Re: Fuel Tank vent lines? B body
[Re: 440challenger]
#387226
07/26/09 09:43 PM
07/26/09 09:43 PM
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Joined: Apr 2009
Posts: 683
Northern NJ
68 Sat
mopar
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mopar
Joined: Apr 2009
Posts: 683
Northern NJ
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I believe you bought a sending unit that can be used for fuel injection as well. I did the same thing for my 69 Coronet 500. I just blocked the extra line off with a small piece of hose and a clamp around a bolt.It worked fine.
1963 Chrysler 300 Pace Setter Convertible 21K mile survivor
1969 Dodge Coronet 500
1956 Desoto Hemi
1955 Chrysler C300
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Re: Fuel Tank vent lines? B body
[Re: Joshs68]
#387228
07/27/09 12:45 AM
07/27/09 12:45 AM
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Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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One line goes to the vapor line that is supposed to be in the trunk and then goes back down, the other one goes to a short stub line that goes to the shock crossmsmber and is also a vent. If the tank is not vented it will implode as you suck the fuel out. the second line from the sender is the return line from the filter on the engine, and is used on Hemi and 440 cars. Here is pic someone posted on Moparts of their install. 
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Re: Fuel Tank vent lines? B body
[Re: 440challenger]
#387230
07/27/09 07:32 AM
07/27/09 07:32 AM
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Joined: Jan 2007
Posts: 537
Charlotte, NC
Kowal
mopar
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mopar
Joined: Jan 2007
Posts: 537
Charlotte, NC
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It matters a lot, hook them up backward and you get fuel draining out of the lines when your tank is better than half full. Go to the "lift off hood forum", there is a whole string on this... http://a12mopar.com/yabb/YaBB.pl?num=1238949100
Last edited by Kowal; 07/27/09 07:33 AM.
'69 Hemi Charger 500, ‘70 U code Challenger R/T (These and a bunch others at www.dkowal426.com) P.J. O'Rouke: "The old car ran perfectly, right up until it didn't."
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Re: Fuel Tank vent lines? B body
[Re: meepmeep70]
#387234
08/03/09 12:15 AM
08/03/09 12:15 AM
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Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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How is this?
NOT MY PHOTO, found on internet
Last edited by sthemi; 08/03/09 12:19 AM.
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Re: Fuel Tank vent lines? B body
[Re: sthemi]
#387235
08/03/09 12:22 AM
08/03/09 12:22 AM
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Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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And this?
Again not my photos
This one also looks replaced and I dont think the sender wire is going thru exactly the right spot.
Last edited by sthemi; 08/03/09 12:27 AM.
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Re: Fuel Tank vent lines? B body
[Re: sthemi]
#387236
08/03/09 07:38 AM
08/03/09 07:38 AM
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Joined: Feb 2003
Posts: 4,503
NJ
440challenger
OP
master
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OP
master
Joined: Feb 2003
Posts: 4,503
NJ
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Re: Fuel Tank vent lines? B body
[Re: sthemi]
#387237
08/03/09 05:42 PM
08/03/09 05:42 PM
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Joined: Jan 2003
Posts: 2,410
Wichita,KS
Blakcharger440
top fuel
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top fuel
Joined: Jan 2003
Posts: 2,410
Wichita,KS
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Quote:
One line goes to the vapor line that is supposed to be in the trunk and then goes back down, the other one goes to a short stub line that goes to the shock crossmsmber and is also a vent.
If the tank is not vented it will implode as you suck the fuel out.
the second line from the sender is the return line from the filter on the engine, and is used on Hemi and 440 cars.
Here is pic someone posted on Moparts of their install.
The new fuel tank in my 70 charger does not have those 2 vent lines on the driver side of the tank....but it does have another port coming out near the bottom of the sender. I have that one plugged off.
Is that going to cause a problem?
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Re: Fuel Tank vent lines? B body
[Re: Blakcharger440]
#387238
08/05/09 07:09 PM
08/05/09 07:09 PM
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Joined: Nov 2007
Posts: 34
Conn.
b5 69
member
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member
Joined: Nov 2007
Posts: 34
Conn.
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On a 69 road runner the gas vent closest to the driver side goes up into the trunk,the line runs across the floor does a semi loop then appears to go back out through the floor,as in the b body pics above, yet when I look from the under side I can't see where this line goes  Where does it go ? Does it end where it goes back into the floor? Am I missing something? Thanks ,jeff
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Re: Fuel Tank vent lines? B body
[Re: b5 69]
#387239
08/05/09 07:47 PM
08/05/09 07:47 PM
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Joined: Jun 2004
Posts: 3,319
Chicago Burbs
sthemi
master
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master
Joined: Jun 2004
Posts: 3,319
Chicago Burbs
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Yes, It is simply vented to the air just below where it passes thru the floor. That is why parking an old car in an attached garage on a hot day, will not be a pleasant experience, especially with today's nasty gas..
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Re: Fuel Tank vent lines? B body
[Re: b5 69]
#387240
08/05/09 11:17 PM
08/05/09 11:17 PM
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Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
1_WILD_RT
Management Trainee
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Management Trainee
Joined: Jan 2004
Posts: 27,347
Today? Who Knows?
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Quote:
On a 69 road runner the gas vent closest to the driver side goes up into the trunk,the line runs across the floor does a semi loop then appears to go back out through the floor,as in the b body pics above, yet when I look from the under side I can't see where this line goes Where does it go ? Does it end where it goes back into the floor? Am I missing something?
Thanks ,jeff
The line goes through a rubber grommet & dumps the fuel vapor inside the frame rail where it seeps out of the holes punched in the bottom of the rail...
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