changing injectors..with the intake manifold still on

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  • flyingbrick
    Noobie
    • Oct 2003
    • 21

    #1

    changing injectors..with the intake manifold still on

    is it possable? any tips......i really dont want to remove the manifold.....
  • Jordan
    R3V OG
    • Oct 2003
    • 12907

    #2
    sure it is. unbolt the fuel rail (4 1mm bolts) and wiggle it up and out.
    Tenured Automotive Service Professional - Avid BMW Enthusiast

    Vapor Honing & E30 ABS Pump Refurbishment Service
    https://mtechniqueabs.com/

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    • Kavkazia
      Grease Monkey
      • Oct 2003
      • 394

      #3
      Yes, its possible and do as Jordan said but make sure you put new rubber seals.
      95' M3.
      90' 325i Turboed.
      87' 325eS Fixed.

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      • diegom6
        R3V Elite
        • Oct 2003
        • 4447

        #4
        yeah I did in mine, takes few minutes....it's easy but but not so nice to do...little fight should have when you try to put them back...
        Euro M3'87 NogaroSilver/Euro E34 M5 '93/Porsche 993 TT 97' Euro/Porsche 993 Carrera 95' Euro/Skyline R33 GT-R

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        • mspiegle
          E30 Enthusiast
          • Oct 2003
          • 1026

          #5
          where do you buy seals and caps for injectors?
          Michael Spiegle

          '01 Ford Escape / Daily Driver
          '99 M3 / Track Car
          '87 325is bronzit / wtf car
          '06 Daytona Triumph 675 / Daily Rider

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          • rs4pro3
            R3V Elite
            • Oct 2003
            • 5808

            #6
            Dealer, but the seals where $50 for all 13 last time I buaght some. You can also go down to the local hardware store and buy the correct sized O-rings. As for the caps You can remove the seals without removing the caps just make sure not to damage the seal. But the dealer should have the caps.
            85 325e 2.7 ITB'd stroker

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            • flyingbrick
              Noobie
              • Oct 2003
              • 21

              #7
              i think you guys are crazy.....but im trying it anyways...

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              • rward325
                Wrencher
                • Oct 2003
                • 251

                #8
                I just had to do it to replace an injector. It is exactly as Jordan describes it. You have to realise that the injector seals are as old as your car though and probably brittle. The possibility of damaging one or more is real.
                Just livin in the OC minus my E30

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                • flyingbrick
                  Noobie
                  • Oct 2003
                  • 21

                  #9
                  im replacing all of them so i dont have to worry about messing up the removed ones right??

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                  • Jordan
                    R3V OG
                    • Oct 2003
                    • 12907

                    #10
                    Originally posted by rs4pro3
                    You can also go down to the local hardware store and buy the correct sized O-rings.
                    I would advise against that. Chances are those hardware store o-rings are not made of fuel grade rubber. Normal rubber will get soft, and swell... followed by just about disolving if exposed to gasoline for a prolonged period of time.
                    Tenured Automotive Service Professional - Avid BMW Enthusiast

                    Vapor Honing & E30 ABS Pump Refurbishment Service
                    https://mtechniqueabs.com/

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                    • rs4pro3
                      R3V Elite
                      • Oct 2003
                      • 5808

                      #11
                      YA that is why I buaght them brand new at the dealer.
                      85 325e 2.7 ITB'd stroker

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                      • bkelsey86
                        Banned
                        • Oct 2003
                        • 1173

                        #12
                        man go to the auto parts store i bought new seals and caps all 6 for like less then 10 dollars

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                        • matt325is
                          E30 Addict
                          • Oct 2003
                          • 409

                          #13
                          Do as bkelsey86 said. Remember, since we have the same as fords, you can also get ford pieces for the injectors. Or if you want, Volvo, or mercedes, or anything with that style injector. LIke my injectors, i dont know what they are for, I took the chance in that they kinda looked like ours, and they work! they are 15ish ohms 32lb/hr, and I paid less than Ireland engineering wants for their "hi flow" injectors (probably 19 or 21lb/hr) . The only bad thing about mine are they are a single pintle design, an M50 injectors have 4, which atomize the fuel a lot better. But i need more flow than 21.5lb/hr.


                          matt

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