C3 Vette Registry - The Best Resource on the Net for C3 Vettes! C3 Vette
Forums -> C3 General Discussion
Not Logged In! Login or Register!  Users Online: 15 / Help 
Features  Find C3 Parts on ebay in only 2 or 3 clicks!  | Add YOUR C3 to the Registry

Supporting Vendors
VetteBookStore.com
Volunteer Vette Products
Bair's Corvettes
Mid America Motorworks
CorvetteClothing.com

C3 of the Month
None Current
Enter Yours Today!
Online C3 Show
13
C3s are Registered

Vanity Plates
VETSMTH
VetteSmith
Featured Links

Buy Now
Corvette 50th Anniversary
Corvette 50th Anniversary


Collector's Originality Guide Corvette 1968-1982 (Paperback)
Collector's Originality Guide Corvette 1968-1982 (Paperback)


Corvette: America's Sports Car Yesterday, Today, Tomorrow (Hardcover)
Corvette: America's Sports Car Yesterday, Today, Tomorrow (Hardcover)


Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001
Corvette Fuel Injection & Electronic Engine Control: 1982 through 2001



| Hide Signatures and Profile Pics

 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
12/2/12 2:21pm - Original Message: 'C3 Gas Caps Question!'
Ed's71Corvette
Former Member
- Send Private Message



Vette(s):
1971 Corvette Stingray - 350 cu - Automatic 3 speed.

Joined: 9/1/2012
Posts: 12
My 1971 Stingray 350 cu. has a vented gas cap i believe and there is no rubber washer on it. I'm thinking that's why my garage smells of fuel so much! I bought a Non-Vented gas cap for my year Corvette from Ecklers, but why is there two choices of vented to Non-vented? Will it hurt my car if I put the Non-vented gas cap on which has the black O ring or Washer already? Thanks guys! Ed

____________________________________
 Reply Reply  Quote Reply w/Quote
 
Support C3VR!
Suport our advertisers
12/2/12 2:53pm - Reply: 'Re: C3 Gas Caps Question!'
Jaws79 Lifetime Member
Lifetime Member
- Send Private Message


Sykesville, MD - USA

Vette(s):
1979 Corvette Coupe Corvette Light Blue Midnight Blue interior Mirrored Glass T-tops

Joined: 4/27/2008
Posts: 4211
You can't use the non-vented cap if your car was designed for the vented type. Joel or someone else will tell you what 71 came with.
 
Barry
 
Big smile


____________________________________
"Down on the Boardwalk...

(Click image to see a larger version}
 
Lifetime Member #181
 Reply Reply  Quote Reply w/Quote
12/3/12 10:16am - Reply: 'Re: C3 Gas Caps Question!'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19447
Not sure off the top o me haid which ones had the vented caps....some did, some dint, in those years. Using a Non-vented cap where it requires a Vented cap is not a good idea, tho....the tank needs some sort of vent. "Sealed", or non-vented tanks were vented thru the vapor recovery system. A non-vented cap on a "vented" system can cause the tank to cave in, and can cause fuel starvation if the fuel pump pulls a vacuum on the tank while driving. It's best to replace the cap with the same type the system was designed for...and one with a gasket on it. The missing gasket is prolly the main reason for the fumes. I would need to research it a little to find out which cars had what, unless someone else has a definitive answer.

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
12/4/12 11:08pm - Reply: 'Re: C3 Gas Caps Question!'
Adams' Apple Lifetime Member
Lifetime Member
Moderator
- Send Private Message


Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19447
I finally had time to do a little research, and here's what I found.
'63-'69 used Vented caps.
'70'72 had Sealed, or non-vented caps. (The 71 cars had a red plastic plate on the fuel cap with white lettering stating "Open Slowly- Caution".)

So...your car SHOULD have a NON-vented/Sealed cap. Thumbs Up



____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
12/14/12 12:57pm - Reply: 'Re: C3 Gas Caps Question!'
EWPE
Former Member
- Send Private Message


MARGATE, NJ - USA

Vette(s):
1973 convertible

Joined: 3/11/2012
Posts: 3
You should check if your vapor canister is still connected . If the hose from the fuel tank to the canister has been capped you will need a vented gas cap.  

____________________________________
 Reply Reply  Quote Reply w/Quote
 New Topic New Topic Post Reply Reply New Poll New Poll Search     Search Page [1]  
 Forums -> C3 General Discussion
(Moderator: Adam Wartell, Norsky, Adams' Apple)
 

 
Official C3 Vette Registry Community:
Home | Forums | Email | Who's Online | Clubs | Events | Member Stats

Other Official C3 Vette Registry Areas:
Members | Research | Shop | My Account | About C3VR
 

Corvette is a registered trademark of the General Motors Corporation(GM) & Chevrolet Motor Division. Vette Registries, LLC is responsible for all site content (except for member submitted content or where otherwise noted) and does not claim or imply that Chevrolet or GM is responsible for Official C3 Vette Registry content. Vette Registries, LLC is independent from GM and is not affiliated with, sponsored or supported by GM.  Copyright/trademark/sales mark infringements are not intended, or implied and are in fact used to support GM, Chevrolet and Corvette

Official C3 Vette Registry content is Copyright 2001-2017, Vette Registries, LLC. Content may not be reused without written consent. All Rights Reserved. NS

Corvette (Vette) Model Years on this site: 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 30