Jimboscr
Well Known Member
I have just done a fuel pump test and there is very little fuel being delivered by the electric fuel pump. It makes all of the right noises and after a couple of seconds sounds like it is loading up, and fuel is flowing out, but the amount of fuel being delivered is way below what is required and when I put my finger over the out flow I can easily hold it there as there is no pressure behind it.
I have sucked fuel through the system so I know there is fuel going through the fuel selector. However there seems to be a lot of bubbles. If I have an air lock somewhere how do I clear it?
My system is for a fuel injected engine. I have an Andair fuel selector and an Andair fuel pump and filter. The fuel comes from the chosen tank, through the selector and into the fuel filter. It then goes into the pump and on to the engine. After the fuel pump there is a "T" piece connected to a pipe with a non return valve which directs any excess fuel flow back to a point below the fuel selector, creating a circular flow for this excess fuel.
I would post a diagram of my set up, however it is in a word Document and I have no idea how to post it here. (I have enough trouble trying to post a picture)
I am open to the possibility I may have a design flaw in my system. For example should I have the pump before the filter rather than after?
Cheers
Jim
I have sucked fuel through the system so I know there is fuel going through the fuel selector. However there seems to be a lot of bubbles. If I have an air lock somewhere how do I clear it?
My system is for a fuel injected engine. I have an Andair fuel selector and an Andair fuel pump and filter. The fuel comes from the chosen tank, through the selector and into the fuel filter. It then goes into the pump and on to the engine. After the fuel pump there is a "T" piece connected to a pipe with a non return valve which directs any excess fuel flow back to a point below the fuel selector, creating a circular flow for this excess fuel.
I would post a diagram of my set up, however it is in a word Document and I have no idea how to post it here. (I have enough trouble trying to post a picture)
I am open to the possibility I may have a design flaw in my system. For example should I have the pump before the filter rather than after?
Cheers
Jim