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Old 07-17-2013, 11:15 AM
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Join Date: Feb 2007
Posts: 81
1971 250C Fuel Geyser

Having replaced the Zenith carbs with Webers, my car runs great. The emission controls are disconnected & vacuum ports plugged (my vacuum advance is non-op). However, when I was facing nose-down on a significantly inclined driveway yesterday, I smelled gas & noticed profuse (practically pouring) fuel leakage from the front of the car. It stopped when I brought the car level. I'll soon to recreate the scenario & seek the source, but before I do, has anyone experienced this/have suggestions?

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Old 07-17-2013, 11:42 AM
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Join Date: Jan 2006
Location: Tucson, AZ
Posts: 4,722
Either the return line is loose or you have a problem with the vapor line routing.
“Whatever story you're telling, it will be more interesting if, at the end you add, "and then everything burst into flames.”
― Brian P. Cleary, You Oughta Know By Now
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Old 07-17-2013, 12:08 PM
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Join Date: Apr 2013
Location: Miami, FL
Posts: 84
My 1967 230 has the same modification; Zeniths to Webers. The Zeniths had a fuel return-to-tank feature, but the Webers do not. The return-to-tank line was blocked off in the area behind the left front wheel.
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Old 07-17-2013, 04:06 PM
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Join Date: Feb 2007
Posts: 81
Thanks, men...the return line wasn't capped.

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