Rusty gas tank cap - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chewed 71'er · 11-28-2002, 08:06 PM

Does anyone have moisture problems with their in-cab gas tanks? The bottom of my gas cap is rusty, wondering how condensation is getting in the tank. Is the vent in the cap or tank sticking open? So far engine runs fine, but the moisture/rust concerns me, don't want problem to progress.

Cliff · 11-28-2002, 08:22 PM

The outside of my tank sweats. I can't figure it out, tho i'm sure someone has had this problem. It's behind the seat in a 72 c/10. every line is connected as it should be I believe. but it sweats up to however full the tank is. ? Cliff

Truckstr · 11-28-2002, 09:17 PM

Condensation will form in the gas tank (any gas tank) when the weather changes accordingly AND if there is not a full tank of gas. That's why I "try" to keep my tank full as much as possible.

Jeff

Hooter · 11-28-2002, 09:29 PM

Ya or at the least put an anti rust treatment in there and drive around corners real fast to slosh the gas around

Cliff · 11-28-2002, 10:57 PM

my condensation is on the outside of the tank... it gets pretty much soaked

11-28-2002, 08:06 PM	#1
chewed 71'er Registered User Join Date: Mar 2002 Location: KC, NW Missouri Posts: 144	Rusty gas tank cap Does anyone have moisture problems with their in-cab gas tanks? The bottom of my gas cap is rusty, wondering how condensation is getting in the tank. Is the vent in the cap or tank sticking open? So far engine runs fine, but the moisture/rust concerns me, don't want problem to progress.

11-28-2002, 08:22 PM	#2
Cliff Registered User Join Date: Dec 1999 Location: Pittsburgh PA Posts: 291	My tank sweats The outside of my tank sweats. I can't figure it out, tho i'm sure someone has had this problem. It's behind the seat in a 72 c/10. every line is connected as it should be I believe. but it sweats up to however full the tank is. ? Cliff __________________ 1972 Custom deluxe 305/350 C/10 8-foot bed with 1/4 inch diamond plate steel bed floor.

11-28-2002, 09:17 PM	#3
Truckstr Registered User Join Date: Nov 2002 Location: Lebanon, Tennessee Posts: 1,372	Condensation will form in the gas tank (any gas tank) when the weather changes accordingly AND if there is not a full tank of gas. That's why I "try" to keep my tank full as much as possible. Jeff __________________ Jeff '67 short Fleet; my ongoing project. '66 long Fleet; my original "baby." Live life or bust trying.

11-28-2002, 09:29 PM	#4
Hooter My other Love Join Date: Aug 2001 Location: Castlegar B.C. Canada Posts: 4,085	Ya or at the least put an anti rust treatment in there and drive around corners real fast to slosh the gas around __________________ Castlegar B.C.The great white North (Canada Eh!) Hooter_5@hotmail.com First generation Monte Carlo club pictures of my life

11-28-2002, 10:57 PM	#5
Cliff Registered User Join Date: Dec 1999 Location: Pittsburgh PA Posts: 291	condensation my condensation is on the outside of the tank... it gets pretty much soaked __________________ 1972 Custom deluxe 305/350 C/10 8-foot bed with 1/4 inch diamond plate steel bed floor.

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