FUEL SMELL IN CAB
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Junior User
Joined: Jun 1999
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FUEL SMELL IN CAB
HEY, I HAVE A QUESTION THAT IS PROBABLLY COMMON, SO HERE GOES. I HAVE 65 F-100 W/THE TANK BEHIND THE SEAT AND WAS JUST WONDERING IS IT COMMON FOR THE CAB TO SMELL OF FUEL EVEN WHEN EVERYTHING IS TIGHT, AS FAR AS THE FILLER TUBE,CAP SEAL,GASKET ON THE SENDING UNIT, NO HOLES IN THE TANK ECT. I HAVE HEARD IT IS JUST SOMETHING THAT COMES WITH THE DESIGN BUT I WAS JUST LOOKING FOR MORE INPUT, ALSO WHEN THE TANK IS FULL, I HEAR A "KNOCKING" BEHIND THE SEAT. COULD IT BE SOMETHING WITH THE FLOAT IN THE SENDING UNIT CLATTERING AGAINST THE TANK ITSELF? JUST A GUESS. THANKS ALOT FOR ALL THE HELP!
Posting Guru
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From: Inthepast
FUEL SMELL IN CAB
[b]The subject line says it all. [img]/dcforum/Images/wink.gif[/img]
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<font color="#f80732" size="4" face="Graphite Light">Stock Man
</font><font color="#0000FF" size="2" face="Graphite Light">1967 F-250 FE 390 4wd</font>
<font color="#0000FF" size="2" face="Graphite Light">1966 F-250 I6 240 2wd LWB Flare Side</font>
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>
Posting Guru
Joined: Jul 1999
Posts: 1,558
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From: Inthepast
FUEL SMELL IN CAB
[b]
The subject line says it all. [img]/dcforum/Images/wink.gif[/img]
------
<font color="#f80732" size="4" face="Graphite Light">Stock Man
</font><font color="#0000FF" size="2" face="Graphite Light">1967 F-250 FE 390 4wd</font>
<font color="#0000FF" size="2" face="Graphite Light">1966 F-250 I6 240 2wd LWB Flare Side</font>
<a href="http://www.hometown.aol.com/tbeeee">http://www.hometown.aol.com/tbeeee</a>
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
FUEL SMELL IN CAB
Mike, SM says it well, with his html.
Most likely the filler connector is dry rotted and just enough gas is seeping out to smell. First rotate the rubber 180* and see if there is any change.
There shouldn't be any clanking in there, so here is another theory. On top of the tank, there is about a 1 1/2 in. round plate with small nuts on it edge. This is where the sending unit for the guage goes in, and is about all that could clank in the tank. I don't know what might be up with that thing , pull it out, give it a look, and if it's OK, replace, and retighten everything.
Good luck,
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
Most likely the filler connector is dry rotted and just enough gas is seeping out to smell. First rotate the rubber 180* and see if there is any change.
There shouldn't be any clanking in there, so here is another theory. On top of the tank, there is about a 1 1/2 in. round plate with small nuts on it edge. This is where the sending unit for the guage goes in, and is about all that could clank in the tank. I don't know what might be up with that thing , pull it out, give it a look, and if it's OK, replace, and retighten everything.
Good luck,
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
New User
Joined: Dec 1999
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FUEL SMELL IN CAB
I had a '66 Mustang that had a clank sound in the fuel tank, but I know why! I was filling up one day and pulled the nozzle out of the filler tube. The spring that had been on the end of the nozzle didn't come out. Instead it stayed inside the tank. It rolled around around and clattered a lot, but never caused any other problems, so I just left it there. Is this relevant? I don't know.
John
John
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FUEL SMELL IN CAB
it is a metal noise,sure it has something to do w/the sending unit. i didn't hear it until i filled up.
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FUEL SMELL IN CAB
i once had a gas cap fall apart on me and the part that is responsible for the tension fell into the tank. i had to take the tank out and retrieve the darn thing, not really that big of job. anyway, the thing would clank around every time i made a normal right or left turn.
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Senior User
Joined: Jun 1999
Posts: 103
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From: Palo Alto, CA
FUEL SMELL IN CAB
The short rubber vent hoses may look O.K. but bend them a little and you'll probably see cracks show up. I had the same problem and noticed the hoses looked fine but we're in fact leaking vapor. The filler hose may have the same problem for that matter.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
FUEL SMELL IN CAB
Mike have you thourghly checked the rubber for leaks between the filler neck and tank. On two trucks of mine over the years, when that hose was replaced the smell went away. There is no vent on that tank that I am aware of.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
New User
Joined: Nov 1999
Posts: 5
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FUEL SMELL IN CAB
THANKS JOHN, ALL I HAVE DONE IS VISUALLY LOOK AT THE FILLER TUBE. IT LOOKS TO BE IN GOOD SHAPE MAYBE EVEN REPLACED RECENTLY. I HAVE NOTICED THAT THE SENDING UNIT GASKET LEAKS A LITTLE. I KNOW THAT IS THE MAJORITY OF THE SMELL, BUT I WAS JUST WONDERING OF THE CHARACTERISTICS OF THE DESIGN OF THIS MODEL. I APPRECIATE IT.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
FUEL SMELL IN CAB
Hoss, if you aint mad at us, you could turn off the caps, it is known as shouting. You say you know that the sending unit leaks and is causing the smell of gas in your cab. Your title to this thread is Fuel smell in the cab. Get yourself a 1/4 in nut driver and remove the sending unit and take a look at it. You or someone have been in there tinkering around already.
The fellers that live on this block wanted to help you get rid of the smell in your cab, and suggest possibilites of where the noise is coming from. If you want design info, that doesn't smell, pulling our leg does.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
The fellers that live on this block wanted to help you get rid of the smell in your cab, and suggest possibilites of where the noise is coming from. If you want design info, that doesn't smell, pulling our leg does.
John
66 F100s
In the still cool hours of the night, you can hear chevys rusting away.
Elder User
Joined: Oct 1999
Posts: 917
Likes: 3
From: Kelseyville USA
FUEL SMELL IN CAB
I just pulled my Tank level/Sensor today. On the Float (Brass) like a Carb Float only larger. There was a `Plastic` Shield/Guard on it. It faced Towards the Front when the Float is installed. It helps keep the float from hitting the front of the tank when installed and keeps a `Thumping noise to a minimum as the fuel sloshes around. There were no baffels in the tank!!
When I installed the assembly i `Biased` it towards the rear and then tightened the holddown screws.
__JOHN__Õ¿ö
72 F-250
When I installed the assembly i `Biased` it towards the rear and then tightened the holddown screws.
__JOHN__Õ¿ö
72 F-250
