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Trap Door Question

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Old Jun 11, 2009 | 08:20 PM
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Hello,

I will be doing a fuel pump swap soon and do a trap door to get in there.

How much room is there between the body that is to be cut and the wiring/lines on top of the tank?

Is there enough clearance to do the cut with an air nibbler?

Can the tank be dropped a little by loosening the straps?

Thanks in advance
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Old Jun 11, 2009 | 08:53 PM
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I didn't drop the tank at all when I did mine, and i cut it with a cut off wheel, there should be enough room for the nibbler to cut it out just be sure to do the bottom (closest to the hatch) and the sides first so you can see the lines when you get close to them they will be on the top left.
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Old Jun 11, 2009 | 09:27 PM
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DONT DROP THE TANK! you need a dremel with a HD cutting wheel, depending on the year of your car just cut a square hole above the pump. Plenty of room just go slow
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Old Jun 11, 2009 | 11:00 PM
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Not sure there is enough room but there really is not reason to do that. Just use a cut off wheel on a die grinder, go slow. it cuts easy and smooth and it wont distort the plate so you can easily reuse it. I just welded a few tabs on mine and sealed it with silicone.


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Old Jun 11, 2009 | 11:16 PM
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Perfect. Thanks everyone.
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Old Jun 11, 2009 | 11:40 PM
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Used a dremel on mine.

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Old Jun 12, 2009 | 12:47 AM
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It must take days and a ton of wheels with a dremel.

Die Grinder will make quick work of it and easily be able to reuse what you cut off.
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Old Jun 16, 2009 | 10:36 AM
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is the pump in the same position in a camaro 02 as in a t/a?

had a big proplem yester day when the fuel pressure droped and the car loses all the pwr and the air/fuel guges shows lean and when i hold the fuel pressure valve (the one with the green cap) down it didint spill any fuel so every thing points at the fuel pump.. but what about the MAF sensor ?

if you guys have any idea what could be wrong please tell me i am in a real hurry becouse cardays here in ICELAND starts to morow

ps the car has a Walbro 255 lph fuel pump and F.A.S.T. 36 lb. Fuel Injectors

Last edited by icecamaro02; Jun 21, 2009 at 06:45 PM.
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Old Jun 16, 2009 | 12:33 PM
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Originally Posted by icecamaro02
is the pump in the same position in a camaro 02 as in a t/a?

had a big proplem yester day when the fuel pressure droped and the car loses all the pwr and the air/fuel guges shows lean and when i hold the fuel pressure valve (the one with the green cap) down it didint spill any fuel so every thing points at the fuel pump.. but what about the MAF sensor ?

if you guys have any idea what could be wrong please tell me i am in a real hurry becouse cardays here in ICELAND strats to morow

ps the car has a Walbro 255 lph fuel pump and F.A.S.T. 36 lb. Fuel Injectors
that pressue valave is like the one that keeps air in your tire.. So, with the car running/primed you pushed it in and no fuel came out?
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Old Jun 16, 2009 | 02:20 PM
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yes its just like a pressure valve in the tiers en yes when i pushed it no fuel came out ps i am done making a trap door and taking the pump out but it aint easy to find another one over here and plus that just right now the sending unit and the pump(walbro 255) accidently cought fire when i was testing the pump in my hands whit a battery and it destroyd the sending unit so i am in deep **** and deeply ashamed
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Old Jun 17, 2009 | 04:54 PM
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Question

Originally Posted by MrElectric03
Not sure there is enough room but there really is not reason to do that. Just use a cut off wheel on a die grinder, go slow. it cuts easy and smooth and it wont distort the plate so you can easily reuse it. I just welded a few tabs on mine and sealed it with silicone.


What's the height and width of you trap door ?

Thanks!

Last edited by 99Bluz28; Jun 17, 2009 at 05:36 PM.
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Old Dec 9, 2011 | 02:52 PM
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I used an air Hammer.
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Old Dec 12, 2011 | 10:21 PM
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i can understand wanting to do this. but on a serious note...you can have your tank out and on the ground with some jackstands and a basic hand tool set. if you have a 98 tank you may wanna clean it, otherwise dont worry about it and just do as neat of a job as possible when making the door. i personally just couldnt live with cutting up my baby.
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Old Dec 21, 2011 | 03:24 PM
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I can definitely understand why to do this. Due to the ground effects and lowered stance of my T/A, it's a major PITA to even jack the car up, let alone get it high enough to drop tank - and then I would still have to actually drop the tank.

I can open the rear hatch, pull back the carpet & remove the access cover to FP in under 8min without the car ever leaving the ground and me in a standing position
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