George, If the float or needle valve are failing to shut off the fuel flow properly, then the fuel level in the float chamber could be too high. If the needle valve sticks open then fuel could continue to be pumped into the float chamber even when it is full.
As you say, the jet is gravity fed from the float chamber. Therefore, the surface of the fuel in the jet should be level with the surface of fuel in the float chamber (which is why some SUs, such as those on later MGBs, had a float chamber that surrounded the jet, so that the fuel level in the jet would not change under braking, accelerating and cornering). If the float chamber is too full, the level of fuel in the jet will be too high. If fuel is being pumped into an already full float chamber, it has to go somewhere; the vent hole in the top of the float chamber is pretty small, so much of it will be pumped up through the jet. I hope I've cleared your confusion! Richard & Daffy ---------------------------------------------------------------------- Important Notice: The information in this email is confidential and may be legally-privileged. If you have reason to believe you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it is prohibited and may be unlawful and you are requested to contact the sender urgently and dispose of this email -----------------------------------------------------------exp. /// [EMAIL PROTECTED] mailing list /// Send admin requests to [EMAIL PROTECTED] /// or try http://www.team.net/cgi-bin/majorcool /// Archives at http://www.team.net/archive /// Send list postings to [EMAIL PROTECTED] /// Edit your replies! If they include this trailer, they will NOT be sent.
