Knock at idle

[Joe in NY]

The previous owner could have put high viscosity oil in to mask the noise. Cheap and dirty trick that works on all motors. Put a heavy oil in and you can make a worn out old 350 sound likes it's purring away and had a easy life.

 

[Number4]

A spun bearing should be producing metal glitter like flakes in the oil.

 

[CopenGrizz01]

If it is a spun bearing would there be metal flakes/glitter in about 500 miles? I'll do another oil change then just to be sure. But I didn't see any glitter or flakes or anything in this oil. But the oil was pretty clean like it might have been changed not to long ago.

 

[Number4]

Any update?

My morning knock was a lot louder today. When I give it more gas, the knock delays its increase.
I put it in drive and the knock went away.

Wonder if it isn't a TC issue.