leaves the #7 Injector dead headed without return fuel flow.

I prefer the 7.3 IDI layout.
Read this: 94 7.3 turbo idi injection return lines

-Enjoy
fh : )_~
__________________
-= Improve Knowledge ... Share your's! =-
WANTED: Factory Turbo Wastegate Housing.
1994 F350 XLT CrewCab Dually IDIT ZF5 4.10's
1986 F250 SuperCab Dually 4WD 7.3IDI T19 BW1345 D50/60TTB Sterling 10.25 3.55's
1991 F250 StandardCab 2WD NO-IDI NO-ZF5 Sterling 10.25 NO-4.10's - Gone to the Toyota factory!
Reply With Quote
  #5  
Old 02-16-2012, 06:30 AM
tjc transport's Avatar
tjc transport tjc transport is offline
i ain't rite
 
Join Date: Mar 2005
Location: Marlboro Mental Hospital
Posts: 32,937
tjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputationtjc transport has a superb reputation
also pay close attention to the return line that goes down the back of the block back to the selector valve.
__________________
Tom

rarely in life do you meet a person that will drop everything to help a stranger,
and give the shirt off his back to a friend.
Steve Price was that kind of person.
Godspeed "window licker", the short bus will never be the same with you gone.
Reply With Quote
Old 02-16-2012, 06:30 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)

Tags
1994, 73, 73idi, 73l, back, diesel, direction, engine, flow, fuel, head, idi, leak, line, lines, retun, return

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
1990 f250 diesel leaking tigerblood 1987 - 1996 F150 & Larger F-Series Trucks 5 10-04-2013 09:09 AM
1994 7.3 IDI turbo fuel system problem jgrzebin 1987 - 1996 F150 & Larger F-Series Trucks 2 11-28-2011 10:34 AM
Diesel Newbie - I Changed my IP and Injectors - You Can Too 38Chevy454 Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 18 05-27-2011 09:29 PM
fuel filter reservoir leaking 99 7.3 diesal Zephyrhills Ford 1999 - 2003 7.3L Power Stroke Diesel 5 12-06-2010 02:58 PM
Radiator Leak Spotty 1997 - 2003 F150 3 05-03-2007 04:20 AM



All times are GMT -5. The time now is 08:35 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup