In dire straits, #4 fuel leak

[deano]

It may related to the accelerator pump lever underneath. In some cases, due to the position of the lever and roller (on the throttle shaft), it maybe high enough on the cam lobe to allow pressure to be applied to the pump rod, which then caused it to push raw fuel into the venturi. Berg made an adjustable cam lever to fix this problem. Usually, it is caused by the butterflies/shaft being open too much, which places the roller too high on the lever cam lobe. Make sense? Hope so.

[BeetleBug]

I would also check the oil. My guess is that it is flooded with gasoline. If your carb cant shut off the fuel it will continue pooring fuel down your intake channel and continue up the manifold causing the leak between the manifold and the head. It is a good thing that you noticed this now and not on the road, been there - done that.

Best rgs
BB

[Diederick/DVK]

Fixed it. It appeared that the extra tang on the new float (which serves no purpose IMO) hit the needle valve so that the proper tab couldn't close off the ball in the needle valve. Bend the tang and all is good now. The carbs stayed dry and the engine ran. So I dumped the oil. The fuel may however have deteriorated some gaskets. Bummer! So much for a clean engine...

Anyway, thanks for the suggestions. Much appreciated!

[Zach Gomulka]

YEAH!!

[deano]

I've also had a pair of IDAs that were badly worn, in which the accelerator pump rod bushings were worn (too much sand rail use), causing them to leak and stick! Had to re-size them to fix the problem.

[Jesse/DVK]

Let's finish this beetle this Sunday and take it for a spin Died!

[Diederick/DVK]

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