Fuel tank venting problems... - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum

Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
lost password?   |   register now

LinkBack Thread Tools
  #1 (permalink)  
Old 03-03-2006, 12:04 PM
Registered User
Join Date: Mar 2006
Location: Hernando area, Florida
Posts: 2
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Fuel tank venting problems...

Hi all,

I am a little worried on my tank vent/overflow system...

1. When I am filling up if I do not listen closely it over fills and comes out the vent (which I guess is ok...hmmm)

2. After filling up when I take off the fuel also comes out the vent/overflow and does this for a few miles until the engines used up some of the fuel in the tank.

3. If I ever rolled the car the fuel would drain constantly out of the vent/overflow...

Just wondering what I need (check valve or something on the vent tube?) I drew a half ***** diagram of my system and attached it.

Any help would be greatly appreciated,

Reply With Quote Quick reply to this message
Sponsored Links
  #2 (permalink)  
Old 03-03-2006, 01:35 PM
Registered User
Join Date: Nov 2005
Location: NC
Posts: 154
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
You might need to move the vent hose up to the level of the filler cap. From your picture I see you have an unconventional setup, so venting next to the filler cap may be out of the question. The only real solution is to make the vent line higher than the filler neck. Can you route the vent line up to the filler neck (or higher) and then back out the bottom?

I know on later model OE gas tanks, the vapor vent is part of the pickup assembly, and won't allow liquid to come out the vent line.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools

Posting Rules
You may post new threads
You may 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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Fuel Problems??? g.b. Engine 0 07-12-2005 07:31 PM
fuel tank opinions guba_unus General Rodding Tech 4 01-05-2005 10:09 PM
Fuel Tank Vapor line DoubleVision Engine 1 03-17-2004 04:47 AM
34 Ford fuel tank question 302 Z28 General Rodding Tech 1 02-01-2004 04:55 PM
Fuel Tank questions Bluepen Engine 6 12-04-2003 05:58 AM

All times are GMT -6. The time now is 03:37 AM.

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.