Carburetor leaking

[Francois007]

Just took my 1967 911 for a long needed drive for approx 200 miles, The car ran beautifully the whole trip. when I got home the following morning I noticed the garage smelled like gas. After investigation I noticed a puddle of fuel on both sides underneath both middle barrels as well as around the manifold. Could it be a stuck float or excess fuel pressure?

[Locker537]

I'd check the accelerator pump covers. They are a common leak.

But also fuel hoses / rails.

Clean it all up. Run it briefly (safety first - have a fire extinguisher). Or at least run the fuel pump. Might be very obvious.

[Francois007]

Originally Posted by Locker537

I'd check the accelerator pump covers. They are a common leak.

But also fuel hoses / rails.

Clean it all up. Run it briefly (safety first - have a fire extinguisher). Or at least run the fuel pump. Might be very obvious.

I cleaned up all the fuel and ran the fuel pump and didn’t notice any leaking as soon as I fired up the engine I noticed a significant constant dripping of fuel coming from the accelerator pump cover. How would I go about addressing this issue? Thank you for the advice.

[Locker537]

Source a carb rebuilt kit that includes the accelerator pump diaphragms. Pelican likely sells them, as do other places.

The pump cover and body can get warped over time, or because they were over tightened.

You can check if they are flat by placing them on a piece of glass, granite, or surface plate that you know is pretty flat. Hold it up to the light or shine a light behind it and you may see gaps.

Sand them flat on the same piece of glass or granite using fine grit sandpaper. I think I used 400 grit.

You can use a permanent marker to "paint" the sealing surface before sanding. Work slowly and the marker will be removed on the high spots. Sand until no marker remains, but check your work often.

[Francois007]

Originally Posted by Locker537

Source a carb rebuilt kit that includes the accelerator pump diaphragms. Pelican likely sells them, as do other places.

The pump cover and body can get warped over time, or because they were over tightened.

You can check if they are flat by placing them on a piece of glass, granite, or surface plate that you know if pretty flat. Hold it up to the light or shine a light behind it and you may see gaps.

Sand them flat on the same piece of glass or granite using fine grit sandpaper. I think I used 400 grit.

You can use a permanent marker to "paint" the sealing surface before sanding. Work slowly and the marker will be removed on the high spots. Sand until no marker remains, but check your work often.

Thank you for the help going to order the carb kit and hopefully the issue is resolved.