location of fuel tank vent
My A-4 is having trouble running at high rpm, and I'm pretty sure it's from being starved of fuel. I've gone through the sailnet search engine, and I'm thinking that the problem may be the result of an occlusion in the fuel vent. It runs fine for a half an hour or so, and then it loses rpm and finally dies. I restart, but as soon as I throttle up, it dies again. Runs fine, however, at idle speed. I thought it was possibly water in the fuel, but have addressed that side of the equation. Of course it could be a spent fuel pump. I installed a clear plastic fuel filter downstream of the pump, and there's only a tiny bit of fuel at the bottom. But I'm thinking this could be the result of an occluded vent. Soliciting for suggestions. Final question: Where, exactly is the vent?