Fuel leak, need some ideas - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

gunchamp · 05-04-2021, 06:30 PM

So deep in this build and almost finished, but hit a snag. I replaced my fuel pump with a zl1 pump assembly. Had fuel to 1/4 tank and was able to get my old pump out through the floor without a mess. Installed the new pump amoung many other things and added a 5 gallon can of 93 to my tank. Woke up to a house filled with the smell of gas. Pulled my back seat and access door back off and found fuel all around the hold down ring. So its a brand new pump and brand new green oring seal. Guess i need to pull it back apart, but any ideas on how to safely get the fuel back out so i can pull the pump again?

Omega · 05-04-2021, 06:43 PM

Are you sure it's not one of the fittings or a cracked line? I assume you primed the system and called it a day? If it's an unseated pump housing you probably wouldn't have been able to get the locking ring back on properly... And fuel sloshing while driving would show the leak.

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hunter1660 · 05-04-2021, 07:04 PM

Pull fuel line a loose under hood. Switch key on and let fuel pump pump it out. Not sure on specifics

gunchamp · 05-04-2021, 09:37 PM

Quote:

Originally Posted by Omega

Are you sure it's not one of the fittings or a cracked line? I assume you primed the system and called it a day? If it's an unseated pump housing you probably wouldn't have been able to get the locking ring back on properly... And fuel sloshing while driving would show the leak.

Sent from my Pixel 4 XL using Tapatalk

100% sure its not the line. Have no idea how its leaking because that ring is so damn tight to get on, but it is. Can watch the fuel slowly coming out from under the ring

gunchamp · 05-04-2021, 10:00 PM

Quote:

Originally Posted by hunter1660

Pull fuel line a loose under hood. Switch key on and let fuel pump pump it out. Not sure on specifics

Thought about that. Was going to take a large hose and see if i can clamp it around there somehow

larry_g · 05-05-2021, 06:20 AM

Any chance you pinched the o ring?

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gtstorey · 05-05-2021, 08:08 AM

If you are not pulling the tank, why do you need to remove the 5 gallons? Unless you get all of the gas out, the tank will still be full of vapors and that is what is the dangerous part, not the liquid.

Ashen 6.2 · 05-05-2021, 08:43 AM

This is really odd. Hoping its an easy fix once you figure it out.

gunchamp · 05-05-2021, 10:00 AM

Quote:

Originally Posted by larry_g

Any chance you pinched the o ring?

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Maybe, was pretty darn careful though. I have never seen one leak like this

gunchamp · 05-05-2021, 10:01 AM

Quote:

Originally Posted by gtstorey

If you are not pulling the tank, why do you need to remove the 5 gallons? Unless you get all of the gas out, the tank will still be full of vapors and that is what is the dangerous part, not the liquid.

Because I did the trap door method to access the pump. The fuel was level with the opening of the basket. I installed the new pump assembly and added 5 gallons. If I knock the ring off, there will be 5 gallons of gas on my ground

gunchamp · 05-05-2021, 10:03 AM

Quote:

Originally Posted by Ashen 6.2

This is really odd. Hoping its an easy fix once you figure it out.

I ordered another o-ring for the pump assembly. Going to have to pump out the gas through the feed line at the fuel rail I guess to lower the level 5 gallons. Curious myself. Maybe i missed some dirt down in there

gtstorey · 05-05-2021, 10:18 AM

Quote:

Originally Posted by gunchamp

Because I did the trap door method to access the pump. The fuel was level with the opening of the basket. I installed the new pump assembly and added 5 gallons. If I knock the ring off, there will be 5 gallons of gas on my ground

10-4, I guess I should have realized there was more than just five gallons in the tank if the fuel pump was leaking at the o-ring.

gunchamp · 05-05-2021, 11:01 AM

Quote:

Originally Posted by gtstorey

10-4, I guess I should have realized there was more than just five gallons in the tank if the fuel pump was leaking at the o-ring.

Still crazy though, its all brand new. Got to pump this pig down when I get some time and its not raining. The poor girl is seeing its first time out in the weather. Wife is giving me crap about the fuel smell in the house lol

tartagliazl1 · 05-05-2021, 01:55 PM

Can you jack up the passenger side and let the fuel go to the other side of the tank.

