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RAII4speed
07-20-2018, 03:20 PM
My 1969 Nova SS 350 4-speed Has pressure in the tank every time I run it and it has a vented cap. Is that normal?
L78steve
07-20-2018, 04:59 PM
Normal. Cap lets air in not out.
RAII4speed
07-20-2018, 05:24 PM
It actually broke the seam in the top of the original tank and I do not want to harm the new one. What to do?
L78steve
07-20-2018, 08:36 PM
Iv,e never heard of the pressure build up causing a problem. Besides the needle and seat in the carb. would pop off if the pressure was excessive.
Gut an old cap and install a pressure gauge. Bet its less than a pound.
It may seem like more due to the volume.
L78steve
07-20-2018, 08:38 PM
Most times I fill up my 70 Nova I get a pressure release.
m22mike
07-21-2018, 12:05 AM
http://www.camaros.org/forum/index.php?topic=6733.msg139277#msg139277
I
http://camaros.org/forum/index.php?PHPSESSID=vai26vq7dk0dag81773vvoeg55&topic=239.0
novadude
07-23-2018, 05:05 PM
My old 70 Nova used to hiss at you all the time when unscrewing the cap. I never did figure out why, but I guess it's normal?