Gas Cap gasket

J

JJHstang

5 Year Member

Sep 12, 2018

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Fort Worth, TX

Aug 6, 2022

#1

• Aug 6, 2022

• #1

I have looked on line but haven’t found a gas cap replacement for my 71 Mach 1.
It is the flip open type attached pics.
Any ideas?

 

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horse sence

15 Year Member

Nov 29, 1999

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Wile Coyote's stunt double

Aug 6, 2022

#2

• Aug 6, 2022

• #2

I made one for a 69 pop open cap out of a sheet of cork gasket material and glued it to the cap and it worked great ,i used a compass to make the inner circle and a outer circle and cut it out with an exacto knife

 

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J

JJHstang

5 Year Member

Sep 12, 2018

222

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Fort Worth, TX

Aug 6, 2022

#3

• Aug 6, 2022

• #3

Thank you, good idea. Some mentioned using rubber but have to make sure it is gas and oil resistant.

 

horse sence

15 Year Member

Nov 29, 1999

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Wile Coyote's stunt double

Aug 6, 2022

#4

• Aug 6, 2022

• #4

The gasket material is oil and gas resistant ,it held up for years

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

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Fort Worth, TX

Aug 13, 2022

#5

• Aug 13, 2022

• #5

horse sence said:

I made one for a 69 pop open cap out of a sheet of cork gasket material and glued it to the cap and it worked great ,i used a compass to make the inner circle and a outer circle and cut it out with an exacto knife

Click to expand...

What thickness was the cork gasket material.

 

horse sence

15 Year Member

Nov 29, 1999

12,194

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Wile Coyote's stunt double

Aug 13, 2022

#6

• Aug 13, 2022

• #6

I will have to see if i still have some of the cork gasket left

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

14

18

Fort Worth, TX

Aug 13, 2022

#7

• Aug 13, 2022

• #7

horse sence said:

I will have to see if i still have some of the cork gasket left

Click to expand...

Thank you

 

horse sence

15 Year Member

Nov 29, 1999

12,194

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Wile Coyote's stunt double

Aug 16, 2022

#8

• Aug 16, 2022

• #8

I cant find the cork material i used ,i think i used it on my sand blaster but i think it is 1/8 thick

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

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Fort Worth, TX

Aug 17, 2022

#9

• Aug 17, 2022

• #9

Thank you

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

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18

Fort Worth, TX

Oct 28, 2023

#10

• Oct 28, 2023

• #10

I have posted similar post regarding gasket replacement.
The gasket on my 1971 Mach1 pop open gas cap is cracked and flattened. Believe it is the original.
I have finally decided as suggested in previous post to buy a piece of Nitrite rubber or cork and try and make my own.

What is the thickness I should buy? Can’t measure the gasket on the cap and if I try to take off it will break up.

 

Mcmahst

5 Year Member

Jan 19, 2021

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Laguna Woods CA, fort Mohave AZ

Nov 17, 2023

#11

• Nov 17, 2023

• #11

You might ask the question on 7173mustangs.com, just a thought.

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

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Nov 18, 2023

#12

• Nov 18, 2023

• #12

Give it a shot with whatever you got lying around. The production tolerances in 1971 were not all that critical. If you cut out some gasket material and it doesn't seat correctly just move to another material.

Here's a short-cut:

9030F - 1971-73 Mustang; Vented Gas Cap; With Retaining Cable; Running Horse Emblem

A superb reproduction of the standard 1971-73 Mustang vented gas cap including the running Horse emblem facing right. Manufactured to exact specifications and features a high quality chrome finish with black face and chrome trim.

www.classicindustries.com

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

42,941

21,125

234

Box behind Walmart

Nov 18, 2023

#13

• Nov 18, 2023

• #13

This one is more similar to yours:

9030B - Aluminum Flip Top Fuel Cap; Universal

Universal flip top aluminum gas cap for custom applications. Made with polished aluminum components and assembled with brass hardware. Perfect for relocating your gas tank filler or making a Shelby Cobra or Eleanor tribute.

www.classicindustries.com

 

J

JJHstang

5 Year Member

Sep 12, 2018

222

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18

Fort Worth, TX

Dec 4, 2023

#14

• Dec 4, 2023

• #14

I decided to make my own. I found 3/32” thick neoprene 12” x 12” sheet on Amazon for less than $5. My existing gasket measured 3/32” using a multimeter. Found that the diameter of a can of soup is just slightly larger than 2.5”. I marked it on the sheet of rubber and cut it using a exacto knife. Then found a socket that was an inch diameter used it for measuring and cutting the center hole. Not perfect but it seals very well. I stretched the rubber around the center and with a thin flathead screwdriver push under the lip.
I have attached a few pictures and below is the link to Amazon.

Amazon product ASIN B084FYWH1R

 

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