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Long Time Porsche Owner
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Can't Remove Fuel Rail / Injectors
Hi to all.
My first post here.... Trying to remove the fuel rail and injectors with no luck... (This is a 1986 944 N/A) I have removed all of the fuel hoses, fuel rail cover, injector connectors, the rail bolts. Now the fuel rail and injectors should just 'pull straight up and out' right? Wrong! The injectors are stuck tight in the manifold and I have tried for over an hour to convince them to come out! But they're not listening to me! Seriously, I have pulled and pulled upwards on the rail to no avail ! This IS supposed to be easy, right? Any ideas or suggestions are greatly appreciated! Thanks. jollyted Last edited by jollyted; 10-14-2007 at 07:55 PM.. |
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10-14-2007, 07:46 PM
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Registered
Join Date: Jul 2001
Location: Edmonton, Alberta, Canada
Posts: 4,530
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Take the clips holding the injectors to the rail.... pull the rail off...
It will give you a better look at the injectors themselves. You took out the 4 bolts holding the rail. 
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Alex - PCA Polar Region - Boxster Muncher 86' 944 Turbo - Megasquirt - 326 rwhp/340lbft @ 18 psi SOLD www.edmontonhomelife.com www.edmontonrealestate.ws |
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10-14-2007, 08:02 PM
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Registered
Join Date: Jun 2003
Location: Fresno, CA
Posts: 7,787
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I used the wooden end of a hammer (as a leverage bar) to get one end of the rail to start coming out. It's hard to pull all for injectors out at the same time but if you start on one end the others will start coming out.
As stated above, you can also remove the clips from the rail and pull off the rail - leaving the injectors still in the manifold. Then pull on each injector seperately. |
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10-15-2007, 08:52 AM
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Long Time Porsche Owner
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Thanks guys.
I will try your suggestions and see what happens. Is there a specific injector removal tool available? Thanks again for your suggestions!
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Cheers! Ted '86 Silver 944 N/A - Forever in restoration! |
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10-15-2007, 11:41 AM
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Registered
Join Date: Apr 2006
Location: GR, West Michigan
Posts: 266
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I tok all mine out and they were stuck so bad that one of them pulled loose of its clip and stayed with the engine when the other three pulled out. I don't know if it's related but when I put it all back together one injector leaked at the seam. Admittedly I was unable to budge them until I started using a prybar! Good luck!
And you'll have to use some vaseline or I heard recomended ATF on them when you are pushing them back into place. (with new seals of course)
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Andy D. Currently driving 2005 Audi A4 Currently driving 2006 Ram 1500 sometimes |
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10-15-2007, 04:04 PM
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winter-hater club member
Join Date: Oct 2003
Location: salt lake city, utah
Posts: 24,705
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had this problem on my friend's car. some idiot had used 928 injector O-rings (or some others that were ridiculously large) and the injectors were stuck in there TIGHT. getting the thing off ruined two of the injectors.
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2000 Corvette - ????, 2007 Buell XB9R - Astrid, 1996 Discovery - Piglet, 2000 Forester "COOL PRIUS!" - Nobody Ever |
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10-15-2007, 06:40 PM
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Registered
Join Date: Jun 2006
Location: Ballston Spa, NY
Posts: 528
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The injectors then to glue themselves to the manifold, mostly from oxidation on the manifold due to age.
If you spray and soak the injectors with a penetrating spray, like PB or Freeall, they usually slide right out after 10 minutes or so. Not going to hurt at all, and if anything prevent damage to components from puling too hard. Soak and wipe the sealing bores for the injectors in the manifold prior to reinstalling them to avoid a leak. Little bit of grease on the injector seal goes a long way in getting them back in.
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Adam Hennessy |
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10-15-2007, 06:48 PM
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Super Moderator
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it's easy to damage the fuel rail while doing this, so be careful.
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-15-2007, 07:48 PM
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Long Time Porsche Owner
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Thanks guys.
These are great suggestions. The injectors are still stuck like they are glued in. I did remove the rail from the injectors...but as I said...they are still well stuck in the manifold. I am going to try soaking them with a penetrating spray and see what happens tonight. I'll keep you posted! Thanks!
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Cheers! Ted '86 Silver 944 N/A - Forever in restoration! |
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10-16-2007, 12:50 PM
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Super Moderator
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might be time to send them to witchhunter.com for a good cleaning and flow matching.
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'89 turbo-s (2.7, wolf3d ems, garrett dbb turbo, tial 46mm, etc. fast!) |
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10-16-2007, 03:29 PM
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Long Time Porsche Owner
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OK, got the rail off of the injectors and then proceeded to remove the injectors one by one from the manifold.
I previously soaked the injectors with PD at the manifold seal, so removal was much easier! The new injectors are already installed in the freshly cleaned up manifold. Now on to the next project! Thanks for the help guys!
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Cheers! Ted '86 Silver 944 N/A - Forever in restoration! |
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10-17-2007, 10:22 PM
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1986 Porsche 944 N/A
