rusted fuel line 1986 C20 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Artie in Miami · 02-15-2021, 05:20 PM

The fuel filter kept getting clogged with rust...so...I dropped the tank. After almost 35 years, tank was in perfect shape. Rust was coming from 3/8" fuel line and sending unit 3/8" tube. This truck has 3 lines from tank that go to engine area...I know the 3/8' fuel line needs to be replaced...and probably the 1/4" return line from fuel pump...what about the 5/16" line that goes to the charcoal can...since that just deals with fumes, I am thinking that I can leave that and not replace. Is my thinking correct ? Strange that the tank did not rust, yet the fuel lines are full of rust. I am sure the humidity here in Miami had everything to do with that...probably got condensation in the tank over the years and ended up in the lines. I am replacing the tank anyway and the sending unit.

wazzabie · 02-15-2021, 06:48 PM

replace it all

go with a spectra premium tank made in Canada
go with inline tube - get stainless

**old Rusty C10** · 02-16-2021, 12:52 PM

i went and bought new nickel plated lines and replaced them all myself or inline tube probably sells a kit of regular lines

02-15-2021, 05:20 PM	#1
Artie in Miami Registered User Join Date: Dec 2019 Location: PALMETTO BAY Posts: 46	rusted fuel line 1986 C20 The fuel filter kept getting clogged with rust...so...I dropped the tank. After almost 35 years, tank was in perfect shape. Rust was coming from 3/8" fuel line and sending unit 3/8" tube. This truck has 3 lines from tank that go to engine area...I know the 3/8' fuel line needs to be replaced...and probably the 1/4" return line from fuel pump...what about the 5/16" line that goes to the charcoal can...since that just deals with fumes, I am thinking that I can leave that and not replace. Is my thinking correct ? Strange that the tank did not rust, yet the fuel lines are full of rust. I am sure the humidity here in Miami had everything to do with that...probably got condensation in the tank over the years and ended up in the lines. I am replacing the tank anyway and the sending unit.

02-15-2021, 06:48 PM	#2
wazzabie Registered User Join Date: Dec 2011 Location: WA Posts: 366	Re: rusted fuel line 1986 C20 replace it all go with a spectra premium tank made in Canada go with inline tube - get stainless

02-16-2021, 12:52 PM	#3
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,273	Re: rusted fuel line 1986 C20 i went and bought new nickel plated lines and replaced them all myself or inline tube probably sells a kit of regular lines __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!



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