Leak Down Test On My New 418 Need Help?

yellow rose said
All this nonsense about the rings not being seated is just that. Nonsense.

The rings should have been in by the first time it hit running temp of before.

AJ is correct...where is the air going?

Anytime you have a dipstick blowing out you got ring trouble. IMHO, if your rings ain't in by now, you can't fix it unless you take it apart.

I wouldn't say it's complete nonsense. I've seen plenty of engines with a bad hone job or ring swap burn oil and have lots of blow by for a few thousand miles before it gets better.