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kingfool
Samba Member
Joined: July 04, 2006
Posts: 28
Location: Seattle
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 Posted: Sun Dec 18, 2016 3:36 pm Post subject: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Anyone know what this is? This is on my '86 Adventurewagen.
It has three electrical lines coming off of it.
The red line goes to the red/black line off the plug on the distributor.
White line is floating, and the black is grounded.[/img] |
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Terry Kay
Banned
Joined: June 22, 2003
Posts: 13331
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| Posted: Sun Dec 18, 2016 4:24 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Looks to be an incorrectly placed fuel pump of unknown origin.
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0to60in6min
Samba Member
Joined: November 27, 2006
Posts: 3416
Location: OR & CA (Oregon/California)
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| Posted: Sun Dec 18, 2016 5:08 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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a kind of gimmick to improve the fuel flow...?
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djkeev
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Joined: September 30, 2007
Posts: 32596
Location: Reading Pennsylvania
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Terry Kay
Banned
Joined: June 22, 2003
Posts: 13331
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| Posted: Sun Dec 18, 2016 5:17 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Hold on for a second.
Don't yank anything until you look under the vehicle and ascertain that you have an operational fuel pump.
You just buy this van?
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kingfool
Samba Member
Joined: July 04, 2006
Posts: 28
Location: Seattle
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| Posted: Sun Dec 18, 2016 5:27 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Yep, I have a stockish looking fuel pump in the normal location.
I've have actually had this van for a while, just overlooked that part! Guess I thought it was part of the the fuel injection system. However I realized today that it was not.
I removed it, but before I disconnected the wires I started the van to see what it sounded like and I got nothing, so it was defunct.
Maybe the previous owner's stock pump died and they slapped it in there as a quick fix?
Anyway, the van runs fine now that it's out and with a new set of fuel lines to boot. |
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50338
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| Posted: Sun Dec 18, 2016 6:29 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Being is it is in the return line it would not have been pumping fuel to the engine. I was thinking that maybe someone wanted to feed fuel to a gas heater and thought this was the way to do it. Don't know, but I'm glad you removed it. My first thought on seeing it is that it was a serious fire hazard.
You might crawl underneath and look for other hacks in the fuel system, I would suspect others to be there. |
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MarkWard
Samba Member
Joined: February 09, 2005
Posts: 17122
Location: Retired South Florida
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| Posted: Mon Dec 19, 2016 10:10 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Electromagnetic fuel molecule aligner. 25% gain in power, torque and mpg.
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?Waldo?
Samba Member
Joined: February 22, 2006
Posts: 9752
Location: Where?
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| Posted: Mon Dec 19, 2016 10:13 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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| It's a bomb. Be sure to disconnect the white wire *first*. |
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crazyvwvanman
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Joined: January 28, 2008
Posts: 9923
Location: Orbiting San Diego
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| Posted: Mon Dec 19, 2016 10:17 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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That was my take as well. Getting power from the dizzy harness isn't going to allow much pumping. Then it has the white wire coiled around the spark plug wire to get the magnetic magic involved. Plus there is that 3 position switch on the end, maybe to select your mpg improvement position 1 for 10%, 2 for 20%, or 3 for 30%?
Mark
| MarkWard wrote: |
| Electromagnetic fuel molecule aligner. 25% gain in power, torque and mpg. |
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?Waldo?
Samba Member
Joined: February 22, 2006
Posts: 9752
Location: Where?
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| Posted: Mon Dec 19, 2016 11:23 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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| Lol. Thanks for pointing out the wire wrapped around the spark plug wire. |
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Wildthings
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Joined: March 13, 2005
Posts: 50338
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| Posted: Mon Dec 19, 2016 11:25 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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| crazyvwvanman wrote: |
That was my take as well. Getting power from the dizzy harness isn't going to allow much pumping. Then it has the white wire coiled around the spark plug wire to get the magnetic magic involved. Plus there is that 3 position switch on the end, maybe to select your mpg improvement position 1 for 10%, 2 for 20%, or 3 for 30%?
Mark
| MarkWard wrote: |
| Electromagnetic fuel molecule aligner. 25% gain in power, torque and mpg. |
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Maybe you are right the electronic equivalent of a fuel line magnet. Why is it set on "2" though? Does the gas tank overfill if you set it on "3"? |
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Jake de Villiers
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Joined: October 24, 2007
Posts: 5911
Location: Tsawwassen, BC
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| Posted: Tue Dec 20, 2016 10:17 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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| Wildthings wrote: |
| crazyvwvanman wrote: |
That was my take as well. Getting power from the dizzy harness isn't going to allow much pumping. Then it has the white wire coiled around the spark plug wire to get the magnetic magic involved. Plus there is that 3 position switch on the end, maybe to select your mpg improvement position 1 for 10%, 2 for 20%, or 3 for 30%?
Mark
| MarkWard wrote: |
| Electromagnetic fuel molecule aligner. 25% gain in power, torque and mpg. |
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Maybe you are right the electronic equivalent of a fuel line magnet. Why is it set on "2" though? Does the gas tank overfill if you set it on "3"? |
Terrifying amount of power produced on "3"? 
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http://sites.google.com/site/subyjake/mydixiedarlin%27
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Abscate
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Joined: October 05, 2014
Posts: 22648
Location: NYC/Upstate/ROW
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| Posted: Tue Dec 20, 2016 11:22 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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| Andrew A. Libby wrote: |
| It's a bomb. Be sure to disconnect the white wire *first*. |
Dont listen to Andrew - cut the red wire first. Trust me.
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bluebus86
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Joined: September 02, 2010
Posts: 11075
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| Posted: Tue Dec 20, 2016 12:00 pm Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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a fire hazard that I do see is regarding the vacuum hose on the fuel pressure regulator. make sure the hose is a good high pressure hose and clamp both ends securely, note the fittings for this vacuum hose are not barbed, the ends must be clamped.
why you may ask need this vacuum hose be a high pressure fuel hose and clamped??? well if the pressure regulator diaphram ever ruptures, the high pressure fuel will be sent to the vacuum hose, if that hose fails, or blows off, the fuel will be sprayed all over, maybe on the distributor, spark kaboom! if that vacuum hose is secured and strong, the leaking fuel will be contained and sent harmlessly into the intake and stall the motor, thus shutting off the pump.
several vanagon engine fires have occured becuase of a failed diaphram and that vacuum hose blowing off or breaking. so secure that hose and make sure it is a fuel rated hose, not a flimsy vacuum hose with unclampped ends.
your vanagon with thank you for doing this by not buring if the diaphram ruptures.
good luck
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Help Prevent VW Engine Fires, see this link.....Engine safety wire information
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Butcher
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Joined: December 05, 2015
Posts: 1285
Location: Right Here
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| Posted: Wed Dec 21, 2016 9:11 am Post subject: Re: What is this Strange Cylinder off Fuel Pressure Regulator? |
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Certainly none of you people know how to cut wires.
You cut them at the same time with the same tool. Done right, you'll blow something. |
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