Fuel Sending Unit Screws too long and punctured top of fuel tank?

phunk · 06-06-2017, 10:52 PM

I have seen (via email and phone) this several times. I have a warning about it in my 370z fuel pump mod PDF.

I usually recommend attempting a heavier coat of PTFE thread sealant. Tank replacement is the only true fix. But if you can get thread sealant (gasoline compatible) to stop the leak, then it won't matter until next time you have to service the pump and deal with it again.

Dbeckwith · 06-10-2017, 11:46 PM

Quote:

Originally Posted by phunk

I have seen (via email and phone) this several times. I have a warning about it in my 370z fuel pump mod PDF.

I usually recommend attempting a heavier coat of PTFE thread sealant. Tank replacement is the only true fix. But if you can get thread sealant (gasoline compatible) to stop the leak, then it won't matter until next time you have to service the pump and deal with it again.

Thanks phunk. I didnt smell gas anymore after an initial test, but then i think i ran into other issues and the tune or maf code caused a rich condition bringing fuel smell again. Ill try the PTFE thread sealant and see if i have any luck.

Wish i had the info on why someone switch the screws out to begin with!!

Sent from my SM-G950U using Tapatalk

Rusty · 06-11-2017, 07:50 AM

Bet they dropped the little bolts when they was trying to install them, and lost them.

06-06-2017, 10:52 PM	#1 (permalink)
phunk A True Z Fanatic Join Date: Mar 2009 Location: Chicago Posts: 3,669 Drives: 370 Rep Power: 974725	I have seen (via email and phone) this several times. I have a warning about it in my 370z fuel pump mod PDF. I usually recommend attempting a heavier coat of PTFE thread sealant. Tank replacement is the only true fix. But if you can get thread sealant (gasoline compatible) to stop the leak, then it won't matter until next time you have to service the pump and deal with it again. Dbeckwith and ihiryu like this. __________________ Charles @ CJ Motorsports : Website \| Facebook \| Instagram \| YouTube Home of the 9 second, stock longblock, stock drivetrain 6MT 370z. 9.91 @ 142mph Last edited by phunk; 06-07-2017 at 01:24 AM.

06-11-2017, 07:50 AM	#3 (permalink)
Rusty A True Z Fanatic Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 70 Posts: 35,579 Drives: 2011 Nismo GM 6M Rep Power: 2684440	Bet they dropped the little bolts when they was trying to install them, and lost them. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

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