Originally Posted by petter5
Be sure to correctly size your fuel
lines and filters, using good quality material.
One thing I have seen several times is fuel tanks
with suction pipes threaded in the tank cover leaking air in the threads , can be extremely difficult to diagnose.
One thing that would not fix the system, but fix the symptoms is to mount a so called "Tiger loop" to remove the air from the fuel:
The works fine for boat engines as well :-)
I'm starting to suspect something like this.
We'll see. The next step is to obtain and fit the correct hose tails, and buy new sealant
. I'll check the sensor for cracks or air leaks
If that doesn't work and the same symptoms appear, then I'll splice in a piece of clear hose between the sensor and Racor
to see if there are any bubbles in the fuel.
If there are no bubbles there, then I'll move the clear hose to after the sensor.
If there are no bubbles there, then I'll move the clear hose to between the secondary filter and the pump.
If I can't find any bubbles anywhere, then I'll know it's because the system simply doesn't like the resistance of the sensor (which I feel is unlikely), in which case I'll add a Facel fuel pump
between the Racor
and the sensor.
Does that sound like a plan?