Need Help- Drum sound on 6.0
I have been working on an 04 6.0 and after a month at the machine shop waiting for guides, I got everything together and when I fired it up, there is a "DRUM" sound coming from the intake. I did do a search but haven't found the real answer. What could this be? I looked at the rods and rockers and didn't see anything wrong. I do have to replace all the injector o-ring though, Could this be a problem? Was there any timing I needed to do. I was told i didn't need to move the crankshaft, but im reading that I did. Any thoughts?