390 rod knock noise, have oil pan off
And now what should I check for? I moved all the rods on the crank and they easily move back and forth, but don't seem damaged. I don't see anything obvious at the piston end. There was no metal shavings in the oil pan. My pan was pretty mashed at the oil pump end from some yahoo using that as a jack point.
I didn't have this knock when i got the car. The automatic never kicked down, so one day I adjusted it tighter and went out to make it kick down and see where it would upshift, but it never did. I think I hit 5000 rpm before backing off. When I got home, I noticed the knocking sound at idle and rapid knocking when letting off the gas, when just standing over the engine. I used a hose to try and isolate the noise and it seemed like it was in the pan. I believe some time in the past I took the valve covers off and checked the valvetrain. I've got a few cars, so not sure about that one.