I found it! But I honestly don't know how.
Â
So today I bought the big magnet and a can of compressed air - I thought that might also be helpful. I used the air in impeller area and the sump, and dragged the magnet around the outsides. Since I didn't hear anything move, I expected nothing from it. But when I took another peek into the sump with my light, I spotted a ring-like shape in the oil remnants. I assumed it was a reflection - I have spent hours dragging a magnet through the sump - but who knows. So I took out the magnet-zip tie contraption, and it turned out to be the bloody washer.
Â
I honestly don't know if had been there all along, or if the big magnet and/or air did something, but I am very happy that I found it. I was already planning to call my dad (who, luckily, is a retired mechanic) to help me with the exhaust headers. I am not completely out of the woods yet, since two collars in the sump also got loose, but I'm sure I'll manage (it's fiddly, but I already got one of them back in).
Â
Thank you all very much for your help and suggestions!Â
Â
So today I bought the big magnet and a can of compressed air - I thought that might also be helpful. I used the air in impeller area and the sump, and dragged the magnet around the outsides. Since I didn't hear anything move, I expected nothing from it. But when I took another peek into the sump with my light, I spotted a ring-like shape in the oil remnants. I assumed it was a reflection - I have spent hours dragging a magnet through the sump - but who knows. So I took out the magnet-zip tie contraption, and it turned out to be the bloody washer.
Â
I honestly don't know if had been there all along, or if the big magnet and/or air did something, but I am very happy that I found it. I was already planning to call my dad (who, luckily, is a retired mechanic) to help me with the exhaust headers. I am not completely out of the woods yet, since two collars in the sump also got loose, but I'm sure I'll manage (it's fiddly, but I already got one of them back in).
Â
Thank you all very much for your help and suggestions!Â

