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post #1 of 2 (permalink) Old May 16th, 19, 12:17 PM Thread Starter
Join Date: Apr 2016
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Proper Fuel Sender

I have a 69 Camaro that I bought a couple years ago with a ZZ502 under the hood. The other day I noticed I had a leak under my gas tank that appeared to be coming from the top. I just took the tank out and can't tell exactly where it's coming from but I think it's the seal where the sender goes into the tank. Well long story short while I have it out I'm going to swap in a stainless reproduction tank, was looking at one from OER ( part R322). Now I'm trying to decide what sender I should be getting for it.

The tank currently has a 3/8 sender with no vent tube. Would it be beneficial for my to switch to a sender with a 1/4" vent tube?
When I got to fuel up there is definitly negative pressure in the tank as when I would take the cap off I could head air woosh in. Also the engines that cam factory with the vent line where did they run them, and was there some kind of check valve to be installed in the line. If you just ran an open vent line wouldn't your garage smell like gas after a while? Any advice or suggestions would be appreciated.

'69 Camaro SS X55, Tuxedo Black w/ white rally stripes, houndstooth interior, Muncie 4 speed, ZZ502, 4.11 rear, hotchkiss front suspension
2012 Camaro SS Convertible
2017 COPO Camaro #23, Supercharged LSX 350
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post #2 of 2 (permalink) Old May 16th, 19, 05:36 PM
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Location: Rockland Cty/Melb bch Fla
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I would look into the II Much vent system.

1969 X66 396 LeMans Blue, M20, 373 (Sold)
1969 Convertible LS3 TKO 600, 373
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