Fuel injector removal
Discussion
The day after passing its MOT and me looking forward to another summer of TVR driving the S3 dumped a load of water all over the drive. Turns out a core plug in one of the heads has failed. I toyed with taking the engine out to replace all the core plugs and fix the annoying oil leaks but decided that would mean missing too much of this summer. So I have decided to remove the heads and refurbish the top of the engine. I'll pull the engine out over winter to get at the rest of the core plugs and the oil leaks.
Anyway, to my question. Does anyone know how to get the fuel rail and injectors out of a 2.9? I have everything disconnected and according to the haynes manual I have to simply remove the fuel rail and injectors as one unit. Of course, its not that easy and the fuel rail doesn't want to lift off. I assume that its simply being held by the o-rings sticking in the inlet manifold but I'm struggling to shift it. It does look odd though as the injectors are at opposing angles and I can't see how they would pull out while still attached to the fuel rail. Any suggestions??
Also, once they are out I plan to get the injectors ultrasonically cleaned. Anyone know of a suitable company who can do the cleaning near Reading?
Thanks..Ralph
Anyway, to my question. Does anyone know how to get the fuel rail and injectors out of a 2.9? I have everything disconnected and according to the haynes manual I have to simply remove the fuel rail and injectors as one unit. Of course, its not that easy and the fuel rail doesn't want to lift off. I assume that its simply being held by the o-rings sticking in the inlet manifold but I'm struggling to shift it. It does look odd though as the injectors are at opposing angles and I can't see how they would pull out while still attached to the fuel rail. Any suggestions??
Also, once they are out I plan to get the injectors ultrasonically cleaned. Anyone know of a suitable company who can do the cleaning near Reading?
Thanks..Ralph
Assuming that you have disconnected the hoses, and the 4 little bolts that hold the injector rail on to the manifold, it does pull straight off - it doesn't feel like it, but there is (just) enough flex in the seals in the rail, to let the injectors come out of the manifold. Might just need a good tug.
Putting it back is the same - it doesn't feel like it's going to fit, but then suddenly - it does!
OR - the injectors are held into the rail with little horseshoe clips - you could pull those out and then pull the rail off the injectors. This photo shows the little clips (grey) at the rail joint.
Putting it back is the same - it doesn't feel like it's going to fit, but then suddenly - it does!
OR - the injectors are held into the rail with little horseshoe clips - you could pull those out and then pull the rail off the injectors. This photo shows the little clips (grey) at the rail joint.
Edited by tvrgit on Sunday 31st May 12:34
Pull harder!
Some time back I had mine serviced by Injectortune, can't see an address think it's all done my post?
tvrgit said:
OR - the injectors are held into the rail with little horseshoe clips - you could pull those out and then pull the rail off the injectors. This photo shows the little clips (grey) at the rail joint.
I just took mine apart and this is indeed what I did. After the clips were off, the fuel rail came away with just a few wiggles and a little tug. It was quite easy really. In this way, I was sure that no dirt could fall into the holes where the injectors sit. Check the seals on the injectors and replace if in doubt. My fuel rail was really rusty, so I decided to give a fresh coat of paint. In this case, blue is not the colour, but yellow .... Here is also another place where you can get spares and get the injectors serviced. mrinjectoruk.co.uk
Good Luck!
I bet you wish they did stainless paint Mike 
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