Installing Injector Sleeves For 911 '75

DMX · 04-12-2003, 06:12 PM

Ok.... Anyone do this before...? I am replacing the injector o'rings and the injector sleeves.... I am picking them up on Monday and I don't know how to install the sleeves.... I think they just unscrew.... is that right? If not how would I take them out....? I am sure it is not that hard but I would like to know the best way to replace them so they are nice and tight....

Thanks..

makaio · 04-13-2003, 08:01 AM

There is a tool available for removing both the sleeve and the injector. Pelican should sell them, if not try www.toolsource.com, or a vw site. Although I removed my injectors with vice grips attatched to the ends. I found when I replaced my injector o-rings, that most of the sleeves pulled out with the injectors. Use a silicone type grease for install of the new parts, it's available at any auto parts store, under names like sil-glide etc. Good luck, and shoot me a pm or e-mail if you have any questions.

Doug Zielke · 09:40 AM

Before you tackle this job do a search here.
This job can be a PITA with the motor in the car.
The inserts may be very brittle. They may crumble when you try to pull them out. The factory stakes them in with 3 punch marks around the opening. Even though the insert material is a phenolic-type plastic, you should be careful to keep broken bits from getting into the motor.
There is a thin o-ring that seals the insert; don't forget to install it.
Use Dow-Corning silicone paste (*not* sealant) to install the inserts as well as the new injector o-rings.

DMX · 04-13-2003, 09:45 AM

Is there any special way to remove these without little pieces falling

apart.... Mine are very brittle.........

Doug Zielke · 04-13-2003, 10:18 AM

Quote:

Originally posted by DMX
Is there any special way to remove these without little pieces falling

apart.... Mine are very brittle.........

Someone may have a method, but I would re & re them on the work bench, removed from the engine.

DMX · 04-13-2003, 07:12 PM

Does anyone know if a '75 2.7 has the screw in sleeves or the

ones that just snap in. . .. .. .

makaio · 04-14-2003, 08:50 AM

should be the snap in style.

DMX · 04-21-2003, 10:24 AM

Anyone know which tool I need to remove the injector sleeves...

Can't find it...

sammyg2 · 04-21-2003, 10:55 AM

There's a tool for removing the injectors, I've never seen a tool for removing the sleeves. The injector tool screw onto the threads of the injectors and has a tee handle that allows you to pull on them.

When I replaced my injectors I used a very small pry bar under the lip of the hex nut on the injector, they were stubborn but pulled out. Some of the sleeves pulled with them. The ones that came out were cracked, I would recommend changing all that come out.
I don't know a good way to get the old brittle ones out of the intake runners without pulling the runners off the car (major pain).
You could try to pick at them with needle nose pliers after removing the stakes but bits and pieces will probably fall into the runners. Probably too small to hurt anything but I for one would not take that chance.
I say if they are not loose and don't come out and are not obviously bad leave em and just change the injector o-rings unless you're willing to remove the runners which probably requires a partial engine drop. I've never tried that so maybe someone who has can add more details.

Oh, I also use dow-corning 111 silcone grease, very good stuff.