guess what i found today? ive got a gastank hatch :(
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Member
Joined: Nov 2008
Posts: 271
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From: Calgary, Alberta
Car: 1990 Iroc-Z28
Engine: 350HSR
Transmission: HD 700r4 B&M Stage2 SK
guess what i found today? ive got a gastank hatch :(
so i started pulling the carpet out of my camaro today, which i had thought to be un-molested. to my surprise, ive got a fuel sending unit hatch..yay....not really, kinda pi**ed me right off actually.

what do you guys suggest i do? i am rebuilding the car and will be dropping the tank, weld the flap shut or...?

what do you guys suggest i do? i am rebuilding the car and will be dropping the tank, weld the flap shut or...?
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: guess what i found today? ive got a gastank hatch :(
Bend it back down nice like it was, seal it all around with duct tape to keep dirt, etc. out of the car, and put the carpet back over it - it didn't bother you before, it's a done deal, and you'll have easy access to the tank when the pump goes out again (because you know it will)! No one but you will ever lift the carpet up, and thus will never know. In fact, I already forgot about it!
Forgot about what?
Yep!
Forgot about what?
Yep!
Joined: Nov 2006
Posts: 1,698
Likes: 0
From: Connecticut
Car: 1987 Camaro, 1986 Trans AM
Engine: V6 2.8 multi-port and V8 5.0 FI
Transmission: 5-Speed and Automatic
Axle/Gears: no idea
Re: guess what i found today? ive got a gastank hatch :(
or since its already cut....
turn it into a door and you might actually like having it once your tank leaks or fuel pump goes. just a thought
beats dropping the axle and tank to replace the pump
turn it into a door and you might actually like having it once your tank leaks or fuel pump goes. just a thought
beats dropping the axle and tank to replace the pump
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From: Boosted Land
Car: 92 Z28
Engine: Boosted LSX
Re: guess what i found today? ive got a gastank hatch :(
I'll agree with the above. I wouldn't do it this way myself. But hey since its already done finish it off nice.
Check this post out.
https://www.thirdgen.org/forums/fabr...cess-hole.html
Check this post out.
https://www.thirdgen.org/forums/fabr...cess-hole.html
Member
Joined: Sep 2002
Posts: 153
Likes: 0
From: Texas
Car: 1985 Pontiac Trans Am
Engine: 305TPI
Transmission: 700R4
Re: guess what i found today? ive got a gastank hatch :(
Bend it back down nice like it was, seal it all around with duct tape to keep dirt, etc. out of the car, and put the carpet back over it - it didn't bother you before, it's a done deal, and you'll have easy access to the tank when the pump goes out again (because you know it will)! No one but you will ever lift the carpet up, and thus will never know. In fact, I already forgot about it!
Forgot about what?
Yep!
Forgot about what?
Yep!
Joined: Dec 2000
Posts: 2,361
Likes: 2
From: Buffalo, NY
Car: 1984 Trans Am
Engine: LT1
Transmission: T56
Axle/Gears: 10 bolt w/ 4.10 gears
Re: guess what i found today? ive got a gastank hatch :(
I never understood why people cut the access door. Even after the hole is made, the hard lines have to be cut to get the sending unit out... then you need to somehow install appropriate high-pressure fittings on the lines. I'd rather drop the axle and keep my fuel lines and hatch floor intact. I think dropping the axle would be easier and cost less than messing with the fuel lines. To the original poster, I would weld it shut while the axle and tank are out if i were in your position.
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Member
Joined: Sep 2002
Posts: 153
Likes: 0
From: Texas
Car: 1985 Pontiac Trans Am
Engine: 305TPI
Transmission: 700R4
Re: guess what i found today? ive got a gastank hatch :(
I never understood why people cut the access door. Even after the hole is made, the hard lines have to be cut to get the sending unit out... then you need to somehow install appropriate high-pressure fittings on the lines. I'd rather drop the axle and keep my fuel lines and hatch floor intact. I think dropping the axle would be easier and cost less than messing with the fuel lines. To the original poster, I would weld it shut while the axle and tank are out if i were in your position.
Supreme Member
Joined: Sep 2002
Posts: 9,192
Likes: 19
From: Cary, North Carolina
Car: 1992 RS
Engine: Carbed 350
Transmission: 700R4
Axle/Gears: 3.42 posi
Re: guess what i found today? ive got a gastank hatch :(
I didn't say it wouldn't bother me - I'm about as **** as it gets and I hate things done half-a$$ed - but there's not alot can be done unless it's rewelded after the tank is out of the way like suggested. And it's pointless to lose sleep over something that you can't do anything about. That's what they make Celexa for!
Member
Joined: Sep 2002
Posts: 153
Likes: 0
From: Texas
Car: 1985 Pontiac Trans Am
Engine: 305TPI
Transmission: 700R4
Re: guess what i found today? ive got a gastank hatch :(
I didn't say it wouldn't bother me - I'm about as **** as it gets and I hate things done half-a$$ed - but there's not alot can be done unless it's rewelded after the tank is out of the way like suggested. And it's pointless to lose sleep over something that you can't do anything about. That's what they make Celexa for!
Supreme Member




