Situation / Problem:
1st engine start/test:
The left carb was overflowing before cranking the engine, I popped the float bowls to inspect the floats. The engine ran fine afterwards.
2nd engine test
2 weeks later we experienced the same problem on the right carby. We also noticed a lot of debris of black and red particles in both floatbowls post the engine run.
Test3:
A week later I prepared for the third engine run and the engine only fired on the left cylinders, both ignition circuits A and B were working in isolation. After popping the float bowl again the engine fired on all cylinders. A lot of red particle debris continued to accumulate in the float bowls.
The engine has a logbook entry that the pressure side fuel hose was replaced at some point before I received it in Australia (ASB 912-061).
Gascolator screen has no debris. Finally flushed the fuel lines by taking out the banjos at the carburettors and ran the electric fuel pump. After 5 liters of flushing I still have primarily red particles coming out. Looks like firesleeve type particles / debris.
Could the problem be related to the ASB 061 fuel hose replacement?
I have no idea where this stuff is coming from, gasc screen is fine, so can only be the hose from gasc to mech fuel pump or hose to clamp block / hose to carbys.
Appreciate any thoughts / experiences from other builders.
Thanks
Steffen
1st engine start/test:
The left carb was overflowing before cranking the engine, I popped the float bowls to inspect the floats. The engine ran fine afterwards.
2nd engine test
2 weeks later we experienced the same problem on the right carby. We also noticed a lot of debris of black and red particles in both floatbowls post the engine run.
Test3:
A week later I prepared for the third engine run and the engine only fired on the left cylinders, both ignition circuits A and B were working in isolation. After popping the float bowl again the engine fired on all cylinders. A lot of red particle debris continued to accumulate in the float bowls.
The engine has a logbook entry that the pressure side fuel hose was replaced at some point before I received it in Australia (ASB 912-061).
Gascolator screen has no debris. Finally flushed the fuel lines by taking out the banjos at the carburettors and ran the electric fuel pump. After 5 liters of flushing I still have primarily red particles coming out. Looks like firesleeve type particles / debris.
Could the problem be related to the ASB 061 fuel hose replacement?
I have no idea where this stuff is coming from, gasc screen is fine, so can only be the hose from gasc to mech fuel pump or hose to clamp block / hose to carbys.
Appreciate any thoughts / experiences from other builders.
Thanks
Steffen