if i install new injector seals do i automatically need to do the cups too? the price for a seal kit is about $60 the price for seals, cups, tools, and Loctite is about $350. if new cups are necessary or it is a recommended practice to replace the cups when you do the seals then fine, it is what it is. I have no coolant, oil, or fuel anywhere it shouldn't be so i highly doubt any are cracked and if i can save a few bucks and some time then that would be great.
johneisenman
No you don't have to do the cups. You dont need to worry about them unless you see something obvious when you pull the injectors.
wondering this also bout to pull the trigger on the puller installer for a job. 225K never had injectors out. i have a set of cups but thinking i should just do them because we are going to be right there.
Me too Bighorn Im at 190,000 miles and going to do the o-rings and not sure weither to do the cups while in there or just leave them be as I never get any change in coolant height or smell of diesel in my coolant but im still wondering. Not sure here what the life span of these cups are and want to make sure the new o-rings will seal right.
Nice pic Bruce Ill check them all out before putting each injector back in. How long does it take for the coolant to get in the cup like that after you remove the injector? Ill make sure I give it enough time to be sure there all good. I hear ya there Hydro man Im not feeling up to messing with them if I dont have to.
well I have decided to do the cups for this job eitherway. ordered the tool from rosewood today. we don't have time to screw around if I get in there and the cups don't look good so they are getting done. but that picture there is leaking bad enough to fill the cylinder while the injector is out.
hmmmm, maybe its just a good idea to do them while its apart then. Id hate to have one seeping then down the road another 10,000 miles or so have to pull it all apart again to do them. im like you Bighorn I dont have the time to tear into it again or have the truck down for days waiting on the tools and cups to do them as its my daily driver.
They're easy to change when you have the tool. Use the loctite and you wont have any problems. Just time consuming when you do a whole set. And they do crack over time from fatigue.
I'm a little against the grain as far as popular opinion, but I change em if I do injectors. My IH mechanic buddy recommends them to his customers when he does injectors. I didn't heed his advice and got burnt on two different trucks. It really sucks pulling injectors twice on the same vehicle.
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