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Puff Daddy
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PostPosted: Tue Feb 16, 2016 7:20 am    Post subject: Steel Auxiliary Tank Install Reply with quote

In the process of installing a new auxiliary tank. In the process of disconnecting my old tank, I found this probe. Not sure what it is, and therefore I'm not sure where to connect this hose. Does anybody know what this is?


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Stan
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PostPosted: Tue Feb 16, 2016 7:51 am    Post subject: Reply with quote

That was inside the tank?
What does the attached hose hook up to on the other end?
Stan

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Puff Daddy
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PostPosted: Tue Feb 16, 2016 7:54 am    Post subject: Reply with quote

It was from inside the tank. The hose just sort of disappears up into the truck. I'm not sure what it attaches to. I was hoping you knew so that I would know where to attach the hose on the new tank.
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Stan
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PostPosted: Tue Feb 16, 2016 8:15 am    Post subject: Reply with quote

Hmm - maybe Paul will respond to this - he has a very deep pool Of knowledge when it comes to EBs.
Only thing I can think of is it's some type of vent especially if it was connected at the upper part of the tank.
My factory 68 Aux tank had no vent of any kind not even in the filler tube. I dont know what year the vents were added but maybe this was a way to fix the issues with that ?? -- factory ?? - P.O. modification??
I'm not much help - just Moral Support. Smile

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Puff Daddy
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PostPosted: Tue Feb 16, 2016 8:49 am    Post subject: Reply with quote

Definitely not a PO mod, clearly screws into the tank. My feeling is that it is the vent hose that goes to the charcoal canister, but I just wanted to be sure before I get too deep into this. I only take pause because I'm not sure why the 'thingamajig' is required to vent the tank.
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Stan
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PostPosted: Tue Feb 16, 2016 10:43 am    Post subject: Reply with quote

Well IF it is for the charchol canister then it would attach to an opening toward the top of the tank. I've installed two " new aftermarket" Aux tanks and they both have had vent outlets in the upper portion of the tank.
Neither of the tanks i removed had that "tube " installed though just a " nipple " to attach the vent/canister hose to.

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69brightbluebronco
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PostPosted: Tue Feb 16, 2016 7:25 pm    Post subject: Reply with quote

is it the vent tube?
can be modified per this article to get more capacity in the stock tank.
http://classicbroncos.com/forums/showthread.php?t=158610.

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Puff Daddy
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PostPosted: Wed Feb 17, 2016 5:21 am    Post subject: Reply with quote

Just to be clear, this doohicky is the tube that is sticking out at the very top of the photo.


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Tom

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Stan
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PostPosted: Wed Feb 17, 2016 8:46 am    Post subject: Reply with quote

Is there another outlet to the right of the doohickey?
The info I looked at indicates that the outlet closest to the top of the tank is for the fuel evap system and hooks to the charcoal canister via a connection/tee common with the main tank.
The only aux tank I've worked on with a canister {'76} didn't have that metal tube going into the tank ; the top "nipple" only had a hose running from it to the canister.
I've also read where some of the '73s had a return line from - ??
I think the safest is to find out where/what the hose is connected to. Or you can just hook the hose to the top nipple -- if that's where it was connected before and if you've had no fuel issues with it connected there --

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Tom Dummer
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PostPosted: Tue Feb 23, 2016 7:24 pm    Post subject: Reply with quote

Definitely a petroleum interference regulator for the Offendufenator valve in the event that the Bronco rolls over a speed bump too slowly. It will sense the Metrosexual in the drivers seat and shut down the fuel supply until the driver has copious amounts of dirt & oil under their fingernails. I see you also have the garden hose adapter on the gas tank as well. Good for night hunting gophers with a lighter
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Formerjughead
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PostPosted: Sat Feb 27, 2016 8:20 pm    Post subject: Reply with quote

It's the Deep water fording kit, there should be a ground wire that leads to the front left turn signal 66-69 and to the right front in 70-77. The nipple in the top of the tank is for a blinker fluid pressure equalization valve that allows the rear turn signals, and brake lights, flash at a steady rate while maintaining a 60 lumen output (during braking) while driving at altitude.
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Stan
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PostPosted: Sun Feb 28, 2016 6:01 pm    Post subject: Reply with quote

