6.4 "double" Knocking?

BlackSheep5 · Jul 30, 2015

Anyone ever hear a 6.4 knock like this?

https://youtu.be/GHGHeB1iSTY

Radioflyer · Jul 30, 2015

Don't run it, take it in and start tearing it down. Sounds like valve train or a really bad knock deep within. Either way, at least a full top end job would be wise.

BlackSheep5 · Jul 30, 2015

It just had all rockers, pushrods and valve bridges replaced in April 2015, started this 2 days ago.

Sounds like this one but louder.

https://youtu.be/Z9lACJE8K2c

Radioflyer · Jul 30, 2015

BlackSheep5 said:
It just had all rockers, pushrods and valve bridges replaced in April 2015, started this 2 days ago.

Sounds like this one but louder.

https://youtu.be/Z9lACJE8K2c

I'd take it back to where it was worked on and see what's going on.