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installing a new fuel pump

This is a discussion on installing a new fuel pump within the General Help forums, part of the LSx Technical Help Section category; Hey everyone well i have everything in the FSU in place..but when i go to reinstall it in the tank ...

  1. #1
    King 0f n00bz shady milkman's Avatar
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    installing a new fuel pump

    Hey everyone

    well i have everything in the FSU in place..but when i go to reinstall it in the tank i cant...the bottom hits the tank and it wont seat correctly...is there any secret to reinstalling the FSU ? i already tore up my seal ..so i am thinking i will need a new one.

  2. #2
    Visualize°Design°Create SSwt00SS's Avatar
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    sounds like you might not have the sock end of the FSU correctly seated back in the tank, thus not allowing you to set it correctly. i used a coat hanger to pinch the unit while installing until i felt it go in like it should.

    it was a bitch even with pulling the tank. as for doing it through the access hole, i cant tell ya!

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by SSwt00SS View Post
    sounds like you might not have the sock end of the FSU correctly seated back in the tank, thus not allowing you to set it correctly. i used a coat hanger to pinch the unit while installing until i felt it go in like it should.

    it was a bitch even with pulling the tank. as for doing it through the access hole, i cant tell ya!
    with the racetroix unit the sock is millimeters from the bottom of the fsu....doesnt hang like the old sock would.

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    King 0f n00bz shady milkman's Avatar
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    i need to find a way to be able to bend the fsu once it is mostly in....

    i want to know why GM made the unit so damn long and angled..why they wouldnt make it a small little unit that would be easy to install.

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    Veteran 0rion's Avatar
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    it's spring loaded.....just keep pushing it until it goes down and then you'll have to hold it down while you get the retainer started. Real bitch to get that all started by yourself but I done it....on a few pumps. Hammer and screwdriver are your friends.

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by 0rion View Post
    it's spring loaded.....just keep pushing it until it goes down and then you'll have to hold it down while you get the retainer started. Real bitch to get that all started by yourself but I done it....on a few pumps. Hammer and screwdriver are your friends.
    so just install it straight up get it in and just push down on it ???


    i dont know what i would do with the hammer and screw driver

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    Visualize°Design°Create SSwt00SS's Avatar
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    Quote Originally Posted by shady milkman View Post
    with the racetroix unit the sock is millimeters from the bottom of the fsu....doesnt hang like the old sock would.
    use a metal hanger. i hooked on to the very end (as close to the sock as i could and 'bent' the FSU as you put it back in.

    plus you have to get the cuss words your using in the right sequence as well, for it to go in!

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by SSwt00SS View Post
    use a metal hanger. i hooked on to the very end (as close to the sock as i could and 'bent' the FSU as you put it back in.

    plus you have to get the cuss words your using in the right sequence as well, for it to go in!
    tiiiiiiiiiiitz ..that is what you are talking about...i see it now..i will try it tomorrow....it doesnt help that i am in a unheated garage with over a foot of snow outside...my fingers were going num.....


    if my seal is nicked a little...should i buy a new one ?

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    Veteran 0rion's Avatar
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    just put it in at an angle and then push the spring down until it gets below the seal. N/M on the screwdriver part....that's how I get the retainer out. You can just tap it in to install it.

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    Visualize°Design°Create SSwt00SS's Avatar
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    Quote Originally Posted by 0rion View Post
    You can just tap it in to install it.
    just TAP it in, TAP, TAP, TAP, just a little TAPEROO!!!



    Orion, it appears the FSU is to good for its home!!!

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    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by SSwt00SS View Post
    just TAP it in, TAP, TAP, TAP, just a little TAPEROO!!!

    Click for full size

    Orion, it appears the FSU is to good for its home!!!

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    King 0f n00bz shady milkman's Avatar
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    still cant get it in...i can get 2 to 3 of the retainers started..but then the side where the fuel lines come out..is pointed up and i cant get the other ones started..tried the hanger...didn't work..and pushing on it only went so far......im so pissed right now

  13. #13
    Veteran 0rion's Avatar
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    keep after it....you'll get it figured out. You're putting it in to where the sock is all the way towards the back of the tank right?

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    King 0f n00bz shady milkman's Avatar
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    Quote Originally Posted by 0rion View Post
    keep after it....you'll get it figured out. You're putting it in to where the sock is all the way towards the back of the tank right?
    yup..where the fuel lines are facing the correct way...it is still pushing on something..

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    Hide ya kids Hide ya wife 94ss06gxp's Avatar
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    and i helped get one of the nuts on

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    King 0f n00bz shady milkman's Avatar
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    got it....the 98s tanks have a section at the bottom that is like a box with a cut out the shape of a half circle. The pump was hitting on it...once i figured that out..i put the pump in at a different angle. This didn't work though because my fuel tube and the regulator tube was in the way. I took two zip ties and tucked them tighter for improved clearance (racetronix did not tell me that) after i did that..i was able to get it seated and get the retainer nuts on besides the last one..needed levi's help with the hammer to get it.

    the car runs good and without the cover on...i can hear the pump really flowing ..pretty loud...but she runs good

  17. #17
    Veteran 0rion's Avatar
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    bout damn time shady I take it you were doing it through a hole? That was half your problem....easier to work on them laid out on the floor in front of you. Glad you got it back together.

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    Spaz is My Mentor SMWS6TA's Avatar
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    Quote Originally Posted by shady milkman View Post
    got it....the 98s tanks have a section at the bottom that is like a box with a cut out the shape of a half circle. The pump was hitting on it...once i figured that out..i put the pump in at a different angle. This didn't work though because my fuel tube and the regulator tube was in the way. I took two zip ties and tucked them tighter for improved clearance (racetronix did not tell me that) after i did that..i was able to get it seated and get the retainer nuts on besides the last one..needed levi's help with the hammer to get it.

    the car runs good and without the cover on...i can hear the pump really flowing ..pretty loud...but she runs good


    Shady you didn't think to get a pic of that did you? I'll have the same problem when I go to do this since we have the same yr.


    Also, will the plastic from the zip ties get eaten from the gas and latter become a problem?

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    Senior Member JayTA98's Avatar
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    Quote Originally Posted by SMWS6TA View Post
    Shady you didn't think to get a pic of that did you? I'll have the same problem when I go to do this since we have the same yr.


    Also, will the plastic from the zip ties get eaten from the gas and latter become a problem?
    I will think the zip tie will get eaten by the gasoline with time but I don't think it will cause an issue since the pump has a sock in it.

  20. #20
    King 0f n00bz shady milkman's Avatar
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    In the instructions it said to zip tie one of the tubes....but the kit didn't come with one...it was weird

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