Notices
1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Locking Gas cap vs. Vented!?

Thread Tools
 
Search this Thread
 
Old May 30, 2004 | 11:30 AM
  #1  
ceetwarrior's Avatar
ceetwarrior
Thread Starter
|
Cargo Master
20 Year Member
Joined: Jul 2003
Posts: 2,328
Likes: 14
From: Colorado
Question Locking Gas cap vs. Vented!?

I need some info on a gas cap for my 1967 f100. In my Dennis Carpender mag it says the only correct gas cap for the 1967 is the: "Stainless Steel Gas Cap - Vented 1967-1972" And the only locking gas cap is for "1970-72". I know that the gas tanks are different from the 1967 and the 1970.

So my question is, does anyone know if I can use a non-vented locking gas cap on my 1967 or will I need to get a vented type?

Thanks!
 
Reply
Old May 30, 2004 | 03:10 PM
  #2  
Torque1st's Avatar
Torque1st
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
You can make a non-vented cap into a vented cap with a small carefully placed hole.
 
Reply
Old May 30, 2004 | 03:13 PM
  #3  
BB's Avatar
BB
Post Fiend
25 Year Member
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
You need a vented type. Be aware that the venting only goes one way, from the outside to the inside.
 
Reply
Old May 30, 2004 | 03:14 PM
  #4  
BB's Avatar
BB
Post Fiend
25 Year Member
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Originally Posted by Torque1st
You can make a non-vented cap into a vented cap with a small carefully placed hole.
or just wait for the seal to crack.

Have you tried the auto parts stores? I found a keyed-alike pair of vented Stant chrome caps with the red ring for my '68 Camper Special at Pep Boys.
 

Last edited by BB; May 30, 2004 at 03:30 PM.
Reply
Old May 30, 2004 | 04:02 PM
  #5  
ceetwarrior's Avatar
ceetwarrior
Thread Starter
|
Cargo Master
20 Year Member
Joined: Jul 2003
Posts: 2,328
Likes: 14
From: Colorado
BB, I've looked around at the parts stores but I didn't see anything about vented or non.

Why doesn't D.C. have the vented-locking? I'll try around town next.

What's the purpose of vented anyway? Besides venting, lol
 
Reply
Old May 30, 2004 | 04:13 PM
  #6  
BB's Avatar
BB
Post Fiend
25 Year Member
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
The venting is needed so when the fuel pump draws fuel out of the tank the vent allows air to go into the tank to displace the fuel that was removed. Without it, the fuel pump will draw fuel until it can't pull anymore because the tank is under a vacuum.

The non-vented caps are for use with tanks that have evaporative contols. The tank venting takes place in the evap. system.
 
Reply
Old May 30, 2004 | 04:20 PM
  #7  
ranger240's Avatar
ranger240
Elder User
Joined: Aug 2003
Posts: 693
Likes: 0
From: Tuttle, Oklahoma
so as to prevent a vacuume in the gas tank, causing a hard to run down problem of fuel starvation. I recently came across this discovery first hand. I went to see if my fuel float was stuck in the tank (guage said 1/4 tank) and when I opened the cap, a large rush of air went into the tank and then the tank made a "klunk" as it re-expanded. so in answer to your querry, yes vented caps are necessary on certain tanks.
_Ken
 
Reply
Old May 30, 2004 | 04:37 PM
  #8  
rebocardo's Avatar
rebocardo
Post Fiend
Joined: Jun 2002
Posts: 13,873
Likes: 3
From: Atlanta GA
I got the wrong cap at NAPA, I returned it, then I ordered one from MotorHaven.com and got the correct locking cap for my 1971.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-1

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-2

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-3

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-4

Every 2026 Ford Engine Explained

 Brett Foote
story-5

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-6

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-7

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-8

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-9

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
Old May 30, 2004 | 05:57 PM
  #9  
ceetwarrior's Avatar
ceetwarrior
Thread Starter
|
Cargo Master
20 Year Member
Joined: Jul 2003
Posts: 2,328
Likes: 14
From: Colorado
Thanks guys for the good info.

Sounds like my best bet is to go to the parts stores in town and see if I can find a vented, locking cap being as DC doesn't sell it.

That brings me to my next question: is there a good locking cap that doesn't have the red on it?
 
Reply
Old May 31, 2004 | 09:52 PM
  #10  
ranger240's Avatar
ranger240
Elder User
Joined: Aug 2003
Posts: 693
Likes: 0
From: Tuttle, Oklahoma
all of them, just get some paint stripper and get rid of the paint
 
Reply
Old Jun 1, 2004 | 03:14 PM
  #11  
ceetwarrior's Avatar
ceetwarrior
Thread Starter
|
Cargo Master
20 Year Member
Joined: Jul 2003
Posts: 2,328
Likes: 14
From: Colorado
Hey guys, I went to Checker Auto and bought a gas cap today. It's a vented Slant 11491 in case anyone else needs to know. I took paint stripper and laccer thinner to take off the all the red paint. Then I took a scotch pad and scuffed in circular motons to give it the brushed alum look. Looks sweet, thanks for all the help. Here ya go:

 
Reply
Old Jun 1, 2004 | 03:23 PM
  #12  
BB's Avatar
BB
Post Fiend
25 Year Member
Joined: Feb 2000
Posts: 5,130
Likes: 8
From: Brea CA
Excellent, glad you got it all worked out!

Personally I like the red ring on my caps, although they're starting to fade off by themselves.
 
Reply
Old Jun 1, 2004 | 04:01 PM
  #13  
ranger240's Avatar
ranger240
Elder User
Joined: Aug 2003
Posts: 693
Likes: 0
From: Tuttle, Oklahoma
looks great! glad you got it worked out. HAH, maybe you could start selling them on ebay. who knows you may find a few buyers!! any way, looks great.
 
Reply
Old Jun 1, 2004 | 05:46 PM
  #14  
ceetwarrior's Avatar
ceetwarrior
Thread Starter
|
Cargo Master
20 Year Member
Joined: Jul 2003
Posts: 2,328
Likes: 14
From: Colorado
Thanks BB and Ranger240.

Ranger240, that's a good idea. I'm not sure if I'll make any profit being as they are $15.99 each. But, if we see them pop up on eBay soon we'll know someone took the idea I'm proud, I think it's very custom. Just more custom fab going into my '67.
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
f100today
1967 - 1972 F-100 & Larger F-Series Trucks
110
Sep 19, 2021 11:16 AM
soulnamja
WTB - Parts & other
2
Dec 13, 2016 02:32 PM
flattie39
Ranchero & 1961 - 1967 Econoline
4
Aug 29, 2016 08:03 AM
Uni Moe
1967 - 1972 F-100 & Larger F-Series Trucks
5
Oct 3, 2015 07:45 PM
jaye
1948 - 1956 F1, F100 & Larger F-Series Trucks
9
Jul 8, 2006 07:12 PM




All times are GMT -5. The time now is 03:54 PM.

story-0
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-1
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-2
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-3
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-4
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-5
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-6
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-7
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-8
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-9
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE