Fuel Pump Upgrade - PN# for the correct fuel line? - Page 2

oldman · 01-16-2019, 09:29 AM

The sealant is some sort of blue deal, looks like gun blue to be honest. Anyway it is not something that you can apply yourself. I reused my old lines, no issues. I did buy a new line for the LPE big bore install, because this will be a more permanent build.

laynlo15 · 01-16-2019, 09:34 AM

Honestly for under 100 bucks why is it worth a try. You've spent all the time removing the manifold and changing the pump to me its a no brainer. I've had mine off a 1/2 dozen times and would not take a chance. I have new ones right now as I'm pulling the Blower back off to do the lash cap on the pump. If it leaks and for some reason catches fire was it really worth it not to change it?

KingLT1 · 01-16-2019, 10:34 AM

Quote:

Originally Posted by laynlo15

Honestly for under 100 bucks why is it worth a try. You've spent all the time removing the manifold and changing the pump to me its a no brainer. I've had mine off a 1/2 dozen times and would not take a chance. I have new ones right now as I'm pulling the Blower back off to do the lash cap on the pump. If it leaks and for some reason catches fire was it really worth it not to change it?

Agreed...the shop helping me said they will change them from here on out even though mine was the first to have this issue. 100.00 is not worth a fire and thousands in damage.

DorkMissile · 01-16-2019, 11:16 PM

Quote:

Originally Posted by oldman

The sealant is some sort of blue deal, looks like gun blue to be honest. Anyway it is not something that you can apply yourself. I reused my old lines, no issues. I did buy a new line for the LPE big bore install, because this will be a more permanent build.

My friend says it is not a sealant or thread locking compound - it is lubricant since it is stainless on stainless. GM actually made a running change at one point to a clear lubricant vs the blue as it was being mistaken in the field for loc-tite

steelheadrob · 01-16-2019, 11:42 PM

Agreed, I have seen one of the replacement ones, unlike the original there is no blue seal on the replacement ones, must be clear if it is there.

oldman · 01-17-2019, 10:22 PM

yep my new line is clear. I think I'm done now with the big bore, new line, big injector, e85, and the secondary fuel pump and twin fuel lines... Lingenfelter said this new pump is the same unit that is supporting their new big fuel lobe cam... ain't changing the cam... too lazy.

tom's2005gto · 01-20-2019, 02:58 PM

Quote:

Originally Posted by laynlo15

I didn't reuse mine on any of the times I've changed pumps. I have a good buddy that helps me and he works for GM. He said GM recommends it because they've had some problems so I just go ahead and change them each time 80.00 bucks total is not an issue to me if there is any chance something could happen. There are 2 pipes you need.
12677004 $25.93 ($38.42) and 12677002 $44.13 ($65.38) That's what I paid. Retail is of course the higher prices I listed.

I bought the LT4 pump and injectors. I also bought the 12618337 hard line. Do I also need the two lines you mention? Along with the line I bought? Or did I buy a line I do not need?

JANNETTYRACING · 01-21-2019, 09:47 AM

More critical is that everything is spotless Clean and torqued losen then retorque.

Ted.

tom's2005gto · 01-21-2019, 12:25 PM

Quote:

Originally Posted by JANNETTYRACING

More critical is that everything is spotless Clean and torqued losen then retorque.

Ted.

Thanks Ted

01-16-2019, 09:29 AM	#15
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,317	The sealant is some sort of blue deal, looks like gun blue to be honest. Anyway it is not something that you can apply yourself. I reused my old lines, no issues. I did buy a new line for the LPE big bore install, because this will be a more permanent build. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

01-16-2019, 09:34 AM	#16
laynlo15 Drives: 2022 Lt1 A10 Join Date: Nov 2015 Location: clark, mo Posts: 8,860	Honestly for under 100 bucks why is it worth a try. You've spent all the time removing the manifold and changing the pump to me its a no brainer. I've had mine off a 1/2 dozen times and would not take a chance. I have new ones right now as I'm pulling the Blower back off to do the lash cap on the pump. If it leaks and for some reason catches fire was it really worth it not to change it? __________________ 2022 Lt1 6.2 A10, Maggie 2300, THPSI Port Inj/10 rib, Rotofab, E, Nickey, SCOL, Griptech, RC Bandits, Hoosiers/MT 9.80@142.96 1.44 60ft, 6.34@112 707/669 RWHP/TRQ. 16SS Maggie 2650 9.41@147 1.35 60ft, 5.99@119. 16 C7 A8 10.90@128 Bolt on stuff

01-16-2019, 11:42 PM	#19
steelheadrob Tactical Garage Drives: 2016 Camaro 2SS Join Date: Nov 2016 Location: Idaho Posts: 427	Agreed, I have seen one of the replacement ones, unlike the original there is no blue seal on the replacement ones, must be clear if it is there. __________________ Tactical Garage YouTube Channel Whipple Build Member Car Journal Whipple, LT4 Fueling, Headers, Rotofab, DRs/Skinnies, Meth, E55 10.17@135.91 (@3,607 DA) Whipple with LT4 Fueling & Headers Dyno 657hp/650tq (5th Gear Dyno Dynamics)

01-17-2019, 10:22 PM	#20
oldman Drives: SS 6 speed of course Join Date: Jan 2016 Location: Hilo, HI Posts: 4,317	yep my new line is clear. I think I'm done now with the big bore, new line, big injector, e85, and the secondary fuel pump and twin fuel lines... Lingenfelter said this new pump is the same unit that is supporting their new big fuel lobe cam... ain't changing the cam... too lazy. __________________ Forged short block, large duration sub .600 lift Cam Motion cam, 7200 RPM fuel cut, Pray Ported Heads, 3.85 pulley D1X, stage II intercooler, DSX secondary low side, DSX E85 sensor, Lingenfelter big bore 2.0 pump, ported front cats, 60608 Borla, LT4 injectors, ZL1 1LE driveshaft and Katech ported TB, ported MSD intake, BTR valvetrain, ARP studs, ProFlow valves, PS4 tires.

01-21-2019, 09:47 AM	#22
JANNETTYRACING Drives: BLUE CAMARO ZL1 1LE M6 Join Date: Jun 2009 Location: ON THE DYNO WATERBURY CT. Posts: 15,225	More critical is that everything is spotless Clean and torqued losen then retorque. Ted. __________________ www.jannettyracing.com Celebrating 37 years Performance parts, Installation, Fabrication, Dyno tuning, Remote custom tuning, and alignments. 203-753-7223 Waterbury CT. 06705 email tedj@jannettyracing.com

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