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rneithammer Samba Member
Joined: November 09, 2007 Posts: 197 Location: Media, PA, USA
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Posted: Sat Mar 23, 2013 1:23 pm Post subject: 71 Bay fuel tank outlet nipple |
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I want to install a fuel cutoff solenoid valve in my bus - a fire prevention thing. I figured that the best thing I could do is unscrew the fuel tank outlet hose nipple and, using whatever pipe thread adapters might be needed, screw the solenoid valve into the tank outlet, and, again with pipe thread adapters, screw the nipple into the solenoid valve. Is it possible to remove the nipple from the tank? Is there an excessive risk of breaking something? What size is the thread on the tank? Has anyone ever done this, and, if so, how did it work out? |
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rustybusjef Samba Member
Joined: December 19, 2011 Posts: 329 Location: EVERETT WASHINGTON
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Posted: Sat Mar 23, 2013 3:54 pm Post subject: |
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aircooled.net and others sell AN6 & 8 fittings for your bus. I would get a soleniod first and try to match something up . No smoking while you're doing this! |
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old DKP driver Samba Member
Joined: March 30, 2005 Posts: 4145 Location: Los Gatos,Ca.
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Posted: Sat Mar 23, 2013 4:26 pm Post subject: fuel cutoff |
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Maybe' Desertbusman' will chime in on this as i think he has done this.
or, send him a PM. _________________ V.W.owner since 1967 |
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Tcash Samba Member
Joined: July 20, 2011 Posts: 12844 Location: San Jose, California, USA
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Posted: Sat Mar 23, 2013 5:43 pm Post subject: |
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Hi, you may need to put the shut off solenoid inline down stream from the tank.
Thanks to attwell.com
http://www.ratwell.com/technical/Microfiche/t202100.gif
Notice #5 is a filter screen and #4 is the nipple that sticks out of the bottom of the tank.
Can you post which solenoid you go with.
Good Luck |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51057 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sat Mar 23, 2013 5:50 pm Post subject: |
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I can't recall the thread on the outlet but it's the same as an oxygen sensor on a modern car.
Most people remove the nut/screen/nipple and tap the inside of the tank outlet to 1/4" NPT. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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skills@eurocarsplus Samba Peckerhead
Joined: January 01, 2007 Posts: 16803 Location: sticksville, ct.
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Posted: Sat Mar 23, 2013 7:23 pm Post subject: |
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18x1.5 M18x1.0 for the thread size
or just do this and call it a day
http://www.socalautoparts.com/product_info.php/aftermarket-fuel-tank-bung-plain-aluminum-p-12183
AN fittings get spendy. good ones aren't cheap
edit in blue
Tcash _________________
gprudenciop wrote: |
my reason for switching to subaru is my german car was turning chinese so i said fuck it and went japanese....... |
Jake Raby wrote: |
Thanks for the correction. I used to be a nice guy, then I ruined it by exposing myself to the public. |
Brian wrote: |
Also the fact that people are agreeing with Skills, it's a turn of events for samba history |
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rneithammer Samba Member
Joined: November 09, 2007 Posts: 197 Location: Media, PA, USA
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51057 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sun Mar 24, 2013 8:16 am Post subject: |
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That's nice looking, but at the same time complex and spendy. I like the tank adaptor, I'd use it and fabricate my own lines using AN817 or AN818 series flare nuts opposed to that union, then I could put the pump wherever I liked and it wouldn't be hanging off a fitting. (you'll need the inner collars for the 818 fittings)
_________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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TomWesty Samba Member
Joined: November 23, 2007 Posts: 3482 Location: Wyoming,USA
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Posted: Sun Mar 24, 2013 8:51 am Post subject: |
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busdaddy wrote: |
That's nice looking, but at the same time complex and spendy. I like the tank adaptor, I'd use it and fabricate my own lines using AN817 or AN818 series flare nuts opposed to that union, then I could put the pump wherever I liked and it wouldn't be hanging off a fitting. (you'll need the inner collars for the 818 fittings)
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When you say pump, do you mean shutoff valve? _________________ If you haven't bled on them, you haven't worked on them.
Visit: www.tomcoryell.com and check out my music! |
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rneithammer Samba Member
Joined: November 09, 2007 Posts: 197 Location: Media, PA, USA
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Posted: Sun Mar 24, 2013 8:54 am Post subject: |
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Where can I find the flare nuts and tubing? Didn't see those items on the AN Direct site... |
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Tcash Samba Member
Joined: July 20, 2011 Posts: 12844 Location: San Jose, California, USA
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Posted: Sun Mar 24, 2013 8:54 am Post subject: |
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Hi, what if you flare the end of the outlet tube and adapt that to the solenoid?
Then you would be able to retain the screen in the tank. You could take it further and install an inertia switch so if you get hit from behind it will shut off the fuel.
X2 on what daddy said, if you hang the solenoid off the fitting. The harmonic vibrations will eventually end up cracking something.
Thanks for the thread! |
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busdaddy Samba Member
Joined: February 12, 2004 Posts: 51057 Location: Surrey B.C. Canada, but thinking of Ukraine
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Posted: Sun Mar 24, 2013 8:59 am Post subject: |
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TomWesty wrote: |
busdaddy wrote: |
That's nice looking, but at the same time complex and spendy. I like the tank adaptor, I'd use it and fabricate my own lines using AN817 or AN818 series flare nuts opposed to that union, then I could put the pump wherever I liked and it wouldn't be hanging off a fitting. (you'll need the inner collars for the 818 fittings)
[img] |
When you say pump, do you mean shutoff valve? |
Either/or, all that stuff screws together with pipe threads so they could be assembled into a unit and clamped to the body somewhere convenient, use stainless tubing and fittings for the line and it'll be as fireproof as it gets. Likely best to put the shutoff valve upstream of the pump but I'm not sure it really matters. _________________ Rust NEVER sleeps and stock never goes out of style.
