azbanks

When water testing headers, do the bellows normally leak?
Where else would/could you see water leaking out if the headers are cracked?

Techno Duck

Typically the cracks will be on the #2 and #3 header at the Y-Joint and flanges to the head. The #1 and #4 will likely be just around the flanges, but can get it around the joint also.

This is what the original 2-3 header looked line inside that i pulled off my car a few years ago. I knew they had leaks but didnt know it was this bad. Almost a 270* crack around the y-joint!



Common cracks around the flanges..

IanM

A good reason to replace worn motor mounts