Anyone on here ever seen 6.0 injector cups crack?

ghohouston · Mar 14, 2014

I've got a truck sitting at a coworkers house pushing fuel into the coolant. Last weekend I pulled the injectors and pressured the coolant system up, looked like one cup slightly bubbled coolant out. I personally have only replaced one 6.0 cup, but have done my share of 7.3 cups. My online research tells me it usually ends up being a cracked head? I told this guy like 6 months ago it could be cups or cracked head (s) with 6 0's being so notorious for head cracks. What do yall think the odds are its actually just cups and not cracked hesd (s)? He wants me to replace all 8 cups tomorrow, already has cups and new injector o rings.

Gary · Mar 14, 2014

Well if you have everything just replace the one you see leaking and retest it, then you don't have much to loose. I don't think I wouldn't replace all of them. The 6.0's have steel cups, not like the brass 7.3's. I had one 6.0 last year pushing fuel into the cooling system and after talking to a couple of other guys I decided to replace the engine, (the engine had over 10,000 hours on it). I had already bought the cups and tools then figured it's not worth the trouble if the head are busted 99% of the time.
I'd tell the guy his prognosis is not good for just having a bad cup. So if your getting paid for that job I wouldn't guarantee it.

ghohouston · Mar 14, 2014

Well, like I said, I told him a while back the heads could be cracked, or it could be cups. He is a cheap s.o.b. and wants to try the cheapest possible route first. I know that's not the proper way to go about these issues, but its his truck and his money.

powerlifter405 · Mar 14, 2014

if it fails, will it ruin the work relationship? The statistical odds are bad heads but I understand what you're saying. I know people like that, then the get even more made when the cheapy fix fails.

Good luck man.