1999 - 2003 7.3L Power Stroke Diesel  
Sponsored by:
Sponsored by: DP Tuner

Clean out fuel rails before intalling new injectors | Injector inspection and rebuild

Thread Tools
 
Search this Thread
 
  #1  
Old 03-20-2019, 05:59 AM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Exclamation Injector inspection and rebuild

Hello, I have a 99.5 F350 and the injector seals are shot.
When I first got it I changed the fuel filter and there was quite a bit of sludge and mud in the bowl.
I cleaned it out but underneath the "stand pipe" there was evidence the dirt made it past the filter.
I cleaned it out and put a new filter and got the truck going but I lost a gallon of oil the other day into the fuel tank just iding it.
The truck has no power and a bad miss.
I plan on doing the icp and valve cover gaskets and looms next payday.


I did drop the tank and rebuilt the sending unit for the gauge and cleaned the 2 filters in the pick up, scrubbed the tank clean with soap and water and dried it out.

I'm going to rebuild the injectors but I'm worried about debris getting into them after I rebuild them.

Is there a method of cleaning the fuel passages in the engine?


thanks!

I have this kit coming the next few days.

Images of the truck.

Name:  BxkdJLn.jpg
Views: 172
Size:  579.9 KB
Name:  3QiPLwb.jpg
Views: 156
Size:  479.1 KB
Name:  H5c7o6f.jpg
Views: 159
Size:  602.4 KB
Name:  VsOdg9H.jpg
Views: 159
Size:  625.0 KB
Name:  3HGX4pJ.jpg
Views: 160
Size:  455.9 KB
Name:  1gRCYAB.jpg
Views: 160
Size:  661.5 KB
Name:  c3CE0ha.jpg
Views: 156
Size:  524.4 KB
Name:  khyYNAr.jpg
Views: 158
Size:  561.2 KB
Name:  TwrSkm6.jpg
Views: 158
Size:  600.5 KB
Name:  S9d67OL.jpg
Views: 153
Size:  607.6 KB
Name:  VhRgdwu.jpg
Views: 156
Size:  490.4 KB
Name:  veCIk3E.jpg
Views: 157
Size:  417.2 KB
Name:  EnJ9v7Y.jpg
Views: 157
Size:  629.8 KB
Name:  Kfl6O9t.jpg
Views: 151
Size:  649.4 KB
Name:  nBsndtF.jpg
Views: 155
Size:  658.2 KB
Name:  nXushgP.jpg
Views: 160
Size:  682.6 KB
Name:  JwrErD8.jpg
Views: 152
Size:  601.1 KB
 
  #2  
Old 03-20-2019, 06:34 AM
Tugly's Avatar
Tugly
Tugly is offline
Hotshot
Join Date: Jan 2011
Location: Columbia River
Posts: 18,797
Received 111 Likes on 66 Posts
You came to the right place. Got a gun cleaning kit?

 
  #3  
Old 03-20-2019, 07:17 AM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Looks like a plan!
I just cant imagine rebuilding the injectors to just put them in with the grime in the passage ways.
This gives me a good idea where they are too.

thanks
 
  #4  
Old 03-20-2019, 01:22 PM
FordTruckNoob's Avatar
FordTruckNoob
FordTruckNoob is online now
Identifies as He/Him/Noob
Join Date: Jan 2005
Location: Henderson, NV
Posts: 10,782
Received 2,971 Likes on 1,961 Posts
And then inspect the passages after cleaning them with one of these:
Ultra Slim 0.21 inch Dia. Probe USB Endoscope with Semi Rigid Cable USB Type C Adapter Borescope Waterproof Inspection Camera Snake Camera for PC Notebook and Android Device(5M/16.4ft Cable)
Amazon Amazon
 
  #5  
Old 03-20-2019, 02:56 PM
timmyboy76's Avatar
timmyboy76
timmyboy76 is offline
Lead Driver
Join Date: Sep 2010
Posts: 7,793
Received 48 Likes on 36 Posts
Nice truck...
 
  #6  
Old 03-20-2019, 04:16 PM
'88 E-350's Avatar
'88 E-350
'88 E-350 is offline
Fleet Mechanic
Join Date: Jul 2010
Location: Los Angeles, Ca.
Posts: 1,753
Received 30 Likes on 25 Posts
If you do get in there with a brush or patch make sure you blow them out afterwords.
 
  #7  
Old 03-21-2019, 04:19 PM
Amicus's Avatar
Amicus
Amicus is offline
More Turbo
Join Date: Dec 2003
Location: hondo
Posts: 571
Likes: 0
Received 4 Likes on 2 Posts
Originally Posted by '88 E-350
If you do get in there with a brush or patch make sure you blow them out afterwords.
How would you do that? Remove banjo bolts and use compressed air? Instead of using a brush or gun patch could just fill with something like brake cleaner and then blow out?
 