05-04-2021, 06:30 PM	#1
gunchamp Drives: 15 Camaro SS Join Date: Oct 2018 Location: Mountains of central PA Posts: 1,442	Fuel leak, need some ideas So deep in this build and almost finished, but hit a snag. I replaced my fuel pump with a zl1 pump assembly. Had fuel to 1/4 tank and was able to get my old pump out through the floor without a mess. Installed the new pump amoung many other things and added a 5 gallon can of 93 to my tank. Woke up to a house filled with the smell of gas. Pulled my back seat and access door back off and found fuel all around the hold down ring. So its a brand new pump and brand new green oring seal. Guess i need to pull it back apart, but any ideas on how to safely get the fuel back out so i can pull the pump again? __________________ 15 Camaro SS- GPI max top end, ESS Vortech V3 9psi, ID 1050s, ZL1 pump, JMS bap, Long tubes, Corsa extreme, Circle D pro 5C, 391 rear, DSS carbon drive shaft, poly cradle bushings, tuned by Ted Jannetty and much much more

05-04-2021, 07:04 PM	#3
hunter1660 Drives: 2011ss/rs camaro Join Date: Sep 2011 Location: florida Posts: 1,261	Pull fuel line a loose under hood. Switch key on and let fuel pump pump it out. Not sure on specifics __________________ . OBX LTH,Rotofab,Magnuson Heartbeat.AEM wideband, HP Tuners

05-05-2021, 06:20 AM	#6
larry_g Drives: 2014 1SS/1LE Join Date: Nov 2015 Location: Louisville, KY Posts: 826	Any chance you pinched the o ring? Sent from my Pixel 5 using Tapatalk __________________ 830 WHP 700 WTQ, Whipple 2.9 @ 13lbs Boost, Flex Fuel Tune by Blevins Tuning, LSA SBE, 3.5 GripTec, ATI LS3 Damper, AFR 260cc Mongoose, ARP Studs, Yella Terra Ultralites, Johnson 2110R, BTR PDS Stage 3, Melling 10355, Improved Racing Baffle, ID1050X, DSX Triple Fuel Pump, RotoFab CAI, NW 103mm TB, Stainless Works 1-7/8" LTH to 3" Speed Eng w/ X-pipe to NPP, Powermaster 9509 XS, Detroit Speed Motor Mounts, MGW, Monster LT1-S, ZL1 Calipers, DBA Rotors & Pads, Bilstein B6 Struts & Shocks, BMR 1.25" Drop Springs & Adj Rear Bar, Pegasus Solid Bushings, Z/28 Wheels, other misc parts.

05-05-2021, 08:08 AM	#7
gtstorey Drives: 2010 Camaro SS2,L99, LSA SC Join Date: Aug 2017 Location: Huntsville, AL Posts: 2,154	If you are not pulling the tank, why do you need to remove the 5 gallons? Unless you get all of the gas out, the tank will still be full of vapors and that is what is the dangerous part, not the liquid. Last edited by gtstorey; 05-05-2021 at 08:47 AM. Reason: punctuation

05-05-2021, 08:43 AM	#8
Ashen 6.2 Drives: 2014 Camaro Z/SS Join Date: May 2014 Location: NW Arkansas Posts: 1,993 View My Garage	This is really odd. Hoping its an easy fix once you figure it out. __________________ 2014 Camaro SS L99, Ashen Grey w/Black Leather - Build thread - http://www.camaro5.com/forums/showthread.php?t=491561 Mods - GPI 416 w/Custom Grind Cam, Ported Heads & Tuned by Ben, Mag Heartbeat, ZL1 Fuel Pump & DSX Aux Pump, NW 103 TB, FIC 1650's, Alky Meth, Circle D 3600 Triple Disc, RPM 5” CAI, Kooks Headers, Solo Cat Back, Viking Coil Overs & all the BMR Goodies in the rear, Zl1 3.23 Diff, DSS Axles, Gulfcoast Driveshaft, Hendrix Offset Diff Bushings, AFE Solid Subframe Bushings, 875HP/843TQ 5FDP

05-04-2021, 06:43 PM	#2
Omega Drives: G8 Join Date: Mar 2012 Location: NJ Posts: 251	Are you sure it's not one of the fittings or a cracked line? I assume you primed the system and called it a day? If it's an unseated pump housing you probably wouldn't have been able to get the locking ring back on properly... And fuel sloshing while driving would show the leak. Sent from my Pixel 4 XL using Tapatalk

05-05-2021, 01:55 PM	#14
tartagliazl1 Drives: 2013 zl1 vert Join Date: Dec 2018 Location: Rochester, New york Posts: 949	Can you jack up the passenger side and let the fuel go to the other side of the tank. __________________ 22% lower/ 2.5 upper/ 2” headers/ cat delete/ x-pipe/ 2 gallon x tank/ 100-3 pump/ fic 850/ dsx aux kit/ 103mm throttle body/ RPM 5” intake/ meth kit/ prometh lid injection/FI interchiller/ 160* stat/ ngk-7/ msd wires/ elite catch can/ tsp cam/ Che trunnions/ ported supercharger/ 1/2” lid spacer/ brick mod/BMR toe and trailing arms/ 751hp 757 tq SAE @17.3lb on a loaded dyno.