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Gas tank filler neck gasket

Posted by Jalmonte

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Gas tank filler neck gasket #1
Jalmonte John and Brenda A Minoa, New York, USA 1951 MG TD "The Green Bonnet"	Posted: June 28, 2012 06:13PM Registered: 1 year ago Posts: 49

I have a 51 TD. When I fill the tank with gas there is always a little that splashes out from under the cap and drips down the outside of the tank when driving. It stops after I use up a gallon or so. There is a round rubber gasket on the filler neck that I'm considering replacing. Does anyone have any experience with that? Thanks.

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Re: Gas tank filler neck gasket #2
Mr. Barry Edward Wesson Hiawassee, Georgia, USA 1952 MG TD ""Rocky""	Posted: June 28, 2012 06:44PM Registered: 3 years ago Posts: 1,860

I may be wrong, but I don't think the gasket is supposed to be rubber...I think it's a type of cork...Maybe someone has replaced it with the wrong gasket...
Another suggestion is to fill the tank with less....Cures the symptom, but not the cause.
Edward

"It's not a car....It's a CAREER!"

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Re: Gas tank filler neck gasket #3
EXLU3453 Colin T Ontario, Canada 1951 MG TD 1959 MG MGA 1500	Posted: June 28, 2012 07:35PM Registered: 1 year ago Posts: 74

The gasket is cork, and easily replaced. Moss supplied cork when I replaced mine. I had some "leakage" until I looked and saw that the cap seals with a firm push down when closing, since the cap actually is a friction fit on the latch.

Hope this helps.

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Re: Gas tank filler neck gasket #4
ddubois Dave DuBois Bremerton, WA, USA	Posted: June 28, 2012 10:04PM Registered: 7 years ago Posts: 4,273

Regardless of the gasket used, if the tank is filled to the top, fuel will be forced through the vent hole in the cap on hard cornering. The best way to cure this is to stick the nozzle all the way down into the tank and when the nozzle shuts off, don't top the tank off.
Cheers,

Dave DuBois
1953 MGTD
1966 MGB
http://homepages.donobi.net/sufuelpumps/

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Re: Gas tank filler neck gasket #5
MikeEldred Michael Eldred Wilmington, Vermont, USA 1951 Willys Jeep M38 1954 MG TF 1973 MG Midget 1977 MG MGB	Posted: June 29, 2012 11:44AM Registered: 3 years ago Posts: 107

Abingdon Spares also has the cork gaskets at a reasonable price. I found that they weren't quite thick enough, and had to make a thinner cork gasket to go under the replacement to make contact with the concave piece on the inside of the cap.

I still do as Dave DuBois suggests, and haven't had any more trouble with fuel sloshing out since replacing the gasket.

-Mike Eldred
Wilmington, VT

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Re: Gas tank filler neck gasket #6
Bob Agar Robert Agar Green Valley, AZ, USA 1953 MG TD "Myrtle Anne" 1957 MG MGA 1500 Coupe "Miss Scarlett" ~ For Sale ! ~ 1974 MG MGB "The Mistress"	Posted: June 29, 2012 04:37PM Registered: 5 years ago Posts: 1,997

Cork gasket, MOSS Part # 293-600

1974.5 MBG Tourer with Weber 32/36 mod and AC.
1957 MGA 1500 Coupe - Stock and original except paint
1953 MG TD - Original car with no mods

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