  #8  
Old 03-21-2019, 11:28 PM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by timmyboy76
Nice truck...
thanks!

Originally Posted by FordTruckNoob
And then inspect the passages after cleaning them with one of these:
Ultra Slim 0.21 inch Dia. Probe USB Endoscope with Semi Rigid Cable USB Type C Adapter Borescope Waterproof Inspection Camera Snake Camera for PC Notebook and Android Device(5M/16.4ft Cable) https://www.amazon.com/dp/B01IGPDMK0..._isOKCbW64HJDQ
I'm really on a budget and I refuse to own a cellphone, never have since 1998
 
  #9  
Old 03-21-2019, 11:48 PM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Tugly
You came to the right place. Got a gun cleaning kit?

https://youtu.be/l5bpNNBbNzs?list=PL141EA1E3D88121E9
Guns and diesels really go go together!
Way cheaper than official o-ring kits.

I think I'll grab these:

Name:  gvqMUjy.jpg
Views: 153
Size:  175.9 KB
Name:  l3pja4v.jpg
Views: 154
Size:  298.2 KB
 
  #10  
Old 03-22-2019, 12:24 AM
Tim Hodgson's Avatar
Tim Hodgson
Tim Hodgson is offline
Fleet Mechanic
Join Date: Mar 2009
Location: Sacramento Delta, CA
Posts: 1,853
Received 46 Likes on 33 Posts
I doubt if you can get to them in the F-Series, but there is one threaded plug on the back of each head for the fuel rails. Since my van's 7.3L fuel system is likely full of paint flakes, I plan to remove them and flush the entire fuel system.

Do you have algae?
 
  #11  
Old 03-22-2019, 01:15 AM
'88 E-350's Avatar
'88 E-350
'88 E-350 is offline
Fleet Mechanic
Join Date: Jul 2010
Location: Los Angeles, Ca.
Posts: 1,753
Received 30 Likes on 25 Posts
Originally Posted by Amicus
How would you do that? Remove banjo bolts and use compressed air? Instead of using a brush or gun patch could just fill with something like brake cleaner and then blow out?
I've never done it so I can't give a good 'how to' on it. Maybe just compressed air would do the trick. If you put anything in there to scrub with it's likely to leave loose particles behind that'll need to be removed. I would just leave them be unless they really needed to be scrubbed out.
 
  #12  
Old 03-22-2019, 06:35 AM
Tugly's Avatar
Tugly
Tugly is offline
Hotshot
Join Date: Jan 2011
Location: Columbia River
Posts: 18,797
Received 111 Likes on 66 Posts
I had to do something after replacing cups, that green stuff gets everywhere. Following the swab with a good blast of air and some flushing augments the cleaning job.
 
  #13  
Old 03-22-2019, 06:52 AM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Originally Posted by Tim Hodgson
I doubt if you can get to them in the F-Series, but there is one threaded plug on the back of each head for the fuel rails. Since my van's 7.3L fuel system is likely full of paint flakes, I plan to remove them and flush the entire fuel system.

Do you have algae?
I dont think there was algae.
The tank had 80 liters of fuel (and oil) in it and thankfully its a plastic or composite type tank.
I already drained it, scrubbed it inside and out with dish soap and water, rinsed and dried it completely.

I then rebuilt the sending unit for the fuel gauge and cleaned the filters in the pick up and flushed all that out.

I gave the fuel away as I have no idea if it was tampered with or had water in it or what.
I just didn't want to risk putting it back in the tank.
You just never know if someone put bleach in the tank or what, too risky.
First thing I did was buy a locking cap.


I tried to replace the slip tank filter but it ended up breaking it right off the mount.
The devil salt brine has killed it.





 
  #14  
Old 03-22-2019, 07:10 AM
HD Rider's Avatar
HD Rider
HD Rider is offline
Cargo Master
Join Date: Aug 2009
Location: Glendive, MT
Posts: 2,137
Likes: 0
Received 7 Likes on 6 Posts
Really nice truck!
 
  #15  
Old 03-22-2019, 09:13 AM
Cartel's Avatar
Cartel
Cartel is offline
Mountain Pass
Thread Starter
Join Date: Mar 2019
Posts: 154
Likes: 0
Received 0 Likes on 0 Posts
Lots of videos I see dont stress the tip importance.
This one shows what is gonna be critical.
that spray needs to be clear.

 


Quick Reply: Clean out fuel rails before intalling new injectors | Injector inspection and rebuild



All times are GMT -5. The time now is 08:31 PM.