If we are suspecting an air ingress leak into the fuel system, a helpful tool is a low-pressure electric fuel pump spliced into the fuel line just upstream of the fuel filter. Watch if the problem clears up. May also expose the leak by dripping fuel out.
Low pressure important because the dynamic timing depends on the pressure differential before/after the IP internal centrifugal lift pump, so don't want to raise pre-pressure too much. Also don't want to run the risk of blowing out some seals.
__________________
1985 744 gle d24t
1985 745 gle d24t
|