Injector removal problem
Thread Starter
|
Mountain Pass
Joined: Feb 2012
Posts: 244
Likes: 0
Good news, 1 injector sleeve came out! I sprayed the carb cleaner down around the sleeve, and it came out in 10 minutes. But the other sleeve is still stuck in! The threads are stripped on the injector that is welded to the slide hammer, they are stripped on the injector sleeve. So I'm going to try a new approach:
Yesterday I bought a pistol grip air gun(http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_pistol-grip-blowgun-autocraft_9016805-p?navigationPath=L1*14924%7CL2*15044%7CL3*16229), and I sprayed carb cleaner down around the sleeve and I tried to blow out some of the carbon holding the sleeve in. I ground down a dime to cap off the bottom of the injector sleeve, and then bought some QuikSteel QuikSteel™ Epoxy Putty and I layed some inside of the injector sleeve and around the bottom of the injector, where it should thread into the sleeve and I left it to sit overnight. Right now I'm at school so I'm going to see how it worked after I get home.
The logic here was due to the threads being stripped I figured I could have a bond to make the units one piece.
Yesterday I bought a pistol grip air gun(http://shop.advanceautoparts.com/webapp/wcs/stores/servlet/product_pistol-grip-blowgun-autocraft_9016805-p?navigationPath=L1*14924%7CL2*15044%7CL3*16229), and I sprayed carb cleaner down around the sleeve and I tried to blow out some of the carbon holding the sleeve in. I ground down a dime to cap off the bottom of the injector sleeve, and then bought some QuikSteel QuikSteel™ Epoxy Putty and I layed some inside of the injector sleeve and around the bottom of the injector, where it should thread into the sleeve and I left it to sit overnight. Right now I'm at school so I'm going to see how it worked after I get home.
The logic here was due to the threads being stripped I figured I could have a bond to make the units one piece.
Thread Starter
|
Mountain Pass
Joined: Feb 2012
Posts: 244
Likes: 0
I forgot to add that in the injector bore that the one sleeve did come out of I used an easy-out early in the game, but it broke and my easy out is still stuck in the head/injector bore. I can see that the easy out has carved a square around where the injector nozzle should be.
In other words where there should be a circle, is a partially bigger square. The nozzle should still fit, but... will I need to get a new head for my 7.3 IDI?
I hope that I can pop the easy-out when I crank the engine over.
In other words where there should be a circle, is a partially bigger square. The nozzle should still fit, but... will I need to get a new head for my 7.3 IDI?
I hope that I can pop the easy-out when I crank the engine over.
Thread Starter
|
Mountain Pass
Joined: Feb 2012
Posts: 244
Likes: 0
Well it didn't work. The parts did not bond like I had anticipated, and when I went to drive the hammer up, the welded injector popped up. Crap.
I noticed that there is about a 2mm spacing between the injector port and around the injector sleeve, so hopefully I can spray Carb cleaner around the sleeve, grind down a pick to fit inbetween the sleeve and port, and scrap/blow the carbon out gradually.
I noticed that there is about a 2mm spacing between the injector port and around the injector sleeve, so hopefully I can spray Carb cleaner around the sleeve, grind down a pick to fit inbetween the sleeve and port, and scrap/blow the carbon out gradually.
Thread Starter
|
Mountain Pass
Joined: Feb 2012
Posts: 244
Likes: 0
My persistence paid off! I finally got the sleeve out yesterday. I started hammering a flat-head in between the sleeve and the wall to break the carbon up, and simultaneously spraying carb cleaner. After it soaked, I used needle nose pliers to pull it up and out, little to no effort required.
I've realized that carbon build up is a huge problem for these injectors, especially since it took me 3 weeks of working on it (between work and school). How can I avoid this for next time? I saw that the copper washer was in place where it should be on all the injectors on the passenger side, but there was still an awful amount of carbon coating every inch of the injector port.
Whats more puzzling, and this is just an observation, is that the carbon build up is only on the passenger side of the motor, and the injection ports on the drivers side are pretty clean.
After I got the sleeve out, I decided to pull all of the injectors back out to examine the ports and blow out the carbon build up, and this is when I noticed my aforementioned statement.
I've realized that carbon build up is a huge problem for these injectors, especially since it took me 3 weeks of working on it (between work and school). How can I avoid this for next time? I saw that the copper washer was in place where it should be on all the injectors on the passenger side, but there was still an awful amount of carbon coating every inch of the injector port.
Whats more puzzling, and this is just an observation, is that the carbon build up is only on the passenger side of the motor, and the injection ports on the drivers side are pretty clean.
After I got the sleeve out, I decided to pull all of the injectors back out to examine the ports and blow out the carbon build up, and this is when I noticed my aforementioned statement.
Posting Guru
Joined: Feb 2013
Posts: 1,203
Likes: 0
the copper washer wasn't sealing right, put in new washers and i over troque my injectors, somebody else might have a better idea. if you get the injectors too tight you can crack the head on the thin side of the threads
Junior User
Joined: Jun 2010
Posts: 96
Likes: 0
From: Central British Columbia
could be worth checking out your exhaust carefully on both sides.
Thread
Thread Starter
Forum
Replies
Last Post
MotherTruckinMarine
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
6
Mar 17, 2014 08:03 PM
kladd
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
8
Jan 11, 2011 09:04 PM
rickscott2
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
9
Dec 10, 2009 06:44 PM
