E85 Injector Issues... Anyone?

[Halon]

I've been following this on the Link board, and thought I'd see if anyone local has experienced this.

A few people have noticed some black oily/tar build up on the tips of their injectors after running E85. They said when they burn that black gunk, it smells like burning oil. So far no one seems to know what it is, or why it's there, including the people at FIC and RC.

It seems like the people having these issues are all running FIC injectors (not the new Bluemax ones). FIC is claiming that their Bluemax ones are E85 safe. But it's their older ones (1150's, white top 1600's) that people are getting this black oily/tar build up at the tips. I run the Blue Top ones from PTE, and mine are perfectly fine. I've put on quite a bit more miles then some of these others with the build up also. I personally have had no noticeable adverse affects from running E85 as of yet. It also sounds like people with both stock hard lines, and aftermarket fuel lines, are both having this issue.

Anyhow, I just find it interesting, and wondering if there's anyone here that's noticed this? If you have, please say what injectors, fuel lines, etc... you are running.


Here is one pic that kinda shows the gunk
http://dsmlink.com/forums/attachment.php?attachmentid=22899&stc=1&d=1235468310

And Here is the WORST case I've seen yet
http://i98.photobucket.com/albums/l251/GVR4_1670/DSC02929.jpg

[Kracka]

Taken from EvoM:

"Precision Injector Users Using E85 Beware
Just got some good intell from AMS as my car is up there getting worked on for "09", they where checking everything thing over as a good shop would do and ran into a little issue. It seems that the E85 has eaten up the hoods on the Injectors and disrupting the flow pattern. But hears the catch they have only been on the car for about 3K miles using E85. Now precision is going to warrenty these but will more then likely not any more. So if you have or are running E85 and using Precision Injectors I would recomend checking them out just to be safe. Oh and BTW AMS is offering new Injectors from Deatschwerks that are supposed to able to run methanol and E85 safely and also come with a 1 year warrenty, which I am switching to. Thanks for reading"

http://forums.evolutionm.net/evo-engine-turbo-drivetrain/402999-precision-injector-users-using-e85-beware.html

[Kracka]

I have heard ethanol has the ability to eat rubber so maybe that gunk is "melted" seals?

[twack]

Shit ill check mine in the morning. Is this an injector issue or an e85 issue

[turbotalon1g]

Bman what injectors do you have?

I will take a look at my FIC 950s when its time to or close to starting her up.

[Halon]

I have the Blue Top 1600's. I bought them from LSE, which I believe got them from PTE.

Thanks for the link Hughes. That's the first I've heard of someone having an issue using PTE injectors. Everything I've read have been on FIC injectors.

I did just check mine out yesterday, and mine look good as new. Plus I've had them in and out occasionally just from working on things, and I've never noticed this on mine. But I am contemplating sending them in to get professionally checked out.

TWACK - It is an issue a few have reported when running E85. Nobody seems to know yet what the goo is. It appears to be accumulating at the tip of the injector, but that doesn't mean the injector is the root cause. The root cause is what I'm interested in finding out.

[FattyBoomBatty]

Anyone who finds this on their injector should look at the back of the valves and in the ports.

Or quit putting black RTV on their injectors.

[turbotalon1g]

why would anyone put any RTV on injectors?
Actually my old FIC 1600s looked messed up like the others do.

[TkrPerformance]

craig gave me his pte 1600 when we parted out his talon and they look just like new and they were in the car for over a year on e-85. It was his DD

[95talonracer]

I noticed this crap on my FIC 1600's when I just put them back in my motor. I thought it was just build up but now that it is mentioned, it does seem like melting end caps. So will FIC send you new ones or replace them so this doesnt happen? I can see if they stated that they wont wirk with E-85 but as far as I know nothing was mentioned when I bought mine so they should fix this issue for people running E-85.