-71 Torino GT cold start issue
Printed From: The Ford Torino Page
Category: Model Specific Forum
Forum Name: 1970-1971 Ford and Mercury
Forum Description: Technical discussion for 1970-1971 Ford and Mercury
URL: https://forum.grantorinosport.org/forum_posts.asp?TID=14950
Printed Date: 26-March-2026 at 6:34PM
Software Version: Web Wiz Forums 12.06 - https://www.webwizforums.com
Topic: -71 Torino GT cold start issue
Posted By: Paskanakki-Jack
Subject: -71 Torino GT cold start issue
Date Posted: 09-April-2016 at 10:05PM
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Hello everyone! A proud new owner of a 71 Torino GT saying hi! I've purchased my first Ford only two days ago and I couldn't be happier. As far as I know there isn't another convertible like mine in my country, so I'm especially proud of my car! Haha! But I do have a slight problem with the carburetor when starting the car cold. What I can tell is that the carb seems to go bone dry after I've turned the engine off. A splash of gas straight to the carburetor, and it starts right off. I'm not sure what causes this, and I was hoping someone here might know what's going on. Thanks! - Simo
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Replies:
Posted By: Regul8r 2
Date Posted: 21-April-2016 at 7:44AM
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WELCOME to the Family ------------- Carl, Member/Admin since 07. Still the same admin/moderator REGUL8R just needed a 2nd account for more picture space. Owner- www.CaNDeCustoms.com |
Posted By: Dan the ranchero man
Date Posted: 21-April-2016 at 1:20PM
| The gas is leaking back down to the tank. The fuel pump should have a check valve that prevents this but they don't (as you can see) always work. My two do this as well I have just learn to live with it as I will be going with fuel injection soon. |
Posted By: californiajohnny
Date Posted: 21-April-2016 at 3:36PM
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welcome! very possible what dan said, but thinking about the check valve... if it were bad wouldn't the diaphram when pumping just cause the gas to serge in the line from the tank and not be able to be pumped up to the carb??? how long sitting does it dry up? the same day? or if it's been sitting for weeks or more? mine is dry if it sits for a couple of weeks or more. ------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Dan the ranchero man
Date Posted: 22-April-2016 at 2:15AM
| He said a day and it's dry. The engine rpm's could overcome a pretty leaky check valve. Mine take about a week. then I have to crank for a few seconds then pump then crank again then they start right up. |
Posted By: Big Bird
Date Posted: 22-April-2016 at 9:40AM
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I remember having to seal some plugs in fuel bowls with epoxy... Mighta been Quadrajets, maybe Holleys, don't remember, just that it caused the same problem... what carb is involved? ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: californiajohnny
Date Posted: 22-April-2016 at 2:41PM
------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Dan the ranchero man wrote:Posted By: Dan the ranchero man
Date Posted: 23-April-2016 at 2:10AM
| Stock Fuel pumps are cheap. He could start there and also a carb rebuild kit. Replacing the needle seat assembly would help that issue as well. (OOPS sorry I didn't notice that he was overseas) He could still order a pump from http://www.rockauto.com" rel="nofollow - www.rockauto.com hopefully the shipping would not be to bad. |
Posted By: Paskanakki-Jack
Date Posted: 30-April-2016 at 1:34AM
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Hey everyone and thanks for your replies. The carb is a motorcraft D5DE VA, which is a stock carburetor if I'm not mistaken. -Simo
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Posted By: Dan the ranchero man
Date Posted: 30-April-2016 at 4:10AM
| It is a stock Carb, But The D5 in the part number is telling me that it is off of a 1975. Your being a 71 should have read D0 or D1. Not that it would be a major issue just thought you would want to know. I am guessing the carb has been replaced at least once in that cars life. |
Posted By: Paskanakki-Jack
Date Posted: 04-May-2016 at 1:38PM
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Hello again! So this is where I am with the cold start issue at the moment: I CAN get the car to start without the hassle of pouring gas straight to the carburetor, but it takes a loooong time and a I need to pump the accelerator about a hundred thousand times before it starts. The acceleration pump works ok, I actually see it pumping gas just fine.But a faulty fuel pump perhaps? Any ideas where to go from here? And as always, any help is greatly appreciated! -Simo
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Posted By: californiajohnny
Date Posted: 04-May-2016 at 1:49PM
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i'm not a 100% but sure sounds like a leaking check valve in the pump???
------------- JOHN 74 GRAN TORINO S&H CLONE 74 VETTE CUSTOM 90 S10 BLAZER 4X4 LIFTED 77 CELICA CUSTOM 75 V8 MONZA SUPERCHARGED 79 COURIER VERT. SLAMMED 75 VEGA V6 5 SPD 70 CHEV C10 P/U 68 MUSTANG FB CONVERSION |
Posted By: Big Bird
Date Posted: 05-May-2016 at 1:55PM
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pinhole in the gas line? Kinda hard to diagnose remotely... ------------- "What we do in full frontal view, is more honest than your cleaned-up mind." Randy 1979 T-Bird 2005 F-150 STX RCSB 4.6, 3.55 LSD How the Heck does a REGULAR CAB SHORTBED weigh over 5200 pounds? |
Posted By: Paskanakki-Jack
Date Posted: 11-May-2017 at 2:35AM
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Hey everyone! Sorry it took me forever to reply but I got the issue solved. I installed a separate check-valve on the fuel line right before it connects to the carb. I also changed my fuel pump earlier since I thought the pump might be causing the problem which it wasn't after all. In hindsight I should've tried the separate check-valve first... But now I have a spare fuel pump in case I ever need one! Anyway! Thanks for your help guys! -Simo
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