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Old 04-10-2010, 07:29 PM   #1
Drachenord
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Default fuel rail removal and installation

OK I got the damned thing off to replace a bad o ring on the bottom of an injector, now no matter what i do i cant get the o rings on the top of the injectors to seat properly in the fuel rail, how exactly is this done? I am doing it with the intake still installed in the car, am i missing some simple trick?
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Old 04-10-2010, 07:43 PM   #2
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Vaseline or fuel on the o-rings? Helps them slide a bit...
Try using a stiff screwdriver/small pry bar to lever off the manifold and top of the rail to pop them in...
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Old 04-10-2010, 07:51 PM   #3
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When I replaced the injectors on my M50, I had this same trouble. What I ended up doing was dipping them in fuel (I would've used vaseline had I had it) and applying most of my weight to them to pop them in. They were out of the car. Otherwise, I don't think I could've done it. On the bright side, once you get them in, you're pretty much guaranteed to have a perfect seal.
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Old 04-10-2010, 08:01 PM   #4
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good lord I lubed them up and reefed on it with a crowbar, 2 foot long wrench and whatever else i could get my hands on, one side goes on and when I try the other side the one I got on pops off, its like pulling teeth
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Old 04-10-2010, 08:05 PM   #5
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is it a 6 hour procedure to get the intake manifold off like on my 750? I ordered some intake gaskets so it worse comes to worse I will take it off, I haven't studied up on how hard the bolts are to get at.
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Old 04-10-2010, 08:24 PM   #6
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no, it's not that bad. moving the booster/brake resivior out of the way helps, but you can do without it.
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Old 04-10-2010, 10:31 PM   #7
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anybody done the injectors or resnap on the fuel rail with the intake still bolted on and in the car?

I was in the shower and just got the bright idea of removing the injectors attaching them to the rail and tring to push the injectors into place, for some reason I think if i can macguyver the rail in there with the injectors attached they will pop into the manifold easier than trying to pop them into the rail, if I can fit the assemlby in there??
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Old 04-10-2010, 11:12 PM   #8
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i had a lot of problem with my seal to, make sure you got new o-ring and put a litel bit of oil on the o-ring.
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Old 04-11-2010, 12:29 AM   #9
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ive pulled the fuel rail/injectors twice without removing the manifold, its not hard at all. just pop off you valve cover if you need a bit more wiggle room. you should be installing the injectors into the fuel rail, clipping them on, then install the whole thing onto the manifold.
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Old 04-11-2010, 08:24 AM   #10
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thanks that is my plan, I am going to pull the rest of the injectors today and try it, anyone know if these o-rings are common or not (in other words will they have them in a small town at napa)?
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