Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)
Sign in using an external account
Register Forgot Password?


Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 07-28-2013, 09:39 AM
retro48/52's Avatar
retro48/52 retro48/52 is offline
Senior User
 
Join Date: Nov 2007
Location: Denver, CO
Posts: 203
retro48/52 is starting off with a positive reputation.
Fuel pump or Vapor lock??????

Hello, I have a 429 cid in a 52 F1 and having trouble I can't understand. After about 20 minutes of driving, the engine seems to get hotter than normal then the engine stops. I thought it could be vapor lock cause the temp on my temp gauge goes to 220 and when I stepped on the gas to climb a hill, that is when the engine gasps for fuel and stops. But, I open the hood and look at my fuel pressure gauge which is in the fuel line, it reads ZERO pressure. The fuel pressure gauge is mounted to the firewall above the steering column. Normally it reads 5-6 pounds in the garage. Can someone tell me if vapor lock would make the fuel pressure gauge shows ZERO, or does that mean I have no pressure from my electric fuel pump residing in the back mounted to the frame? After the engine cools down for 3-5 minutes I can start the engine and if I don't floor the gas pedal, at least get it home to scratch my head again and ask this forum for help. My fuel line from the carb to the fuel pressure gauge is already insulated from heat, (I think, at least it is covered with 2000 deg. insulation) .
__________________
__________________
Dennis
1952 F-1 429 C6 9"
1970 Cuda 440 A/T
1973 Roadrunner 400 4 sp
1988 Crown Vic cruser
Reply With Quote
  #2  
Old 07-29-2013, 05:25 AM
mrford49 mrford49 is offline
Junior User
 
Join Date: Jan 2005
Location: Wilmington/Custer Park IL
Posts: 96
mrford49 is starting off with a positive reputation.
Normaly you have that problem with a stock type mechanical fuel pump. Install a return fuel line on your truck much smaller than your fuel line as it will cool your fuel down a lot. 1/8'' copper line will work just fine but make sure you have enough fuel pressure and volume. Sometimes you may have to restrict the fuels return. They sell fuel filters with a return port already on them try one of those first before custom making one. Mopar's had them as well as other makers. Cooling the fuel up to the carb will help you big time. Been there done that!
Reply With Quote
  #3  
Old 07-29-2013, 09:33 AM
retro48/52's Avatar
retro48/52 retro48/52 is offline
Senior User
 
Join Date: Nov 2007
Location: Denver, CO
Posts: 203
retro48/52 is starting off with a positive reputation.
Thanks for the response. I sure will try that.
__________________
Dennis
1952 F-1 429 C6 9"
1970 Cuda 440 A/T
1973 Roadrunner 400 4 sp
1988 Crown Vic cruser
Reply With Quote
Old 07-29-2013, 09:33 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Performance, Engines & Troubleshooting > Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460)

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
'67 F600 Fuel Starvation Problem...I think dbreienrk1 Large Truck 18 08-06-2014 08:41 PM
Vapor lock and fuel pressure gauge retro48/52 1948 - 1956 F1, F100 & Larger F-Series Trucks 10 07-30-2013 09:58 PM
Vapor Lock? B Todd 1948 - 1956 F1, F100 & Larger F-Series Trucks 29 06-11-2013 05:54 PM
Vapor Lock - How do I prevent it? elkhunter 1973 - 1979 F-100 & Larger F-Series Trucks 14 08-03-2012 09:07 AM
460 4bbl - severe loss of power DBAPilotDad 1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks 31 06-24-2008 09:14 PM



All times are GMT -5. The time now is 02:50 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - 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