Current Classifieds

Mustang ll/Pinto/Bobcat Aluminum Wheel Rim

Date: 07/20/2018 03:00 pm
Automatic transmission
Date: 02/13/2021 02:52 pm
1980 Pinto-Shay for sale

Date: 07/07/2016 01:21 pm
1977 Pinto for parts

Date: 10/10/2018 06:25 pm
95 2.3l short block
Date: 03/18/2017 04:54 pm
Wanted early pinto
Date: 10/03/2019 02:42 pm
Front grill for '72
Date: 03/02/2022 12:09 pm
INTERIOR DELUX ARM RESTS - 2 PAIR

Date: 03/23/2018 09:23 pm
78 fender and hood
Date: 03/23/2021 01:07 pm
Mallory Unilight dist 2.0
Date: 10/25/2019 03:44 pm
Rally spoiler wanted
Date: 05/04/2017 01:32 pm
Pinto drive train

Date: 06/29/2018 08:32 am

Author Topic: fuel return line  (Read 1321 times)

0 Members and 1 Guest are viewing this topic.

Offline ldj1002

  • Pinto Member
  • **
  • Posts: 13
  • FeedBack: +0/-0
  • Another Pinto Driver

  • Total Badges: 1
    Badges: (View All)
    Topic Starter
fuel return line
« on: November 06, 2017, 10:34:58 PM »
I have a MG replica with Pinto drive train. It is 2.3 engine. I am having trouble filling gas tank without it puking gas out the filler neck. I'm thinking I need vent in tank beside the one in filler neck. Can I plug return line and run without it? That way I can use that fitting in tank and line for vent.

Offline Pintosopher

  • 33yrs SCCA, 19yrs Egroups/PCCA ,40yrs enlightenment
  • PCCA Charter Member
  • Pinto Master
  • *
  • Posts: 1997
  • FeedBack: +383/-1
  • Gender: Male
  • Essses my Nirvana , Liberty to play, my mission

  • Total Badges: 8
    Badges: (View All)
    Topic Starter Signature Poll Voter 1000 Posts Windows User Tenth year Anniversary Fifth year Anniversary Photographer
Re: fuel return line
« Reply #1 on: November 07, 2017, 05:03:29 AM »
Does your replica use the Pinto Evap system? Is there a Charcoal canister and line to the fuel tank? Usually this problem is a result if the tank being over filled and eventually overwhelming the vent line with liquid fuel which in turn causes the charcoal canister to saturate and prevent proper venting. Also check the entire vent line for kinks and hoses collapsed. The canister may have gone bad and needs replacement or renewal (Activated charcoal replaced, it doesn't last forever). The vapors during refueling have to go somewhere, and if the pump nozzle isn't pulling them out fast enough, you get the kickback overflow with the ethanol added fuels. It's also possible the tank vapor separator is plugged.
 I still haven't solved this problem with my 84 Vw GTI, and I've been through the whole system.

Pintosopher ,  always venting but seeking solutions
Yes, it is possible to study and become a master of Pintosophy.. Not a religion , nothing less than a life quest for non conformity and rational thought. What Horse did you ride in on?

Check my Pinto Poems out...

Offline ldj1002

  • Pinto Member
  • **
  • Posts: 13
  • FeedBack: +0/-0
  • Another Pinto Driver

  • Total Badges: 1
    Badges: (View All)
    Topic Starter
Re: fuel return line
« Reply #2 on: November 07, 2017, 08:26:28 AM »
Does your replica use the Pinto Evap system? Is there a Charcoal canister and line to the fuel tank? Usually this problem is a result if the tank being over filled and eventually overwhelming the vent line with liquid fuel which in turn causes the charcoal canister to saturate and prevent proper venting. Also check the entire vent line for kinks and hoses collapsed. The canister may have gone bad and needs replacement or renewal (Activated charcoal replaced, it doesn't last forever). The vapors during refueling have to go somewhere, and if the pump nozzle isn't pulling them out fast enough, you get the kickback overflow with the ethanol added fuels. It's also possible the tank vapor separator is plugged.
 I still haven't solved this problem with my 84 Vw GTI, and I've been through the whole system.

