Hello. I've done a fair bit of reading here and on the Moyer site regarding fuel delivery problems. I have some ideas about where I should go but thought I would throw out a query.
-Late model A4 in a '71 Ericson 29.
-Facet electronic fuel pump installed more than ten years ago.
-Fuel tank is above the motor and approx 5-6 feet away.
-New carburetor installed less than ten years ago.
-Last tune up done about one year ago.
-Main fuel filter changed within the last four months.
-Failure to turn on the raw water intake resulted in overheating (240?) last weekend.
Problem:
Engine starts easily and idles beautifully. Motoring out of the harbor this week, the engine started to sound like it was faltering. The temp appeared to be fluctuating (can't recall the high/low). Motor finally stopped but restarted immediately. We went sailing and had to restart several times on our way back into the harbor. At the dock, idling was great but while tied up and in forward the motor will run great up to approximately 1400 RPM and then quit abruptly. Pulling the choke out will keep it running for another ten seconds or so.
I intend to go through the whole system up to the carburetor, replacing the inline filter, fuel lines, valves possibly, assure that the main filter is properly seated and possibly add a priming bulb. I've read of the possibility of pulling air into the system from a tiny leak. I should probably add an inline fuel gauge to make sure that we are getting good push from the fuel pump too.
I know not an easy answer but thanks for any insight!
-Late model A4 in a '71 Ericson 29.
-Facet electronic fuel pump installed more than ten years ago.
-Fuel tank is above the motor and approx 5-6 feet away.
-New carburetor installed less than ten years ago.
-Last tune up done about one year ago.
-Main fuel filter changed within the last four months.
-Failure to turn on the raw water intake resulted in overheating (240?) last weekend.
Problem:
Engine starts easily and idles beautifully. Motoring out of the harbor this week, the engine started to sound like it was faltering. The temp appeared to be fluctuating (can't recall the high/low). Motor finally stopped but restarted immediately. We went sailing and had to restart several times on our way back into the harbor. At the dock, idling was great but while tied up and in forward the motor will run great up to approximately 1400 RPM and then quit abruptly. Pulling the choke out will keep it running for another ten seconds or so.
I intend to go through the whole system up to the carburetor, replacing the inline filter, fuel lines, valves possibly, assure that the main filter is properly seated and possibly add a priming bulb. I've read of the possibility of pulling air into the system from a tiny leak. I should probably add an inline fuel gauge to make sure that we are getting good push from the fuel pump too.
I know not an easy answer but thanks for any insight!
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