Too much gas pressure - Team Camaro Tech
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post #1 of 3 (permalink) Old Apr 6th, 01, 01:38 PM Thread Starter
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Join Date: Jun 2000
Posts: 331

I have a orginal 69 SS. A pervious owner has converted the dual fuel system to a single unit (replaced the sending unit, abandoned the return line). When I open my gas cap, I am flooded with gas fumes from the pressure in the tank. Especially after I have driven it for a while. I checked at the part store and no one makes a vented cap for a 69 gas tank. Anyone else had this problem? How did you fix it? I thought about putting a whole in the cap, but then gas might flow out of it. You all know how high gas prices are getting.
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post #2 of 3 (permalink) Old Apr 6th, 01, 01:41 PM
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Join Date: Apr 1999
Location: Grove City, Ohio, USA
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Hi, Don....

I put a small pin sized hole in my cap. The originals are "VENTED", but they don't seem to work that well...

Steve McCorry - Central Ohio Camaro Club
'69 Camaro RS/SS-350 - Daytona Yellow
'95 Camaro Z-28 - Sebring Silver
click here to see my webpage ---> (updated 3/10/01)
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post #3 of 3 (permalink) Old Apr 7th, 01, 04:25 AM Thread Starter
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Are you getting any gas leaking thru the pin sized hole? Also do you think this over pressure situation increases or decreases the performace of my engin. I am thinking decreases.

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