Gas cap
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Fleet Mechanic
Joined: Jan 2014
Posts: 1,558
Likes: 295
From: Billings Montana
Gas cap
Is there such thing as a vented gas cap that lets pressure out as well as letting air in to eliminate a vacuum in the tank? Now that it is finally warming up here my tank is pressurizing to the point the cab fills up with fumes.
Logistics Pro
Joined: Mar 2005
Posts: 3,771
Likes: 80
From: tujunga, calif
Gas caps that vent to the atmosphere have been illegal since the 70's. The vented one sold today only let air in. They are a PITA on older systems. I have one that I drilled a small 1/16 hole in it to relieve the pressure..
Senior User
Joined: Oct 2014
Posts: 313
Likes: 1
Hey guys I'm needing to buy a new gas cap and I found one in the MAC's catalog but the one I like happens to be for years 48-50. Does anyone know if it will still fit?
I tried calling MAC but whoever I was talking to was not wanting to be helpful.
I don't like the "warning! Fuel spray may cause injury" thing
I tried calling MAC but whoever I was talking to was not wanting to be helpful.
I don't like the "warning! Fuel spray may cause injury" thing
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Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 787
From: Simi Valley, CA
1948/50 is different, 1951/55 is different.
B6TZ-9030-A .. Fuel Cap-Vented-Anti-Surge-Chrome (Motorcraft FC-23) / Obsolete ~ Available NOS & Reproduced
1956/60 F100/1100 & 1961/72 F100/750 except 1970/72 F100/250 with Evaporative Emission.
HASELDEN BROTHERS in Hemingway SC has 1 = 843-558-2134.
KLIMESH MOTOR SALES in Calmar IA has 6 = 563-562-3241.
B6TZ-9030-A .. Fuel Cap-Vented-Anti-Surge-Chrome (Motorcraft FC-23) / Obsolete ~ Available NOS & Reproduced
1956/60 F100/1100 & 1961/72 F100/750 except 1970/72 F100/250 with Evaporative Emission.
HASELDEN BROTHERS in Hemingway SC has 1 = 843-558-2134.
KLIMESH MOTOR SALES in Calmar IA has 6 = 563-562-3241.
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Fleet Mechanic
Joined: Oct 2007
Posts: 1,981
Likes: 106
Like I say, first stop after you gas up vent the tank by loosening the cap. The gas is stored underground and on a hot summer day it goes from a 60-65 degree state to a 80+ degree state.
Its not rocket science.
Its not rocket science.
Post Fiend
Joined: Apr 2002
Posts: 19,311
Likes: 97
From: Waterloo, Iowa
The sending unit/gasket area can result in fumes escaping too. Use new gasket and suitable sealer if required. Once new filler hose and clamps are installed and everything is squared away there won't be any fuel odors in the cab.
Old Truck Dog, Burlap, and Barn, well that's different.
Old Truck Dog, Burlap, and Barn, well that's different.
Senior User
Joined: Jun 2014
Posts: 291
Likes: 1
From: California
I had a similar problem with the gas cap--check this thread for the one that worked for me finally:
https://www.ford-trucks.com/forums/1...-for-long.html
~Steve
https://www.ford-trucks.com/forums/1...-for-long.html
~Steve
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