Current Classifieds

Looking for 1.6 exhaust manifold heat shield, front license plate bracket
Date: 11/04/2018 02:34 am
Beautiful 1980 Pinto

Date: 04/13/2020 11:53 am
1976 Ford Pinto Wagon - just rebuilt. 302 v8

Date: 11/11/2019 03:38 pm
KYB shocks

Date: 02/08/2017 07:09 pm
Pinto in Maine for sail...solid body

Date: 03/07/2017 07:03 pm
Radiator
Date: 05/27/2018 06:07 am
parting out 1975 & 80 pintos
Date: 08/24/2018 02:50 pm
Rear brake shoes

Date: 01/23/2017 05:01 pm
Accelerator Pump Diaphram for 1978 Pinto
Date: 09/03/2018 08:58 am
Pinto Wagon
Date: 05/25/2018 01:50 pm
Clutch Cable Needed
Date: 04/03/2017 11:03 pm
6.6.75 carrier
Date: 02/14/2018 06:47 am

« previous next »
Pages: [1]   Go Down

Author Topic: Fuel pump questions on a 1980 with a 2.3L  (Read 1242 times)

0 Members and 1 Guest are viewing this topic.

Offline Pinto5.0

  • Pinto Master
  • *****
  • Posts: 1974
  • FeedBack: +77/-0
  • Gender: Male
  • 80 hatch, 76 Wagon, 72 & 73 Sedans, 71 half hatch

    • Total Badges: 7
    Badges: (View All)
    Topic Starter Signature Poll Voter Mobile User Fifth year Anniversary Windows User 1000 Posts
Fuel pump questions on a 1980 with a 2.3L
« on: July 15, 2012, 11:15:52 PM »
My '80 has 3 lines running from the fuel tank. 2 of those go to the fuel pump & the smallest one(1/4" I think) goes to the vapor cannister.
 
The 3/8" line is the fuel feed from the tank to the pump. Is that smaller 5/16" line running from the pump back to the tank a fuel return line or some kind of vent?
 
 
Logged
'73 Sedan (I'll get to it)
'76 Wagon driver
'80 hatch(Restoring to be my son's 1st car)~Callisto
'71 half hatch (bucket list Pinto)~Ghost
'72 sedan 5.0/T5~Lemon Squeeze

Offline D.R.Ball

  • Pinto Sr. Member
  • ****
  • Posts: 558
  • FeedBack: +36/-2
  • Gender: Male

    • Total Badges: 5
    Badges: (View All)
    Topic Starter Tenth year Anniversary Poll Voter Windows User Fifth year Anniversary
Re: Fuel pump questions on a 1980 with a 2.3L
« Reply #1 on: July 16, 2012, 12:49:26 PM »
Yes it should be the return line.
Logged

Offline Pinto5.0

  • Pinto Master
  • *****
  • Posts: 1974
  • FeedBack: +77/-0
  • Gender: Male
  • 80 hatch, 76 Wagon, 72 & 73 Sedans, 71 half hatch

    • Total Badges: 7
    Badges: (View All)
    Topic Starter Signature Poll Voter Mobile User Fifth year Anniversary Windows User 1000 Posts
Re: Fuel pump questions on a 1980 with a 2.3L
« Reply #2 on: July 16, 2012, 04:17:07 PM »
So there's an internal pressure bypass inside that fuel pump? What was the reasoning? Did it prevent vapor lock or solve a flooding problem? I'm not running the stock '80 carb anyhow, it's getting replaced by a new Holley 350.
 
I wonder if I should change to an earlier pump that simply supplies fuel & eliminate the return. I was planning to move the vapor cannister to the rear & shorten the line up anyhow so I can remove the return while I'm at it. 
Logged
'73 Sedan (I'll get to it)
'76 Wagon driver
'80 hatch(Restoring to be my son's 1st car)~Callisto
'71 half hatch (bucket list Pinto)~Ghost
'72 sedan 5.0/T5~Lemon Squeeze

Offline lugnut

  • Pinto Full Member
  • ***
  • Posts: 176
  • FeedBack: +14/-1
  • Gender: Male

    • Total Badges: 5
    Badges: (View All)
    Topic Starter Tenth year Anniversary Poll Voter Windows User Fifth year Anniversary
Re: Fuel pump questions on a 1980 with a 2.3L
« Reply #3 on: July 16, 2012, 08:16:50 PM »
The return line is there to re-circulate a portion of the fuel back to the tank to cool it and also to send any bubbles back to the tank. Probably to prevent vapor lock.  Possibly there is some emissions reason too, being the late '70s !
Logged
Pages: [1]   Go Up
« previous next »