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Registered
Join Date: Dec 2003
Location: Centreville, MARYLAND
Posts: 938
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Fuel tank pressure negative or positive
Noticed the SC was running a slight bit ragged and my old smeller detected a fuel smell every once in a while. After some detective work found the gasket to the fuel cap went to lunch. I wondered if the fuel tank had a slight positive pressure or a slight negative pressure. If negative why did I smell fuel? Why? I would think there would need to be a slight positive pressure to cause fuel vapors to find their way to the charcoal filter.
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Old Tee all 911s sold |
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09-24-2004, 04:46 PM
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Registered
Join Date: May 2001
Location: Peoples Republic of Long Beach, NY
Posts: 21,140
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your fuel tank is vented. Your fuel pump intake sees head psi at 2.31ft = 1psi.
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Ronin LB '77 911s 2.7 PMO E 8.5 SSI Monty MSD JPI w x6 |
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09-24-2004, 06:24 PM
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