Please don't PM technical questions, ask your problem in public so everyone can play along. If you think it's too stupid post it here
Stop dead photo links! Post your photos to The Samba Gallery!
Слава Україні! |
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suffecool2 Samba Member
Joined: May 15, 2011 Posts: 355 Location: chambersburg, pa
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Posted: Sun Mar 24, 2013 9:04 am Post subject: |
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Thank you for this thread, I've been trying to figure out how to make the connection at my tank with all metal. I went to all hard lines & electric fuel pump, but had to use a small chunk of fuel hose to connect the tank nipple to the hard line. _________________ '71 Hightop - rolling resto/customization in process
'87 Golf - tranny's toast, but still runs
'70 bone stock Westy - gone |
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Opossum Samba Member
Joined: February 26, 2005 Posts: 732 Location: Islets of Langerhans
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Posted: Sun Mar 24, 2013 11:37 am Post subject: |
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Parts you need:
Bought
Valve from here: http://www.afcvalves.com/mod121.html
Center AN fitting: http://www.anplumbing.com/Adapters/Aluminum-14.html
Gas tank fitting (right piece): http://www.cbperformance.com/ProductDetails.asp?ProductCode=3288
All for less than $ 100.00
When installed:
Make sure you:
Use gas rated Teflon tape or sealant on threads.
Use the bolt on top of fuel cut off solenoid to make bracket for extra support. You don't want the valve to wiggle.
Hook up solenoid to same wire that runs fuel pump. Hopefully the fuel pump is wired correctly through a relay.
I've had this on since April of 2011 and it works great and gives piece of mind. Shuts off fuel when engine is shut off and no rubber hose to rot out between valve and tank. _________________ "You can lead an aircooled to water, but you can't make it drink"
"Live and learn or crash and burn"
"It's only Cool, If it's Air-Cooled"
Virginia Whiteface (Opossum) the first VW
Camper Special Club Member
1973 Orange Westfalia Hard top, Original owner |
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suffecool2 Samba Member
Joined: May 15, 2011 Posts: 355 Location: chambersburg, pa
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Posted: Sun Mar 24, 2013 11:51 am Post subject: |
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Opossum wrote: |
Parts you need:
Bought
Valve from here: http://www.afcvalves.com/mod121.html
Center AN fitting: http://www.anplumbing.com/Adapters/Aluminum-14.html
Gas tank fitting (right piece): http://www.cbperformance.com/ProductDetails.asp?ProductCode=3288
All for less than $ 100.00
When installed:
Make sure you:
Use gas rated Teflon tape or sealant on threads.
Use the bolt on top of fuel cut off solenoid to make bracket for extra support. You don't want the valve to wiggle.
Hook up solenoid to same wire that runs fuel pump. Hopefully the fuel pump is wired correctly through a relay.
I've had this on since April of 2011 and it works great and gives piece of mind. Shuts off fuel when engine is shut off and no rubber hose to rot out between valve and tank. |
Can this setup still be used with the filter sock that goes up into the tank? _________________ '71 Hightop - rolling resto/customization in process
'87 Golf - tranny's toast, but still runs
'70 bone stock Westy - gone |
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rneithammer Samba Member
Joined: November 09, 2007 Posts: 197 Location: Media, PA, USA
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Posted: Sun Mar 24, 2013 11:56 am Post subject: |
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Thanks 'possum....that looks real simple, and simple ist best.
Good question about the filter sock. I would assume (and hope) that that stays in place.
Since my bus is a 71, it does not have an electric fuel pump. I plan to wire to the hot side of the coil for solenoid power. |
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Opossum Samba Member
Joined: February 26, 2005 Posts: 732 Location: Islets of Langerhans
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Posted: Sun Mar 24, 2013 12:13 pm Post subject: |
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Yes, filter sock is still in there.
Just unscrew your current fuel tap, screw in this setup, add support bracket for valve, and connect wiring.
Fuel tank tap piece from CB Performance includes the Viton sealing ring. _________________ "You can lead an aircooled to water, but you can't make it drink"
"Live and learn or crash and burn"
"It's only Cool, If it's Air-Cooled"
Virginia Whiteface (Opossum) the first VW
Camper Special Club Member
1973 Orange Westfalia Hard top, Original owner |
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old DKP driver Samba Member
Joined: March 30, 2005 Posts: 4145 Location: Los Gatos,Ca.
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Posted: Sun Mar 24, 2013 3:28 pm Post subject: fuel tank valve |
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OPossum,
Nice information on this shutoff valve.I will be doing this soon to my Bus
and i like that you added where to buy all that's needed too! _________________ V.W.owner since 1967 |
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rneithammer Samba Member
Joined: November 09, 2007 Posts: 197 Location: Media, PA, USA
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Posted: Sat Apr 06, 2013 12:01 pm Post subject: |
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'Possum......Gas rated teflon tape? I have not heard of that. Is that a hardware store item? |
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Wildthings Samba Member
Joined: March 13, 2005 Posts: 50261
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Posted: Sat Apr 06, 2013 12:37 pm Post subject: |
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AN fittings and tubing are essentially the same for your use as JIC fittings and tubing which are going to be available from any industrial hydraulic supply house. The hydraulic jobber may not have the special AN/VW fitting but will have everything else to go from the tank to the cutoff and then to the pump in steel line. |
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