Pintosopher ,  always venting but seeking solutions

The Pinto evap system is not used. The fuel tank is custom made and has 2 fittings on the tank plus the filler neck. One is to fuel pump and one is return. It also has a fitting on the filler neck that has a line running and running to a T in the return line. I don't think this would make a vent.

Offline Pintosopher

  • 33yrs SCCA, 19yrs Egroups/PCCA ,40yrs enlightenment
  • PCCA Charter Member
  • Pinto Master
  • *
  • Posts: 1997
  • FeedBack: +383/-1
  • Gender: Male
  • Essses my Nirvana , Liberty to play, my mission

  • Total Badges: 8
    Badges: (View All)
    Topic Starter Signature Poll Voter 1000 Posts Windows User Tenth year Anniversary Fifth year Anniversary Photographer
Re: fuel return line
« Reply #3 on: November 07, 2017, 10:18:29 AM »
Based on your description and the image, your system relies on a vented fuel cap. There is no separation of venting while the return line is full of fuel , hence the Station fuel nozzle ( if it has vapor capture suction pump bellows) is the only route for filling vapor to escape . If the pump is dispensing at full volume, you can literally pressurize the tank beyond the bellows capture suction and then it will blow everywhere when you pull the nozzle (or before :P) Consider adding a check valve vapor vent to the tank.
Yes, it is possible to study and become a master of Pintosophy.. Not a religion , nothing less than a life quest for non conformity and rational thought. What Horse did you ride in on?

Check my Pinto Poems out...

Offline dick1172762

  • Vintage Pinto Racer
  • PCCA Management Board
  • Pinto Sr. Master
  • ******
  • Posts: 2623
  • FeedBack: +362/-0
  • Gender: Male
  • I'm a llama!

  • Total Badges: 7
    Badges: (View All)
    Topic Starter Signature Poll Voter Windows User 1000 Posts Tenth year Anniversary Fifth year Anniversary
Re: fuel return line
« Reply #4 on: November 07, 2017, 12:27:51 PM »
People you are not reading the original post!!!! He says he can not fill up the gas tank. That's all.
Its better to be a has-been, than a never was.

Offline Pintosopher

  • 33yrs SCCA, 19yrs Egroups/PCCA ,40yrs enlightenment
  • PCCA Charter Member
  • Pinto Master
  • *
  • Posts: 1997
  • FeedBack: +383/-1
  • Gender: Male
  • Essses my Nirvana , Liberty to play, my mission

  • Total Badges: 8
    Badges: (View All)
    Topic Starter Signature Poll Voter 1000 Posts Windows User Tenth year Anniversary Fifth year Anniversary Photographer
Re: fuel return line
« Reply #5 on: November 07, 2017, 03:38:33 PM »
People you are not reading the original post!!!! He says he can not fill up the gas tank. That's all.
Dick, PM me on this if I wasn't clear, Thanks
Yes, it is possible to study and become a master of Pintosophy.. Not a religion , nothing less than a life quest for non conformity and rational thought. What Horse did you ride in on?

Check my Pinto Poems out...

Offline dick1172762

  • Vintage Pinto Racer
  • PCCA Management Board
  • Pinto Sr. Master
  • ******
  • Posts: 2623
  • FeedBack: +362/-0
  • Gender: Male
  • I'm a llama!

  • Total Badges: 7
    Badges: (View All)
    Topic Starter Signature Poll Voter Windows User 1000 Posts Tenth year Anniversary Fifth year Anniversary
Re: fuel return line
« Reply #6 on: November 07, 2017, 04:07:59 PM »
I read it over and now I understand fully. Sorry about the mix up.
Its better to be a has-been, than a never was.