I have a high oil pressure problem. The Lycoming D2G had about 40 hours on when all of a sudden i noticed the pressure was over the red line. It had been perfectly good before this.
My first thought was that it could be a faulty guage, or sender. The electronic sender is in the top of the engine.
I have removed the oil pressure valve and it appeared to be perfectly good.
I poked a piece of plastic pipe down the opening from the relief valve to the sump and it felt as if I was touching solid metal, with no trace of any dirty oil when I removed it.
Running the engine I still have the high pressure. I unscrewed the adjustment in stages, as far as about 4 turns and still no change in the pressure. I don't want to go too far and get no pressure, and anyway as it was OK as set from the factory I cannot see that pressure should increase. As the pressure guage thread has developed a slight leak, I am tending to discount the faulty guage theory.
Does anyone know what is at the base of the return line? Is there a right angle bend?
It looks as if I will have to remove the sump, and I would like to avoid that.
Anyone have any ideas about what I should do?
My first thought was that it could be a faulty guage, or sender. The electronic sender is in the top of the engine.
I have removed the oil pressure valve and it appeared to be perfectly good.
I poked a piece of plastic pipe down the opening from the relief valve to the sump and it felt as if I was touching solid metal, with no trace of any dirty oil when I removed it.
Running the engine I still have the high pressure. I unscrewed the adjustment in stages, as far as about 4 turns and still no change in the pressure. I don't want to go too far and get no pressure, and anyway as it was OK as set from the factory I cannot see that pressure should increase. As the pressure guage thread has developed a slight leak, I am tending to discount the faulty guage theory.
Does anyone know what is at the base of the return line? Is there a right angle bend?
It looks as if I will have to remove the sump, and I would like to avoid that.
Anyone have any ideas about what I should do?
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