injectors & head studs
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Cross-Country
Joined: Feb 2007
Posts: 80
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From: Everett, WA
injectors & head studs
I recently had the parts guy at a dealer tell me the OEM injectors are "real junk". Does anyone make a better injector for the 6 liter?
I have been thinking about doing head studs on my bone stock 2003 6.0. I have not had difficulty with the head gaskets(knock on wood), but would consider putting in new studs if I coudl do it without taking the heads off. is that even possible(recommended). From the manual, it looks like the stock way of attaching teh heads is with bolts. Is this true, or are there studs in there already?
Thanks in advance.
I have been thinking about doing head studs on my bone stock 2003 6.0. I have not had difficulty with the head gaskets(knock on wood), but would consider putting in new studs if I coudl do it without taking the heads off. is that even possible(recommended). From the manual, it looks like the stock way of attaching teh heads is with bolts. Is this true, or are there studs in there already?
Thanks in advance.
Fleet Owner
Joined: Nov 2003
Posts: 27,893
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Great performance from the sticks ljutic ss! Actually, quite a few folks w/ high miles on the original injectors - but also quite a few that had problems. What are your thoughts on the reasons for your success? Beachbumcooks also comes to mind when thinking of good reliability of the fuel system.
Posting Guru
Joined: May 2003
Posts: 1,990
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From: Middleburg, FL
I think the critical part of keeping the injectors healthy is maintaining good fuel pressure. A big part of this is changing your fuel filters, using only the Racor/OEM filters, at the recommended interval and sooner if you expect you've gotten a bad load of fuel as well as draining your water separator on a regular basis. I'm of the firm opinion that a lot of problems with the 6.0 are caused by poor maintenance and/or improper maintenance. That's not to say that some injector failures haven't failed due to issues with the injectors themselves, but I think the majority are fuel pressure related.
Posting Guru
Joined: Apr 2008
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From: Green Lane, Pa.
Mark, I would like to believe that never going over 15,000 miles between fuel filter changes might contribute to that. My truck is a Dec. 02 build so it's an early 6.0 and I have seen on this forum where a 6.0 tech claims early builds were less problematic then other builds. I have always kept up with oil changes at 4,5-5,000 intervals using Rotella, and Motorcraft oils. I must say though my use of 2 stroke oil with the fuel might add something to the lack of problems. The last 3 fill ups I have gotten 19.4, 20.1 and this week 18.9 thats 60% country and 40% highway driving, no hotrodding 67 max. This Sept will be 2 years I have been using 2 stroke.
Fleet Owner
Joined: Nov 2003
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Thanks for your thoughts! It is very helpful when we reflect on the successes!!
Personally, it is killing me to run my truck without gauges. I hope to have them by year end though! I think that we should all be watching fuel pressure, EGT's, and the difference between coolant and oil temps!!!
Personally, it is killing me to run my truck without gauges. I hope to have them by year end though! I think that we should all be watching fuel pressure, EGT's, and the difference between coolant and oil temps!!!
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Cross-Country
Joined: Feb 2007
Posts: 80
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From: Everett, WA
Clarification
Regarding the injector comment, made by a Ford parts guy, I believe he was saying this because they keep a full set in stock and turn that stock very regularly, meaning they are replacing a lot of injectors. I personally haven't replaced but two, in the 152K miles I've put on my truck. The dealer recently told me I had two more that were low on the contribution test. Have just been looking around, and wanted to get the opinion of the FTE brain trust. I guess what I am hearing is there is nothing better, and keep 'em clean and supplied with enough pressure and that is as good as it gets.
Any body have any input on the ARP stud installation question. Can you replace the bolts with studs without taking the head off. I've got no leaks so far, but thought it might be a good idea to get in there now and replace 'em before I blow a head gasket. What do you think?
Thanks in advance?
Any body have any input on the ARP stud installation question. Can you replace the bolts with studs without taking the head off. I've got no leaks so far, but thought it might be a good idea to get in there now and replace 'em before I blow a head gasket. What do you think?
Thanks in advance?
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Laughing Gas
Joined: May 2006
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From: Oakville, Ontario
I am interested in some thoughts on the same issue. So I will be waiting to see if anyone can add to this thread regaurding the head studs.
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Post Fiend
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From: Plano TX and Brentwood TN
Any body have any input on the ARP stud installation question. Can you replace the bolts with studs without taking the head off. I've got no leaks so far, but thought it might be a good idea to get in there now and replace 'em before I blow a head gasket. What do you think?
Thanks in advance?
Thanks in advance?
I would take your time doing it or save up the scratch to have someone do it. Sometimes trying to do things quicker and/or cheaper end up costing you more in the long run. Not to say you couldn't have success with it, chances of something going wrong during installation are that much more compared to taking the engine out or lifting the cab.
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Regarding the injector comment, made by a Ford parts guy, I believe he was saying this because they keep a full set in stock and turn that stock very regularly, meaning they are replacing a lot of injectors. I personally haven't replaced but two, in the 152K miles I've put on my truck. The dealer recently told me I had two more that were low on the contribution test. Have just been looking around, and wanted to get the opinion of the FTE brain trust. I guess what I am hearing is there is nothing better, and keep 'em clean and supplied with enough pressure and that is as good as it gets.
Any body have any input on the ARP stud installation question. Can you replace the bolts with studs without taking the head off. I've got no leaks so far, but thought it might be a good idea to get in there now and replace 'em before I blow a head gasket. What do you think?
Thanks in advance?
Any body have any input on the ARP stud installation question. Can you replace the bolts with studs without taking the head off. I've got no leaks so far, but thought it might be a good idea to get in there now and replace 'em before I blow a head gasket. What do you think?
Thanks in advance?
If you take the studs out you have to replace the gasket and inspect the head for chipping before you put it back on. So no you can’t leave heads on while replacing head studs or you’re risking blowing the old head gasket.
don’t cut that corner and have to replace the engine or have to take it back apart again.
