Replacing tank, what else needs to go? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BB72CHEVKT · 05-31-2007, 10:41 PM

I bought a 69 that had been sitting for 15 years. It had 3 tanks the orig and two aux tanks. I have replace the old tank in cab since truck is all original and have disconnected aux tanks. Would you replace all the lines from the tank to carb plus the carb filter and fuel line filter? Or just replace the filters? The gas smells like kerosene, but the truck will still barely run off the gas. I hope it will run better with the new tank. I am also going to do do plus and wire as points and fuel pump have been replaced. Oh yeah, what about the fuel pump it has been replace but has had the old tanks gus run through it, should I replace?

BB72CHEVKT · 05-31-2007, 10:43 PM

OH! I almost forgot I replaced the sending unit as well. Getting relaxed a little quicker than I thought.

brak · 05-31-2007, 11:09 PM

DRAIN THAT TANK!!! the kerosene smell you mentioned is a byproduct of the gas evaporating. it turns into a lacquer (for lack of a better word) and is not good for your carb. I would siphon out as much as possible, then fill the tank, and add a can of seafoam for good measure. It will do a good job cleaning the tank and carb.

change the filter for sure

As far as the lines go:
Personally i would inspect them, and if they are in good condition, i would just flush them out with some brake Kleen, and good 'ol air pressure...
If you can remove them from the truck, it will make the job easier, but not absolutely necessary.

Bob Moore · 05-31-2007, 11:31 PM

Check the hard lines - replace if needed. Replace ALL the hoses without question.

05-31-2007, 10:41 PM	#1
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	Replacing tank, what else needs to go? I bought a 69 that had been sitting for 15 years. It had 3 tanks the orig and two aux tanks. I have replace the old tank in cab since truck is all original and have disconnected aux tanks. Would you replace all the lines from the tank to carb plus the carb filter and fuel line filter? Or just replace the filters? The gas smells like kerosene, but the truck will still barely run off the gas. I hope it will run better with the new tank. I am also going to do do plus and wire as points and fuel pump have been replaced. Oh yeah, what about the fuel pump it has been replace but has had the old tanks gus run through it, should I replace? __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

05-31-2007, 10:43 PM	#2
BB72CHEVKT Junior Member Join Date: Mar 2007 Location: Hideaway, TX Posts: 4,950	I almost forgot I replace the sending unit as well OH! I almost forgot I replaced the sending unit as well. Getting relaxed a little quicker than I thought. __________________ 71 Suburban 350/700R4 Project Trixie 72 CHEVY,Highlander,SWB,396,T400

05-31-2007, 11:09 PM	#3
brak Registered User Join Date: Apr 2006 Location: MinneSNOWta Posts: 1,381	Re: Replacing tank, what else needs to go? DRAIN THAT TANK!!! the kerosene smell you mentioned is a byproduct of the gas evaporating. it turns into a lacquer (for lack of a better word) and is not good for your carb. I would siphon out as much as possible, then fill the tank, and add a can of seafoam for good measure. It will do a good job cleaning the tank and carb. change the filter for sure As far as the lines go: Personally i would inspect them, and if they are in good condition, i would just flush them out with some brake Kleen, and good 'ol air pressure... If you can remove them from the truck, it will make the job easier, but not absolutely necessary. __________________ 2003 GMC Sierra 1500 WT 1995 Nissan Hardbody 2016 Hyundai Veloster Turbo DC2 (SW/AW) Clyde W. Harvey USN "Socialism is a philosophy of failure, the creed of ignorance, and the gospel of envy, its inherent virtue is the equal sharing of misery" Winston Churchill

05-31-2007, 11:31 PM	#4
Bob Moore Registered User Join Date: Feb 2004 Location: Tacoma WA Posts: 1,365	Re: Replacing tank, what else needs to go? Check the hard lines - replace if needed. Replace ALL the hoses without question. __________________ 67 C-20 LWB, tilt, speed alert, vac, 454, T400 67 C-10 SWB, factory air with more to follow



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