CFI removal, any easy way to do it?

Topic: CFI removal, any easy way to do it? (Read 1899 times) previous topic - next topic

CFI removal, any easy way to do it?

May 22, 2005, 02:31:35 PM

I just found out my car is running like because of a bad o-ring on the top of the injector. Just wondering if there is any easy way to get it out without yanking the whole cfi unit.

Re: CFI removal, any easy way to do it?

Reply #1 – May 22, 2005, 05:53:35 PM

jccasity will chime in here, I think. But, pulling the whole CFI unit isn't that bad. I had it off, apart, back together, and in within an hour.

Re: CFI removal, any easy way to do it?

Reply #2 – May 23, 2005, 12:22:53 AM

I know,, you dont wanna disturb the new gaskets, right?

the large cfi to egr plate gasket is more forgiving than the egr to intake so yank it.

its a pretty hosed up deal to split the CFI in half.
remove the top bolt that holds your air cleaner on
flip it over
remove the three phillups screws on the bottom.
(let us know if only one screw gives you trouble, it did for me and Ifixyawata from what i remember)
You might end up having to make a gasket where it splits , that should be no problem for you.

now the fun one,,, remove the lower injector retainer (one standoff screw)
careful or the head will break off., then you be drilling it out. I didnt, i dont have that on anymore.
the rest is easy from here, yank the screens in the injectors while you at it .

if you want to toss the screens but keep the filtering concept,, i have an idea.
There are round fuel screens out there intended for carb's. they are about 1/4'' wide and about 3/4'' long. I found one in my carb on my tractor when i removed the fuel feed line to the carb.
Napa sold me a new one for a few cents. I have one now, and checked this idea out a long ago, it will slide right up into the cfi feed fitting to which then you just bolt your line back on.

Re: CFI removal, any easy way to do it?

Reply #3 – May 23, 2005, 06:39:53 AM

I figured I'd have to take the whole thing off again... I was hoping it could be done without the hassel. Do you know if I can buy just the o-rings? I'm sure I could find something to fit, but would rather not experiment. Maybe I'll just buy new injectors...

Re: CFI removal, any easy way to do it?

Reply #4 – May 23, 2005, 07:44:24 AM

yeah,, napa sells them im for sure. they are pretty tiny. Id get the orange colored injectors. Orange (color code) means something about quality and the material. I remember in the navy, we used only orange o-rings for some reason.

if you want,, just use silicone on the old oring and slip it back in. Dont use clear,, ive noticed gas eats through it pretty easy.

Re: CFI removal, any easy way to do it?

Reply #5 – June 09, 2005, 08:32:03 PM

Well, I tore the CFI down today and rebuilt it with new gaskets (again). I pulled the little screens out of the injectors this time around as well.

Getting gaskets was a real PITA. I went to all the parts stores in town and all I got was "We can get it by next week." The first place I went to had no idea what CFI was and tried to sell me a lower intake gasket set. Then he brought out an EGR gasket, still the wrong one. Eventually he got to the one I needed and said they were out of stock. So I just got the o-rings there and left. I ended up getting the gaskets at another ford dealer 15 miles away. Not that I'm complaing too much, my motorcycle was begging to be ridden anyway

.

I got the TB all cleaned up and went to put the new rings on and they were way too thick. I took them back promptly and asked for an exchange for the correct ones, the guy is puzzled. "But that's what the computer told me to give you!" Tired of his stupidity, I returned them and bought new ones, and the correct ones, elsewhere.

How can places hire people who don't know the difference between a throttle body and an intake manifold? I explained what I needed very clearly and even sketched a picture! People :rolleyes:

Re: CFI removal, any easy way to do it?

Reply #6 – June 11, 2005, 07:45:54 AM

whats this plural stuff? (gaskets?)
theres only one where it splits in half unless your counting the base and egr set also.

without the screens , you'll never have hesitation again.
did you have trouble with one screw not wanting to come out? (where it splits in half)

Re: CFI removal, any easy way to do it?

Reply #7 – June 12, 2005, 03:02:27 AM

Quote from: jcassity

whats this plural stuff? (gaskets?)

The one I had trouble finding was the one where it splits in half. The other one I'm talking about is the spacer that goes between the TB and the EGR plate. It's plastic, or something similar. I developed a tiny air leak on the bottom of the TB, so I just replaced that one while I had everything apart.

When I first swapped it out, I had a little trouble with one of the screws, but nothing terrible. A couple were rusted pretty bad, so I replaced them last time as well. Did I mention that I just swapped the bottom half from the v8 bird? The tops were identical and I didn't feel like messing around with a new regulator, so I just used the old upper.

It runs better now than it ever has. It's amazing how well it runs after fixing a vacuum leak and getting rid of those screens. Did you (jcassity) have a part number for that filter that bolts right up to the fuel line? I'd like another filter in line just in case something sneaks by after the primary and clogs my injectors.

Re: CFI removal, any easy way to do it?

Reply #8 – June 12, 2005, 09:18:38 AM

i can get you one if you want but this is the screen i ended up using. it goes in a tractor carb. it just slides right up inside the feed line fitting. on your cfi, undo the fuel line feed on the pass side and slide this up in the hole.
Napa is where i got mine but this one down here carries odd ball parts for farming and logging so im not sure about your resources. id just not run one at all. i tossed mine a few months ago with no issues.

Re: CFI removal, any easy way to do it?

Reply #9 – June 13, 2005, 07:03:20 AM

Quote

this is the screen i ended up using.

The long grey blurry blob that looks like a used condom, or the round blurry blob that looks like a rusty dime?

Re: CFI removal, any easy way to do it?

Reply #10 – June 13, 2005, 08:00:42 AM

Quote from: MasterBlaster

The long grey blurry blob

yep
the pic needs cleanded up a little bit so jump right on that :flip:

Re: CFI removal, any easy way to do it?

Reply #11 – June 13, 2005, 05:57:05 PM

How did you extract the screens from the injectors? I've been looking over these other injectors I've been cleaning up lately, and the screens look pretty well stuck in there. I wouldn't mind removing the screens on my CFI injectors and soaking them overnight like I've done to these other injectors, but I don't wanna take it all apart and mess with it unless I'm 100% sure of everything I'm doing.. since this is my only transport during the day when everyone else is out. Ideally I'd like to pick up a 5.0 CFI and stick these injectors in it, but I can't afford to pick one up right now. Also need to track down another gasket, and weren't you the one who said something about buying them in lots of 5 or whatever, a long time ago?

Re: CFI removal, any easy way to do it?

Reply #12 – June 13, 2005, 06:25:07 PM

To extract the screens, you need a fairly large screw that will screw in tightly to end of the injector. You know, that part that has three little plastic things sticking out? Get a screw a little bigger than that, big enough that it doesn't fit down inside the injector, but small enough that you can screw it in. See the picture below, sorry for the poor artwork. You have to pull kind of hard to get it out, but should pop right out.

Re: CFI removal, any easy way to do it?

Reply #13 – June 13, 2005, 06:28:29 PM

Quote from: Bird351

Also need to track down another gasket, and weren't you the one who said something about buying them in lots of 5 or whatever, a long time ago?

The dealership I got mine from said they came in a 5 pack, but they could sell me just one since they were in stock. If they had to order it, I would have had to buy all 5. The package I got mine in said quantity of 5, must have been the last one