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Thread: Fuel Injectors

  1. #1
    Join Date
    Feb 2004
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    558

    Default Fuel Injectors

    I think I broke a couple of these "fins" on the tip of the injector, or they were like this when the injector was removed. The o-ring at the other end is easy to replace but what about the o-ring near the tip?

    http://www.geocities.com/frothlikn/classic_tan18.html

  2. #2
    Join Date
    Jun 2004
    Location
    Quebec, Canada
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    196

    Default

    Have you thought of going with a set of 19lb injectors?


    1992 BMW 535i - New Headlights, cold air intake and Supersprint Exhaust

    Marc

  3. #3
    Join Date
    Dec 2003
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    baton rouge, loserana
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    Default

    those plastic caps with the fins are generally known as injector heat shields, they pop off with some difficulty then you slide on a new o-ring and new heat shield, i don't have the part number or id list it they should come with o-rings as a kit

    Quote Originally Posted by Hector
    I think I broke a couple of these "fins" on the tip of the injector, or they were like this when the injector was removed. The o-ring at the other end is easy to replace but what about the o-ring near the tip?

    http://www.geocities.com/frothlikn/classic_tan18.html
    all america wants is cold beer warm cat and a place to take a poop with a door on it

  4. #4
    Join Date
    Dec 2003
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    Eastern Tennessee USi
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    14,843

    Default

    The 5.0 mustang injectors dont have them deals at all, car still runs. Dont know if it has a performance advantage with them or not.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  5. #5
    Join Date
    Feb 2004
    Posts
    558

    Default You are right...

    those plastic caps are a bitch to take off. You have to literally tear it apart to get the cap off. I was told from BMA that they don't sell o-ring/cap kits for BMW but they do sell them for Mercedes and Volvos of which are all the same. I ordered one to be picked up in a couple of hours. I got some vacuum grease for the o-ring and for the cap to help put it over the injector. I hope installation is easier than removal.

    I thought about the 19 lb injectors and is something that I might consider later. This has been discussed in some length on the board before but I need to learn more about it before I sink my teeth into it. It's still not clear to me if injector switch-over has an added benefit. I think there was a discussion a while back that this coupled with the MAF gives you better fuel economy but again I'm still green on the topic.

    Thanks!

  6. #6
    Join Date
    Jan 2004
    Posts
    4,150

    Default Hector I don't believe there is an added benefit but the cost is certainly much less

    if you need to replace the original ones.. If i were to replace mine I would probably use these not expecting any gains just looking to save money on replacement injectors that should work as well as stock or slightly more efficient than stock.

    Quote Originally Posted by Hector
    those plastic caps are a bitch to take off. You have to literally tear it apart to get the cap off. I was told from BMA that they don't sell o-ring/cap kits for BMW but they do sell them for Mercedes and Volvos of which are all the same. I ordered one to be picked up in a couple of hours. I got some vacuum grease for the o-ring and for the cap to help put it over the injector. I hope installation is easier than removal.

    I thought about the 19 lb injectors and is something that I might consider later. This has been discussed in some length on the board before but I need to learn more about it before I sink my teeth into it. It's still not clear to me if injector switch-over has an added benefit. I think there was a discussion a while back that this coupled with the MAF gives you better fuel economy but again I'm still green on the topic.

    Thanks!

  7. #7
    Join Date
    Feb 2004
    Posts
    558

    Default You are right! I forgot about that little detail. m=>

    I ordered one injector cause I had torn it up removing the plastic cap. It was $44 at BMA compared to $70-something from BavAuto. Are the 19 lb injectors lower than BMA's price?

  8. #8
    Join Date
    Jan 2004
    Posts
    4,150

    Default They are about 33 each for the new design 3 ones as shown here

    Here at five oh



    Quote Originally Posted by Hector
    I ordered one injector cause I had torn it up removing the plastic cap. It was $44 at BMA compared to $70-something from BavAuto. Are the 19 lb injectors lower than BMA's price?

  9. #9
    Join Date
    Feb 2004
    Posts
    558

    Default Thanks Bill. I'll be mindful about this later. m=>

    Right now I just want to get this car up and running. I'm pretty excited. I think I'll have a chance to put foot-to-pedal tomorrow. If all goes well, then I got to install the mods I purchased and I'll be one happy camper.

    Quote Originally Posted by Bill R.

  10. #10
    Join Date
    Feb 2004
    Posts
    558

    Default Just a little update m=>

    Well
    Quote Originally Posted by Hector
    I was told from BMA that they don't sell o-ring/cap kits for BMW but they do sell them for Mercedes and Volvos of which are all the same.
    is not true. Just looked at the o-rings/cap kit. Although the cap fits of the injector nozzle it doesn't have the fins so I didn't wanna risk it and decided not to purchase. FYI: Checked on the price of the Bosch/Ford 19 lb injectors at BMA and they run 48 dollas. So Bill's site is cheaper. I think I will change all injectors during xmas time.

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