Gas cap question

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Sep 6, 2004 | 11:42 PM

FEDX

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Melting Slicks

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From: A high school diploma fixing what a college degree broke TN

St. Jude Donor '03 thru '26

Gas cap question

Are there any differences in the gas caps between the C3s?I wouldnt think so,but thought I'd ask before I buy.Thanks

Sep 6, 2004 | 11:48 PM

rtpilot

Pro

Joined: Jul 2004

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From: Media PA

Have one for 35 years. Replaced cap 3 times for rust. All were the same. Never had a problem about any different styles

Sep 7, 2004 | 12:16 AM

griffths

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From: Long Grove, IL

Quote:

Originally Posted by FEDX

Are there any differences in the gas caps between the C3s?I wouldnt think so,but thought I'd ask before I buy.Thanks

68 and 69 C3's used vented gas caps, 1970 through 1974 used unvented caps and in 75-? the gas caps were the screw on type. The date ranges may not be totally correct except for the 68 and 69's.

Jay

Sep 7, 2004 | 12:17 AM

glen242

Melting Slicks

Joined: Apr 1999

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From: Moon Twp. PA USA

Quote:

Originally Posted by FEDX

Are there any differences in the gas caps between the C3s?I wouldnt think so,but thought I'd ask before I buy.Thanks

I believe the earlier ones, without emissions, used a vented to atmosphere cap, while the later ones used a sealed cap and vented to a charcoal canister.

Sep 7, 2004 | 09:01 PM

FEDX

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Melting Slicks

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From: A high school diploma fixing what a college degree broke TN

St. Jude Donor '03 thru '26

In light of this information,it seems a 77 would fit a 78 correctly? or not? Thanks for the replys

Sep 7, 2004 | 09:22 PM

superfine69

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From: Oh Lord, Stuck in Lodi again.

Quote:

Originally Posted by griffths

68 and 69 C3's used vented gas caps, 1970 through 1974 used unvented caps and in 75-? the gas caps were the screw on type. The date ranges may not be totally correct except for the 68 and 69's.

Jay

I read once that the caps that say "vented" on them actually are un-vented, and are meant to be used on a vented tank.