29-08-2024, 01:23 PM
Hi All
A friend recently commented that the fuel pipe from gravity tank to the SU carburettor should be routed so that it enters the float chamber from the front of the car. He couldn’t tell me why although I respect his vast knowledge of Austin Sevens.
So I rerouted the pipe down under the carb and up to a banjo union. I had to do this as there was no room to run it around the carb. Since then I’ve had problems with what seems like fuel starvation on steep hills and when I put my foot down. I think this may be down to possible vaporisation in the pipe.
Can anyone confirm my friend’s idea that the pipe should enter the carb from the front of the car and also confirm my suspicions that a loop down and up might cause vapourisation?
Cheers
Howard
A friend recently commented that the fuel pipe from gravity tank to the SU carburettor should be routed so that it enters the float chamber from the front of the car. He couldn’t tell me why although I respect his vast knowledge of Austin Sevens.
So I rerouted the pipe down under the carb and up to a banjo union. I had to do this as there was no room to run it around the carb. Since then I’ve had problems with what seems like fuel starvation on steep hills and when I put my foot down. I think this may be down to possible vaporisation in the pipe.
Can anyone confirm my friend’s idea that the pipe should enter the carb from the front of the car and also confirm my suspicions that a loop down and up might cause vapourisation?
Cheers
Howard