Yep- them two guys nailed it ! ☺
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Tom Dummer
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PostPosted: Tue Mar 01, 2016 7:05 pm    Post subject: Reply with quote

It scares me to think about what would happen if we weren't here to explain these technical things.
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TonyNokes
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PostPosted: Fri Mar 11, 2016 7:41 pm    Post subject: Reply with quote

See this is why I miss this list!! Far more entertainment per post then other Bronco groups!
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bbronko
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PostPosted: Fri Mar 11, 2016 9:54 pm    Post subject: Reply with quote

I miss all the Bronco email I use to get every day from the list.
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bbronko
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PostPosted: Fri Mar 11, 2016 10:07 pm    Post subject: Reply with quote

I miss all the Bronco email I use to get every day from the list.
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Formerjughead
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PostPosted: Sat Mar 12, 2016 10:37 am    Post subject: Reply with quote

TonyNokes wrote:
See this is why I miss this list!! Far more entertainment per post then other Bronco groups!


That's what I have been saying the whole damn time!!!!
That other site takes themselves entirely to seriously.

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Stan
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PostPosted: Sat Mar 12, 2016 3:48 pm    Post subject: Reply with quote

Don't blame me - I'm only 107 posts behind Tom - Very Happy Very Happy
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Tom Dummer
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PostPosted: Sun Mar 13, 2016 2:20 pm    Post subject: Reply with quote

Oh crap, the old retired perv is catching up!
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nvrstuk
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PostPosted: Tue Mar 22, 2016 7:12 pm    Post subject: Reply with quote

2400 behind ya...
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Tom Dummer
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PostPosted: Sun Mar 27, 2016 7:48 am    Post subject: Reply with quote

Hey Puff, have you played with your probe? Figure out what it does yet?
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DirtDonk
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PostPosted: Thu May 19, 2016 9:50 am    Post subject: Reply with quote

Hey! What'd I miss?

Gotta admit it's the first time I've seen one unscrewed and removed. Not sure if all years used a threaded fitting, or if some were molded into the tank. But it's consistent with the standard vapor recovery stuff.
When you say it dissapears into the truck Puff, does it run upward into a rubber grommet up inside the fender well with some other similar tubes? If so, that's just the collecting tube for the condensing tank behind the driver's shoulder panel inside the truck. Typical stuff for any EB from mid-'70 to '75.
Your new tank "should" already have one installed I would think. If it didn't, and you're still wondering about it, I would definitely install it in the new tank if it fits. It's one of the good "smog" systems. Just like a working PCV system.

Paul

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TonyNokes
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PostPosted: Fri Jun 17, 2016 9:34 pm    Post subject: Aux Tank Vent Modification Reply with quote

Thanks to this post/thread I decided to add a vent to the aux tank so it would fill better and maybe hold more.

I drilled an undersized hole and threaded the fitting in. Next I used JB Weld's WaterWeld to ensure it will stay put and not leak.

I also unthreaded the fill fitting from the tank, cleaned and resealed it because it was seeping.

I have not filled it yet, so no performance review for you!

Tony



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DirtDonk
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PostPosted: Sat Jun 18, 2016 8:26 pm    Post subject: Reply with quote

Sounds good. Can't wait to hear about the success of your mod. Not wanting to hear it was an epic failure of course!!!

Good luck. JBW is good stuff, so hopefully it holds up it's end.

Paul

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'71 Bronco - 302 4v
3.5" WH/Skyjacker Lift
33 x 11.50 x15 Thornbirds on 15x7 Enkei's
Kayline soft top
Hanson bumpers
Dual batteries, Large 1G alt.

WWW.WILDHORSES4X4.COM Mr. Green
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Puff Daddy
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PostPosted: Sun Jun 19, 2016 4:42 am    Post subject: Reply with quote

I'm glad to see some good has come from this thread, and that you've all been having fun.

Paul, what you describes sounds about right. I was going to attach it to one of the upper fittings on the tank, then just cap anything that wasn't used.

You know, I completely stalled on this project. Things got busy at work, and then all of a sudden the movers are here loading us out. I'll have to come back to this someday down the road. The tank is still sitting on the garage floor, and all the hardware is in a 5 gallon bucket next to it.

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