cobra fuel hat leaking

hardhitter · March 16th, 2010, 12:17 PM

After I installed my dual cobra pumps I noticed the tank would leak terribly when full so I dropped it again and realized I forgot to tighten the fuel hat bolts all the way. Now they are tight and the tank is still leaking when full but not as much. Does the hat need any sealant to go in the gt tank?

Trick Tuners · March 16th, 2010, 01:01 PM

I didn't put any sealant on mine. I think there is a gasket. Are you sure its leaking from the hat and not the filler tube?

hardhitter · March 16th, 2010, 01:08 PM

I can't really say for sure where it's leaking from since I can't see the top of the tank when it's installed and full. It's definitely not the filler neck and it's dripping on the driver's side onto the exhaust.

Trick Tuners · March 16th, 2010, 01:16 PM

you can't drive it like that, it would be super dangerous! Check all the fittings and the gasket. Maybe seal the hat with rtv. how much is it leaking?

hardhitter · March 16th, 2010, 01:24 PM

Originally Posted by Trick Tuners

you can't drive it like that, it would be super dangerous! Check all the fittings and the gasket. Maybe seal the hat with rtv. how much is it leaking?

lol i've been doing it for a couple of weeks now.. it only leaks when it's all the way full up.. its leaking like a drop per second? I'm wondering if the pumps are touching the bottom of the tank and not allowing the hat to close all the way. I don't want the sealant to dissolve into the fuel or anything like that.

Trick Tuners · March 16th, 2010, 01:48 PM

I'm pretty sure rtv is fuel proof, but not totally sure. I would double check the gasket and make sure the evap stuff is stuck in there good. My guess is the seal is bad or not fit in there right.

Shaun03GT · March 16th, 2010, 04:08 PM

Yea I was gonna say put some RTV around the hat man. Is it definatley the fuel hat? Not like the inlet line to the fuel filter? Or the filter itself?

Also, question for ya, you can run twin Cobra pumps in a non sumped tank? So could I run twin ford GT pumps in the stock GT tank? But the sumped tank lets you run it below a 1/4 tank right?

Black Bullitt · March 16th, 2010, 07:44 PM

I would invest in a new fuel hat gasket and a filler neck gasket. Especially a filler neck gasket. Usually when you drop a gas tank you always run the risk of ripping that gasket...ask me how I know. lol

hardhitter · March 16th, 2010, 09:16 PM

Originally Posted by Black Bullitt

I would invest in a new fuel hat gasket and a filler neck gasket. Especially a filler neck gasket. Usually when you drop a gas tank you always run the risk of ripping that gasket...ask me how I know. lol

No way i'm buying another gasket.. I've bolted the stock hat down at least 10 times without it leaking and this hat is brand new with a brand new gasket and everything.. I've already replaced the filler neck gasket and it's not leaking.

March 16th, 2010, 12:17 PM	#1
hardhitter MM Fanatic 1999 Mustang GT Join Date: Nov 2007 Location: Houston, TX Posts: 3,610 iTrader: 1 reviews	cobra fuel hat leaking After I installed my dual cobra pumps I noticed the tank would leak terribly when full so I dropped it again and realized I forgot to tighten the fuel hat bolts all the way. Now they are tight and the tank is still leaking when full but not as much. Does the hat need any sealant to go in the gt tank? __________________ Vortech V2 Si

March 16th, 2010, 01:01 PM	#2
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	I didn't put any sealant on mine. I think there is a gasket. Are you sure its leaking from the hat and not the filler tube? __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

March 16th, 2010, 01:08 PM	#3
hardhitter MM Fanatic 1999 Mustang GT Join Date: Nov 2007 Location: Houston, TX Posts: 3,610 iTrader: 1 reviews	I can't really say for sure where it's leaking from since I can't see the top of the tank when it's installed and full. It's definitely not the filler neck and it's dripping on the driver's side onto the exhaust. __________________ Vortech V2 Si

March 16th, 2010, 01:16 PM	#4
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	you can't drive it like that, it would be super dangerous! Check all the fittings and the gasket. Maybe seal the hat with rtv. how much is it leaking? __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

March 16th, 2010, 01:48 PM	#6
Trick Tuners MM Fanatic KB'd GT Join Date: Nov 2006 Location: San Diego Posts: 4,471 iTrader: 3 reviews	I'm pretty sure rtv is fuel proof, but not totally sure. I would double check the gasket and make sure the evap stuff is stuck in there good. My guess is the seal is bad or not fit in there right. __________________ Check out my forums for stuff on troubleshooting, tuning, etc We teamed up with Socal Performance Racing to bring dyno tuning to San Diego. Be friends with us on FB

March 16th, 2010, 04:08 PM	#7
Shaun03GT I Post Entirely Way Too Much 2003 Mustang GT 1/8 - 8.09 @ 91.39mph 1/4 - 12.35 @ 114.52mph Join Date: Sep 2009 Location: Weymouth, MA Posts: 12,064 iTrader: 11 reviews	Yea I was gonna say put some RTV around the hat man. Is it definatley the fuel hat? Not like the inlet line to the fuel filter? Or the filter itself? Also, question for ya, you can run twin Cobra pumps in a non sumped tank? So could I run twin ford GT pumps in the stock GT tank? But the sumped tank lets you run it below a 1/4 tank right? __________________ 2003 Mustang GT Vortech V1 Intercooled SAE Corrected - 380rwhp & 380rwtq @ 9psi Uncorrected - 401rwhp & 400rwtq @ 9psi Tuned By: Pete @ Performance Dyno Affordable Supercharger Build Guide Supercharger Info for Noobs

Remove Advertisements Sponsored Links
Forums at Modded Mustangs Advertisement Advertisement

Threads Similar to: cobra fuel hat leaking
Thread	Thread Starter	Forum	Replies	Last Post
Dual fuel pumps, with GT hat?	RyanGT	99-04	51	February 24th, 2010 08:17 PM
Fore Dual fuel pump hat for GT????	BakerFX4	99-04	14	April 1st, 2009 05:44 PM
Fore Precision 05+ GT/GT500 Fuel Hat	Jonathan@DRI	2005 - 2010	0	August 14th, 2008 03:26 PM

All times are GMT -4. The time now is 05:43 AM.
Contact Us - Modded Mustangs - Privacy Statement - Top
Modded Mustangs is ©2005-2008, All Rights Reserved, And is Not Affiliated with Ford Motor Company. Forum is powered by vBulletin ©2000 - 2012, Jelsoft Ent. Ltd. & SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.