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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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930 fuel evaporator bottle
Can this be removed without any issues? Or does is serve some special purpose?
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04-05-2004, 12:35 PM
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Registered
Join Date: Jan 2003
Location: San Francisco Bay Area
Posts: 1,194
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Brent - are you talking about the bottle that sits by the fluid reservoir in the driver's side front fender? If so, I believe this is important as it allows excess fuel vapor to bleed off (I think). There is a post somewhere on Pelican where someone put a second fender cooler in that space and made a smaller fuel vapor canister to mount elsewhere.
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Bill Last edited by ZCAT3; 04-05-2004 at 01:59 PM.. |
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04-05-2004, 01:55 PM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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Yeah I know and I have asked him what he thinks since he mentioned you could just cap it off? Just wondering what anyone else knows about this. I would think you would have to vent the fumes at the very least. Also during a track session you might need the bottle incase fuel backs up through the line. Depending on what happens this summer I might be installing a second cooler at the drivers side. It would be nice to just eliminate the bottle instead of relocating it inside the trunk.
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04-05-2004, 02:01 PM
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Registered
Join Date: Jul 2002
Location: Southern California
Posts: 5,067
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1984 Targa |
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04-06-2004, 10:05 AM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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Thanks, alot of info about this subject. So isn't there a third hose that runs through the trunk and vents out to the front? That is what mine does I think. There is a hose that runs along where the fuse box is and out the front. It definently smells like gas. Somewhere a hose needs to vent the gas tank so it doesn't cause a vacuum. Is that the one line that goes to the bottle then the hose I'm talking about to atmosphere?
Brent |
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04-06-2004, 11:13 AM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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OK, I get it...that third hose i stricktly for venting I think. So I should be able to tie the 2 hose at the bottle together, right?
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04-06-2004, 11:18 AM
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Registered
Join Date: Jul 2002
Location: Southern California
Posts: 5,067
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On my 84 there were only two hoses. One vented from the tank, and the other was a vacuum line that sucked the fumes back into the system.
The tank I used had three holes. I used two for the hoses, and put a plug in the third. All of the fittings were sealed with Permatex.
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1984 Targa |
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04-06-2004, 11:23 AM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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I will have to check this out in more detail when I get home and report back tonight or tomorrow.
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04-06-2004, 12:38 PM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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OK, I forgot about that other little bottle inside the trunk. From the top of the gas tank is a port that vents to that little bottle and from where the gas is pumped in there is a port that goes to the other side of that bottle. Then there is a line from that little bottle that goes outside to the fuel evaperator and the line from the top goes back inside and is routed out to the bumper to vent outside. Seems a little overkill and sounds like I could just eliminate the bottle outside then turn the little one around and run a hose from the top to the outside. Not sure if the gas cap is functioning like it should since I'm not sure if it's the stock one. What do you think?
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04-06-2004, 05:57 PM
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SCWDP- Shock and Awe Dept
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Brent, I wouldn’t just vent it out side; you will have fumes build up and when there is a full tank you could even have fuel over flow. I agree that the whole system seems like overkill. I think your best bet is to use a small canister like Scott did, or connect the two lines in the fender together to complete the closed loop. Like you have seen, there is still the little plastic tank in the trunk and the carbon canister in the engine compartment, I think it would be fine.
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Ryan Williams, SCWDP '81 911SC Targa 3.6 '81 911SC Coupe 3.2 #811 '64 VW Camper Bus, lil' Blue |
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04-06-2004, 07:01 PM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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Come to find out that is exactly how it's setup, venting outside from the bottle outside. Also if you connect the 2 lines together your just bypassing the bottle outside. I don't have any carbon canister in the engine compartment. My car is a euro and maybe that was never done? That's why when I got my powerflow intake I had EVOMS plug that smaller port which I believe was for that line. So now what?
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04-06-2004, 07:17 PM
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SCWDP- Shock and Awe Dept
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LOL, got me!
So it goes from the fuel tank, to the bottle, to the atmosphere? Shoot, if it works now, rip the bottle out and leave it alone. If a vacuum line is connected to the bottle, plug it so you don’t have a leak. Weird.
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Ryan Williams, SCWDP '81 911SC Targa 3.6 '81 911SC Coupe 3.2 #811 '64 VW Camper Bus, lil' Blue |
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04-06-2004, 07:22 PM
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"Cheap is expensive"
Join Date: Oct 2003
Location: Colorado
Posts: 514
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From the tank to that little bottle inside the trunk then a line to the evaperator bottle outside. At the other end of the bottle inside to where you pump the gas in. Then the line up top from the bottle outside venting to atmosphere. So if I examine the bottle outside and can see there hasn't been any fuel in it then I could just connect the two lines together. Though my idea was to turn the little bottle inside around so the vent line is up higher.
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04-06-2004, 07:32 PM
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1981 Porsche 911SC Targa 3.6
