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Post by Armageddous on Jan 23, 2011 21:32:09 GMT -5
I would like anybody with a fuel tank out of an EFI car to please take a picture of the tank from different angles. I need to know where the vent and return lines are located on the tank. Anybody who has the respective senders/modules out of the tank would be especially helpful. This is so I can properly configure my EVAP system and make my fuel tank a sealed system. Thanks. Terry
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Post by hollandjusty on Jan 24, 2011 11:18:10 GMT -5
I can make you some pictures in, I suppose, a short amount of time. I'm building a new Justy benchracer and the fueltank has got to go
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Post by Armageddous on Jan 24, 2011 20:37:32 GMT -5
That would be much appreciated. It's too bad you live on the other side of the world, or else I would be interested in purchasing the fuel tank off of you. Terry
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Post by Armageddous on May 13, 2011 21:47:13 GMT -5
I have obtained an EFI fuel tank for my car, now I need a little help with these seemingly random lines. All the diagrams, pictures and explainations I have indicate I should have a pressure line, a return line and an evap/vent line. However my tank has 4 spiggots. I know the pressure comes out of the pump, durr. The return comes in the driver side of the tank, and it is a 5/16" line. The ones I question are two, 6mm spiggots coming out on 90deg angles pointing towards the driver side, on the top front of the tank. Now, I know from emissions diagrams that there is only 3 lines leading to the tank, and only one of those hooks up to the carcoal canister (then to the vsv, intake, etc.) Can anybody shed some light on this? Typically I would suspect a vapor filter, or something, but that can be easily achieved with one connection! The tank is going in tomorrow, I need this information asap. Thanks guys. Terry
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Post by RedRooJusty on May 14, 2011 9:57:43 GMT -5
Terry, the two 6mm lines on my machine are both going to the vapor separator. I believe one is liquid return (from the separator) and the other is tank vapor vent (to the separator). Hope this helps your project. -RRJ
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Post by Armageddous on May 14, 2011 19:14:17 GMT -5
You da man, RedRoo. Here's hopin' my 88 has one of those and will hook up without any issues. Terry
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Post by hollandjusty on May 15, 2011 6:02:53 GMT -5
oh.. I totally forgot about this..
Do you still need some pictures of the gas tank?
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Post by Armageddous on May 15, 2011 11:38:51 GMT -5
Not anymore, I got a tank and now just trying to figure out how to hook it up properly. Now, if you have the aforementioned other peices I may be interested in those. Then again, I can probably get them on this continent for cheaper. Terry
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Post by Armageddous on May 15, 2011 23:26:24 GMT -5
Okay, it is official. A 1992 EFI gastank practically bolts in to a 1st gen, 4wd. A floorpan modification was required to make the access hole larger to facilitate easy changing of the new pump. The old low pressure pump was removed, and the fuel filter took it's place. I did however have to build a 8mm pressure line from the tank to the motor, which I made out of a roll of metal line. I ended up using the old 6mm pressure line as the new return line and simply abandoned the old return line, which is 4.5mm, and practically useless. All the evap related stuff RedRoo has in his picture there are all exactly the same and mounted in the quarter panel. The fuel gauge wires are the same colour, too. This is not to say the job was easy, you basically have to remove the rear end to get the tank out then deal with the line fabrication, rewiring and fuel filter mount. My car seems to run better with this new setup as my old setup was basically hacked together, with a high pressure fuel pump underneath the hood sucking through the low pressure at the tank. All together I would say this procedure took between 5 and 6 hours and I was working in a shop with a hoist and all the tools. Add that to the list and I'm sure I'm over 40hours on my EFI swap, but still would not take it back. Terry
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Post by hollandjusty on May 16, 2011 2:33:46 GMT -5
Very nice Terry! I'm thinking of building my own Gen1 EFI ('85 ) and now I know the gas tanks fits this easy I definitely preserve the EFI tank!
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Post by Armageddous on May 16, 2011 20:32:46 GMT -5
10-4. I'm going to modify my design slightly, in the near future. I don't like the external metal fuel line. To be blunt, it looks like shit. It's tight to the body but still gives the illusion of a hanging unsupported piece of my car, and it's shiny to boot. I am thinking of 2 things I can do. Either strip the dash out of my car and build lines where the stock smaller ones are (unlikely) or probably what I will do is run plastic lines under the body up in the drive shaft tunnel. We have this neat kit at work that allows you to press fittings onto the plastic lines. I think they would look cleaner, and they are way easier to work with. (8mm fuel line is NOT easy to bend). Also this would encourage me to retain a stock EFI Justy fuel filter, while currently I'm using one out of a Ford pickup truck. Terry
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Post by hollandjusty on May 17, 2011 11:11:27 GMT -5
My current Justy has a 1.2MPFI engine so I'll probably end up offering that car ghehe. (Remember, Justys are a lot more common over here in the Netherlands
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Post by Deleted on May 17, 2011 11:28:33 GMT -5
Great news! Do you think it would make sense to use the metal lines in areas that are harder to get to or do you think the plastic lines will last/wear fine? Also - I have used black flex loom around those shiny lines before and it does not look bad, and it protects them and if there is any metal on metal vibrating it could be a spot where rust will happen. I know what you mean though, I cannot leave something that seems un-finished.
I am still working on my Impreza project and just did a similar thing putting my 2004 WRX fuel tank and evap system in my 1995 Impreza coupe. Not easy by any means, but so awesome how Subarus seem to be a little like like Legos.
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