Gas tank gasket - NJFBOA - Home of New Jersey's Camaros and Firebirds

coolmanvette75 · 10-16-2010, 11:03 AM

HELP....I'm trying to replace the rubber gasket on the top of the gas tank on my '94 Z28. There was a huge hole cut in the rear deck by a previous owner, so it appears that the pump has already been replaced. The gasket is dry rotted and the tank is leaking gas around the opening. I have found an original OEM gasket p/n 10152293 but when I remove the five screws holding the retaining ring I can't remove the entire assembly from the tank. The metal lines on the outside limit the movement. See the attached picture. Do I need to remove the two rubber hoses to get the assembly out??? What is the trick??? I really don't want to drop the tank down to do the job. I have everything apart, so a quick reply would greatly be appreciated. I'm in Old Bridge if anyone is in the neighborhood and wants to assist........THANKS

V · 10-16-2010, 11:20 AM

yes you need to remove the rubber lines to remove the whole assembly.

However have you tried maybe "fishing" the new gasket down into the tank and up around the sender assembly? and then just cut the old one off.

coolmanvette75 · 10-16-2010, 11:37 AM

Thanks for the reply. I kinda thought that was the way to do it. I wish I could fish the new one from inside the tank but the assembly seems to go down forever. I was thinking to use a visegrip to hold the two rubber lines after I remove them from the gas tank round top piece so they wouldn't fall into the tank.

Featherburner · 10-16-2010, 12:21 PM

You need to remove the lines attached to the metal lines foward of the tank. Not the ones in the tank!

coolmanvette75 · 10-16-2010, 01:21 PM

The lines outside of the tank are solid metal with no point to disconnect them. Do they need to be cut and then spliced????? Someone got it out before without cutting the outside lines.

//<86TA>\\ · 10-16-2010, 03:53 PM

Quote:

Originally Posted by coolmanvette75

The lines outside of the tank are solid metal with no point to disconnect them. Do they need to be cut and then spliced????? Someone got it out before without cutting the outside lines.

usually when people hack a huge friggen hole in the trunk to change the fule pump, they cut all 4 lines to get the sender out, then splice them back together. From your pics it looks like the cut the tubing inside the tank to get the pump out and spliced it back together with a piece of rubber and those hose clamps you see there. Those are NOT rated for that kind of pressure, and really should be fixed properly

You need to cut the lines to get it apart, or drop the tank.

this is the "right" way to do it

this is the more wrong way

V · 10-16-2010, 04:50 PM

its too easy to drop the tank... i hate seeing cars cut like that....

Anti_Rice_Guy · 10-16-2010, 04:58 PM

Quote:

Originally Posted by V

its too easy to drop the tank... i hate seeing cars cut like that....

V · 10-16-2010, 05:24 PM

Quote:

Originally Posted by Anti_Rice_Guy

i took my tank out a few times and i even did Knipps pump from under the car dropping it about half way.

//<86TA>\\ · 10-16-2010, 05:49 PM

Quote:

Originally Posted by V

its too easy to drop the tank... i hate seeing cars cut like that....

x2, but many people are lazy.

RamAir95TA · 10-17-2010, 10:19 AM

Holy **** is there some crappy info here. Do NOT cut any metal lines either inside the tank or outside. All of the metal fittings have quick-disconnects forward and to the left of the hole. If you have to extend the hole to the left to get to them that's okay. There are also two rubber connections (for the EVAP and fuel tank vent) to be disconnected as well. Once you have all four lines disconnected you can pull the entire assembly up and out.

//<86TA>\\ · 10-17-2010, 02:31 PM

Quote:

Originally Posted by RamAir95TA

Holy **** is there some crappy info here. Do NOT cut any metal lines either inside the tank or outside. All of the metal fittings have quick-disconnects forward and to the left of the hole. If you have to extend the hole to the left to get to them that's okay. There are also two rubber connections (for the EVAP and fuel tank vent) to be disconnected as well. Once you have all four lines disconnected you can pull the entire assembly up and out.

thats true, the pics i posted are for 3rd gens, without the quick-disconnects.

coolmanvette75 · 10-20-2010, 07:51 PM

Quote:

Originally Posted by RamAir95TA

Holy **** is there some crappy info here. Do NOT cut any metal lines either inside the tank or outside. All of the metal fittings have quick-disconnects forward and to the left of the hole. If you have to extend the hole to the left to get to them that's okay. There are also two rubber connections (for the EVAP and fuel tank vent) to be disconnected as well. Once you have all four lines disconnected you can pull the entire assembly up and out.

Thats exactly what I did and the whole assembly was out in a minute or two. The quick disconnects weren't so quick though. A real pain in the backside. The new gasket has been installed. Now I'm ready (I hope) for the show this Saturday. See you at the show or at Cheesequake rest stop on the GSP for the caravan up to the track.