Cetane Posted October 6, 2005 Share Posted October 6, 2005 I have an engine that needed an injector replacement due to fuel issues. I replaced injectors 2,4,6,8 but I had to reuse the old copper washers that seal the injector to the combustion chamber because there were no replacements available. Anyway the "owner" ran the engine for a little while and it exhibited signs of leakage past the copper washers. I pulled out cylinder #8 and of course it had been leaking. What do you guys use to clean the sealing surface? It has a coating of carbon/soot marking the area the washer was leaking that I cant seem to get off and I dont want/can't to pull the head. Any suggestions? Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted October 6, 2005 Share Posted October 6, 2005 Technically, we are not supposed to service the injector sleeves after a copper seal failure. They are to be replaced. I think it's a judgment call but any major pitting or burning is not cleanable. I do have something you could try... I used one of the wire brushes in the 7.3L kit, not the "twirly" looking one but the one that is straight like a little round broom. Since we have two in our shop, I removed the plastic handle and put it in a right angled drill. For all intents and purposes, I reconditioned the injector sleeve. I only needed to remove a little carbon so it went quickly and I doubt the sleeve was damaged at all to begin with. It's worth a try. /forums/images/%%GRAEMLIN_URL%%/shrug.gif Quote Link to comment Share on other sites More sharing options...
Cetane Posted October 6, 2005 Author Share Posted October 6, 2005 Thanks for the suggestion. I will have to give that a try. I tried spinning a stiff rifle brush that was the diameter of the bore by hand and it didnt seem to do anything. I dont want to score the sleeve then I am really out of luck. Hopefully it works, I am out of options if it doesn't. Quote Link to comment Share on other sites More sharing options...
HeuiTim Posted October 7, 2005 Share Posted October 7, 2005 Take a small diameter wire brush on the end of an air drill. Wrap the wire with a piece of red scotch brite. It will clean the sleeve and seat without damage. Quote Link to comment Share on other sites More sharing options...
HGM Posted October 7, 2005 Share Posted October 7, 2005 I like the scotch brite idea better. You might loose a couple of wire bristles in the combustion chamber. Hope it works out, the sleeve wouldnt be a fun job. Quote Link to comment Share on other sites More sharing options...
Cetane Posted October 7, 2005 Author Share Posted October 7, 2005 This engine is going to be down for the forseeable future while we try and locate some replacement o-rings and copper washers. I will try the scotch brite suggestion and let everyone know how it works. The injector sleeve is out of the question for now. It turns out there is more problems than just the combustion seal so I really have my hands full. Quote Link to comment Share on other sites More sharing options...
Cetane Posted October 8, 2005 Author Share Posted October 8, 2005 When I got to work today my counterpart had cleaned up the sleeves using the red scotchbrite. Thanks for the tip. Amazingly enough new parts arrived so the o-ring got replaced, the engine reassembled. I put some time on the engine and everything works great. Thanks for all the help!! Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted October 8, 2005 Share Posted October 8, 2005 I might be missing something but all our new 6.0 injectors come with the copper washer installed... Quote Link to comment Share on other sites More sharing options...
Cetane Posted October 8, 2005 Author Share Posted October 8, 2005 That is probably true but I dont work for a ford dealership and this isnt your run of the mill injector replacement. I was purposely a little vague on the description out of necessity. See some of my other posts for a possible explanation.... Quote Link to comment Share on other sites More sharing options...
cochran Posted February 12, 2006 Share Posted February 12, 2006 Everyone, I know this is an older thread, but I just stumbled across it. On the 6.0L injectors, do not EVER reuse the copper gasket, under ANY circumstances!! During injector installation, this gasket deforms (by design) to seal the injector against combustion leaks. All new injectors and service injectors are sent out with orings and copper gaskets. This is important. Quote Link to comment Share on other sites More sharing options...
Cetane Posted February 13, 2006 Author Share Posted February 13, 2006 I forgot all about this thread, I should have updated it quite awhile ago. After putting a few miles on the engine it did start acting up on the cylinder that got the new parts. It was replaced with a new unit and everything is fine now. Good advice about the copper washers, if they are available.... Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted February 13, 2006 Share Posted February 13, 2006 You "Mad Scientists" need to get out of the laboratory more often! /forums/images/%%GRAEMLIN_URL%%/wink.gif I am assuming you installed a new injector? Once combustion starts blowing past that seal the injector gets trashed. You should have gotten all new seals already installed on the injectors. Aside from that, there are o-ring service kits that include all of the o-rings and the copper gasket to service one injector. Quote Link to comment Share on other sites More sharing options...
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