Keith Browning Posted January 11, 2019 Share Posted January 11, 2019 I am thinking BS on this... somehow this injector cup was supposedly pulled from the head like this. Quote Link to comment Share on other sites More sharing options...
cbriggs Posted January 15, 2019 Share Posted January 15, 2019 Maybe if it was at some point installed using something other than the correct tool ,and cracked at that point. Or Possibly not pushed in all the way, and the injector was torqued down after the loctitie had set. Quote Link to comment Share on other sites More sharing options...
Bruce Amacker Posted January 15, 2019 Share Posted January 15, 2019 I've seen more than a few cups cracked from overheating in both 7.3s and DT engines. Check the cooling system for all of the normal faults, a bad fan clutch is a common cause in my experience. If it still has brass cups it's probably an old engine? Most of the MY2000+ got SS sleeves which didn't crack. Supposedly the brass and later coolants didn't play well together so they got SS, but I saw a few OEM brass installs in later trucks, like they used old stock or something. Tell the guy to put SS in it, if he can borrow the "roller" install tool, that's even better. Quote Link to comment Share on other sites More sharing options...
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