engine failure questions
#38
#40
well I have an idea to try and further isolate the location of the problem. I will record the knocking sound and compare it to the idle speed to see if the knock is in the lower end, the cam, or timing chains. I have to put the valve cover back on and put a few things back together first. i'm glad I didn't start pulling the head!
if idle rpms are 650 that's 10.8Hz. If the knock is the same frequency, it's in the lower end. if it's around 5.4Hz, it should have something to do with the cam or a rocker arm. If it's lower than that I would suspect a timing chain. Hopefully this works. I'll let you know what I find.
if idle rpms are 650 that's 10.8Hz. If the knock is the same frequency, it's in the lower end. if it's around 5.4Hz, it should have something to do with the cam or a rocker arm. If it's lower than that I would suspect a timing chain. Hopefully this works. I'll let you know what I find.
Last edited by MetalDrgn; 06-06-2009 at 02:16 PM.