Joined: Jan 2000
Posts: 3,178
Likes: 48
From: Tracy, CA
Car: '87 IROC
Engine: LB9
Transmission: TH700R4
Re: guess what i found today? ive got a gastank hatch :(
Dropping the rear axle to get the tank out really isn't that big of a deal.
IIRC, when I did mine back in '89 just unbolting the lower ends of the shocks was enough to get the axle out of the way.
IIRC, when I did mine back in '89 just unbolting the lower ends of the shocks was enough to get the axle out of the way.
Senior Member
Joined: Nov 2001
Posts: 704
Likes: 1
From: Panama City, FL
Car: 1999 Camaro Z28
Engine: 5.7
Transmission: 4L60E
Re: guess what i found today? ive got a gastank hatch :(
The one in my 87' came out fairly easy once I dropped the axle down but my new 86' was a PITA today. I had the axle on the floor and it was STILL not coming out, I had to bend the fuel filler neck a bit to get ot to come out. While it's out I'm enlarging thath inner fender hole. That was my only hang up. My last 4 never had a problem, this one, SUCKED! Honestly if I count the hrs I have into it people would probably love to get theirs done that fast but to me Its still a pita. Now back to original question, I would weld the hole shut. I don't see the point in cutting the lines, now if you installed some quick-disconnect fuel fittings (some an fittings even? flare the tubes?) wouldn't be so bad. I contemplated this for all of 2 seconds on my 86', and it really is unmolested and 60K miles, I could never bring myself to hacking it up. Good luck with it, sorry that you found that out but it should be fairly easy fix and like previously said, never bothered ya before so don't sweat it, just fix it. If I WERE to do it (cut hole in floor), I would do it like this guy did:




Last edited by RamAirZ; Dec 24, 2009 at 03:28 AM.
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Posts: 545
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From: Rustfree Gilbert Arizona
Car: 1989 IROC
Engine: 305TPI
Transmission: 700R4
Axle/Gears: 2:73 posi
Re: guess what i found today? ive got a gastank hatch :(
So here is the ugliest question of the day...
How do you cut the lines without making alot of sparks and burning down your car?
Wouldn't tin snips just squish up the lines?
How do you cut the lines without making alot of sparks and burning down your car?
Wouldn't tin snips just squish up the lines?
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Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: guess what i found today? ive got a gastank hatch :(
Offset shears: http://www.shoplet.com/Irwin-Offset-...862073211/spdv
Electric shears: http://www.eastwood.com/electric-met...ng-shears.html
Air nibbler: http://www.harborfreight.com/cpi/cta...emnumber=46061
Hand operated: http://www.eastwood.com/supercoup-nr...er-shears.html
I'm sure I've missed a few other items that would work just as well.
Electric shears: http://www.eastwood.com/electric-met...ng-shears.html
Air nibbler: http://www.harborfreight.com/cpi/cta...emnumber=46061
Hand operated: http://www.eastwood.com/supercoup-nr...er-shears.html
I'm sure I've missed a few other items that would work just as well.
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iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: guess what i found today? ive got a gastank hatch :(
Offset shears: http://www.shoplet.com/Irwin-Offset-...862073211/spdv
Electric shears: http://www.eastwood.com/electric-met...ng-shears.html
Air nibbler: http://www.harborfreight.com/cpi/cta...emnumber=46061
Hand operated: http://www.eastwood.com/supercoup-nr...er-shears.html
I'm sure I've missed a few other items that would work just as well.
Electric shears: http://www.eastwood.com/electric-met...ng-shears.html
Air nibbler: http://www.harborfreight.com/cpi/cta...emnumber=46061
Hand operated: http://www.eastwood.com/supercoup-nr...er-shears.html
I'm sure I've missed a few other items that would work just as well.
TGO Supporter
Joined: Sep 2000
Posts: 6,775
Likes: 27
From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
Re: guess what i found today? ive got a gastank hatch :(

Good catch on my reading fail

Cutting the fuel lines, a small tubing cutter would work good: http://www.harborfreight.com/cpi/cta...emnumber=92878
Last edited by deadbird; Dec 27, 2009 at 01:27 PM.
Joined: Sep 2007
Posts: 1,543
Likes: 120
From: Fayette County, OH
Car: basic third gens
Engine: that I like
Transmission: to restore
Axle/Gears: and enjoy
Re: guess what i found today? ive got a gastank hatch :(
I found a much larger and uglier hole in my '88 when I pulled up the carpet, and there was a very large section missing. I cut a new "access door" from a parts car, then screwed it down with some very short self-tapping screws. Then sealed it with sealing tape, and covered that with masking tape to keep the carpet from sticking to it.
Member

Joined: Aug 2005
Posts: 439
Likes: 1
From: Round Rock
Car: 1989 Formula 350 LSX
Engine: 5.3, 234/228 cam
Transmission: Stage II 4L60e, Vigilante 3200
Axle/Gears: 3.42
Re: guess what i found today? ive got a gastank hatch :(
My car was also a victim of the "fuel door" evil. The shop that built my swap initially used a LS2 fuel pump on my car, which failed (or so I was told, LSx pumps are totally different though 0.o). They then decided instead of dropping the tank again, to just cut a hole in the rear. Now it smells like gas after sitting. Time for me to do the full door/hinge setup with a nice seal. I wonder how long I have before their lines start leaking and burn my car down...
Banned
iTrader: (12)
Joined: Jul 1999
Posts: 12,212
Likes: 13
From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: guess what i found today? ive got a gastank hatch :(
Check the seal of the pump. If the seal it bad, you'll get fumes.
If the exhaust is bad, you'll get exhaust. Almost 3 years later (after the hole was cut) & despite having NO gas door, I get ZERO gas fumes nor exhaust inside my car.
If the exhaust is bad, you'll get exhaust. Almost 3 years later (after the hole was cut) & despite having NO gas door, I get ZERO gas fumes nor exhaust inside my car.
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