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CC Advertisers
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10-30-2006, 07:54 PM
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CC Member
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Join Date: Oct 2006
Cobra Make, Engine: Superformance 351/427 stroker
Posts: 103
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Not Ranked
Is there supposed to be a gas cap under... the...
the quick release Lemans cap?
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Advertising
10-30-2006, 08:02 PM
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Backdraft Racing Dealer
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Join Date: Dec 2004
Location: North Haven,
CT
Cobra Make, Engine: Backdraft Racing
Posts: 5,119
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Not Ranked
Yes. Depends on manuf. but there should be one there... on one car I once saw a bathtub/sink type plug. I think it was a CMC.
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10-30-2006, 08:05 PM
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CC Member
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Join Date: Jan 2001
Location: Sunbury,
VIC
Cobra Make, Engine: Rat Rod Racer, LS1 & T56
Posts: 5,391
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Not Ranked
I reckon it's a good idea to run a sealed cap under the Lemans cap and have a carbon canister to take care of the venting. I'm running a sealed filler cap under my lemans cap. I'll try to find a picture.
Cheers
__________________
Mike Murphy
Melbourne Australia
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10-30-2006, 08:15 PM
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Senior Club Cobra Member
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Join Date: Oct 2004
Location: Roanoke,
Tx
Cobra Make, Engine: 2002 Lone Star Classics LS427, 428 CJ engine stroked to 464, 580hp/590tq at flywheel
Posts: 557
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Not Ranked
Mine does not. There is a rubber gasket that seal the Lemans cap to the filler neck.
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10-30-2006, 08:33 PM
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CC Member
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Join Date: Jul 2005
Location: Carpentersville,IL & Maricopa,,
AZ
Cobra Make, Engine: ACE, 351W, 3550 Tremec, Raging(?) Red W/ White Stripe.
Posts: 2,082
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Not Ranked
Quote:
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Originally Posted by Hall1836
the quick release Lemans cap?
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Nope, don't have one either, but like Jay said, it depends on the manufacturer.
Ralph 
__________________
SPEED WAS HIGH - WEATHER WAS NOT - TIRES WERE WET - X MARKS THE SPOT
Burma Shave 
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10-30-2006, 09:07 PM
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CC Member
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Join Date: Dec 2003
Location: Gurnee,
IL
Cobra Make, Engine: Kirkham #259
Posts: 1,396
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Not Ranked
Like this Gas cap in a Flip cap that does not seal.....
__________________
Morris
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10-30-2006, 09:10 PM
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CC Member
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Join Date: Dec 2003
Location: Gurnee,
IL
Cobra Make, Engine: Kirkham #259
Posts: 1,396
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Not Ranked
With this set up and the two vents...... we can fill as fast as a 2" line will go.....
__________________
Morris
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10-30-2006, 09:28 PM
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Senior Club Cobra Member
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Join Date: Sep 2002
Location: Montgomery,
TX
Cobra Make, Engine: CR 427 S/C, 351W, 5 Sp & KMP142 - 427 SO, 4 Spd
Posts: 2,212
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Not Ranked
I know of someone here in Hawaii who uses a tennis ball that seems to
work just fine. 
__________________
Flip
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10-30-2006, 11:09 PM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
My SPF has a nice locking gas cap under the LeMans cap
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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10-31-2006, 08:03 AM
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CC Member
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Join Date: Mar 2000
Location: Fairfield, NJ, USA,
NJ
Cobra Make, Engine: A & C, 351W, Tremec 3550. Exiled Member: Club Cranky
Posts: 5,897
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Not Ranked
The tennis ball was used on the track back in the early days of racing the Cobras. I've used the same one for 7 years and it works fine as an anti-slosh valve. You should see the look on the gas station guys face when I take it out.....the tennis ball that is.....
__________________
Roscoe
"Crisis occurs when women and cattle get excited!"....James Thurber
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10-31-2006, 09:25 AM
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CC Member
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Join Date: Apr 2005
Location: Titusville,
Fl
Cobra Make, Engine: Everett Morrison 460
Posts: 85
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Not Ranked
I chose the locking cap to keep kids and unscrupulous characters at car shows from getting into trouble.
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10-31-2006, 09:28 AM
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Senior Club Cobra Member
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Join Date: Aug 2005
Location: Toronto, Canada,
Ont
Cobra Make, Engine: Shelby CSX 4995, Keith Craft built 427 SO
Posts: 1,168
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Not Ranked
Mine doesn't have one. There is a rubber seal in the Lemans cap.
__________________
"The 427 Cobra is easily the highest performance car ever sold for street use. A decent 427 - not the worst, not the best, will go from zero to 100 mph and back down again to zero in less than 14 seconds. All thing considered, you can put together a pretty good argument that the 427 Cobra is the ultimate performance car, judged on any basis you want to name." Taken from; Corvette, The Sensuous American
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10-31-2006, 09:37 AM
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CC Member
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Join Date: Feb 2005
Location: Truckee and Kailua,
Ca
Cobra Make, Engine: B&B 351/402 Fi roller everything
Posts: 527
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Not Ranked
seems like hair ,fuzz and junk would come off the tenis ball after a while. no? does the cap still seal? I sure would like to stop all the fuel drips in and around the cap(down the back) when my tail does the wiggllie (the car i mean).
__________________
the older i get the faster i was.
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10-31-2006, 11:09 AM
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CC Member
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Join Date: Dec 2003
Location: Gurnee,
IL
Cobra Make, Engine: Kirkham #259
Posts: 1,396
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Not Ranked
The LeMans type of cap has a tendacy to leak when going around corners.....
Especially if you put the car on a track......
The other issue is filling the fuel cell quickly ...... so you put the cap in below the LeMans cap...... and then use the space between the caps as the vent area...... and drill some holes in the sealing plate of the LeMans cap to vent the fuel system thru the LeMans cap............No leaks
Also..... when you are filling the fuel cell .... the vents will start spitting at you when you are almost full..... and they just spit back into the fuel fill hole....
Morris
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Morris
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10-31-2006, 12:02 PM
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CC Member
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Join Date: Aug 2006
Location: Oxford Ct. and Englewood,Fl.,
CT
Cobra Make, Engine: Backdraft 351W Balanced/Blueprinted 360HP / Tremec 5 Speed
Posts: 93
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Not Ranked
Mine has a locking gas cap under the flip top lemans cap...ox_ford_guy
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11-14-2006, 02:38 AM
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Beam Me Up Scottie
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Join Date: Aug 2004
Location: Squantum (part of Quincy),
MA
Cobra Make, Engine: SPF1049 Titanium w/black stripes, 351W with Trick Flow Heads, Tremec 3550
Posts: 7,592
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Not Ranked
Here are pics of the SPF setup
__________________
Warren
'Liberals are maggots upon the life of this planet and need to get off at the next rotation.' (Jamo 2008)
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