I've read all the posts about engine shutdowns in an effort to trouble shoot the shutdowns I've recently begun to experience, and feel mine are sufficiently different to warrent bringing them up here... so here goes:
I have recently been experiencing sudden engine shutdowns (flip of a switch type) that ONLY occur when I am motoring in choppy water with the boat pitching around. Immediately afterwards, I can restart the engine and it runs fine, but the problem repeats if I'm in choppy water. In calm, flat water, there are no shutdowns and it runs fine for an indefinite period. Prior to the shutdown, there is nothing to indicate an impending problem. Engine runs smoothly at 140 degrees, no smoke, no odd sounds. I can't find anything in the carburater that would block the needle valve (had that problem before), so I don't think it is that. I have not yet tried the jumper wires from the positive terminal on the alternater to the coil & fuel pump, but will attempt that this weekend. The only thing I can come up with right now is a short somewhere that occurs with the pitching/pounding of the boat, and my hope is that testing around with the jumpers will help me isolate the problem.
In April and May, I installed a new carburator, coil, electric ignition, ignition switch, alternator, distributor cap, rotor, wires, and plugs, among other things. It has run fine until now, and I've motored in some heavy stuff since doing all of this work. This problem has just surfaced.
Any ideas?
Thanks in advance.
John
I have recently been experiencing sudden engine shutdowns (flip of a switch type) that ONLY occur when I am motoring in choppy water with the boat pitching around. Immediately afterwards, I can restart the engine and it runs fine, but the problem repeats if I'm in choppy water. In calm, flat water, there are no shutdowns and it runs fine for an indefinite period. Prior to the shutdown, there is nothing to indicate an impending problem. Engine runs smoothly at 140 degrees, no smoke, no odd sounds. I can't find anything in the carburater that would block the needle valve (had that problem before), so I don't think it is that. I have not yet tried the jumper wires from the positive terminal on the alternater to the coil & fuel pump, but will attempt that this weekend. The only thing I can come up with right now is a short somewhere that occurs with the pitching/pounding of the boat, and my hope is that testing around with the jumpers will help me isolate the problem.
In April and May, I installed a new carburator, coil, electric ignition, ignition switch, alternator, distributor cap, rotor, wires, and plugs, among other things. It has run fine until now, and I've motored in some heavy stuff since doing all of this work. This problem has just surfaced.
Any ideas?
Thanks in advance.
John
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