Dual fuel LPG/gasoline schematic? - Ford Truck Enthusiasts Forums
 

Go Back   Ford Truck Enthusiasts Forums > Misc. > Alternative Fuels, Hybrids & Mileage
Log In 


Dual fuel LPG/gasoline schematic?

Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 05-16-2011, 10:41 PM
Aussie_F_trucker's Avatar
Aussie_F_trucker Aussie_F_trucker is offline
Elder User
 
Join Date: Feb 2010
Location: Perth, western australia
Posts: 557
Aussie_F_trucker is starting off with a positive reputation.
Dual fuel LPG/gasoline schematic?

Hey folks,
I have a 1977 f100 4x4 shortbed running a dedicated,LPG system. There is no gasoline running through any part of the truck, but when I bought it, it came with a massive custom feul tank and a holley four barrel carb so I could convert it back.
The LPG is in two tanks sitting in the bed of the truck with solenoids to switch between them.

How would I go about wiring the solenoids and switches etc so my feul options are "big lpg tank", "little lpg tank" and "gasoline"?

also worth mentioning is that currently the motor is fitted with a gas vapouriser throttlebody.
Reply With Quote
  #2  
Old 05-18-2011, 01:23 PM
gasman6674's Avatar
gasman6674 gasman6674 is offline
Posting Guru
 
Join Date: Apr 2002
Location: Greenwood In. USA
Posts: 1,049
gasman6674 is gaining momentum as a positive member of FTE.
G,day Most of the time there is a check valve between the tanks in the common hose to prevent the big tank for overfilling the little tank, I have not had a lot of luck with solinoids as they use upstream pressure (tank) to hold them closed so generally if the little tank was empty the big tanks pressure would want to blow thru the solinoid to the little tank. Ok the the way I would hook it up is to wire the LP to one side of a 3-way switch (on-off-on) and the gasoline lock off or fuel pump(relay) to the other using the existing power circuit to the center terminal to power either system. Then if you want to control the big/little tanks separately you would need another 3-way or your existing set up in that circuit leg. You will need a mixer to put on top of your holly instead of your staight LP carb. You might check your distributor spark curve to make use it has not been changed to an all LP curve
Regards
__________________
Jim England
Do you have Gas?
2015 F350 6.2L RWD CCLB 4.30 Dually Vermilion Red
2015 Explorer XLT Tuxedo Black FWD, 2012 Ridgeline by Yellowstone Fifth Wheel, (For Sale 1996 F350 7.3L CCLB DRW)
Reply With Quote
  #3  
Old 05-19-2011, 02:48 AM
Aussie_F_trucker's Avatar
Aussie_F_trucker Aussie_F_trucker is offline
Elder User
 
Join Date: Feb 2010
Location: Perth, western australia
Posts: 557
Aussie_F_trucker is starting off with a positive reputation.
Thanks for your reply mate.
Theres two solenoids, one on each tank (manchester/apa style tanks) and each has its own filler valve, and the hoses that go to the engine meet up in a T fitting. Would I still do the same? Is a wiring/hose diagram available?

I know im not meant to.be playing with lpg systems because Im not qualified but bugger the law LOL
Reply With Quote
  #4  
Old 05-19-2011, 03:00 PM
gasman6674's Avatar
gasman6674 gasman6674 is offline
Posting Guru
 
Join Date: Apr 2002
Location: Greenwood In. USA
Posts: 1,049
gasman6674 is gaining momentum as a positive member of FTE.
Yes just interupt the power to those solinoids when you want to shut down the lp.
Any way you could email me some pic's of the system from the tanks to the engine?
I might be able to cobble a rough drawing up, but I am not known for my artistic talents =)

jengland@gasequipment.com

regards
__________________
Jim England
Do you have Gas?
2015 F350 6.2L RWD CCLB 4.30 Dually Vermilion Red
2015 Explorer XLT Tuxedo Black FWD, 2012 Ridgeline by Yellowstone Fifth Wheel, (For Sale 1996 F350 7.3L CCLB DRW)
Reply With Quote
  #5  
Old 06-05-2011, 08:51 PM
Aussie_F_trucker's Avatar
Aussie_F_trucker Aussie_F_trucker is offline
Elder User
 
Join Date: Feb 2010
Location: Perth, western australia
Posts: 557
Aussie_F_trucker is starting off with a positive reputation.
Yep, shouldnt.be a problem, you cant really see much but I should be able to get a few shots.
Reply With Quote
  #6  
Old 01-13-2012, 11:39 PM
monckywrench monckywrench is offline
Posting Guru
 
Join Date: Apr 2001
Posts: 2,097
monckywrench is a splendid one to beholdmonckywrench is a splendid one to beholdmonckywrench is a splendid one to beholdmonckywrench is a splendid one to beholdmonckywrench is a splendid one to beholdmonckywrench is a splendid one to beholdmonckywrench is a splendid one to behold
http://www.pngtechnologies.com/PDF_F..._Schematic.pdf

This gives a basic layout you can edit to suit your setup.
Reply With Quote
 
 
 
Reply


Similar Threads
Thread Thread Starter Forum Replies Last Post
LPG tanks Rusty_Old_F250 Alternative Fuels, Hybrids & Mileage 1 05-10-2011 05:25 PM
replacing f150 fuel tanks with lpg tanks FireBlue 1987 - 1996 F150 & Larger F-Series Trucks 2 12-20-2009 06:51 PM
My Flathead runs with LPG TheGerman Flathead V8 & Flathead 6 3 07-31-2008 11:39 AM
LPG Conversions Plough Fuel Injection, Carburetion & Fuel System 4 04-16-2004 11:16 PM
Impco LP Gas penn 1967 - 1972 F-100 & Larger F-Series Trucks 4 08-23-2003 03:49 PM


Go Back   Ford Truck Enthusiasts Forums > Misc. > Alternative Fuels, Hybrids & Mileage

Tags
96, car, dual, f150, ford, fuel, gas, lpg, perth, schematic, switch, tank, tanks, trucks, wa

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump



All times are GMT -5. The time now is 06:20 PM.

 

Powered by vBulletin® Version 3.8.7 AC2
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Terms of Service - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup