Funny how car maintenance works

[StirCrazy]

Originally Posted by dsaundry

Have you determined if it is bottom end knock or top end? Bottom end might be the early indication of a rod starting to let go. You say that the timing does drop out when it is knocking which is normal as the knock sensor would cause it to drop. It might also be a valve issue as well. As big of a pain as it is, its time to pull the heads and inspect..I would really like to hear it first...

Sorry dont mean to hijack a thread here....

Ya, I thought it was the knock sensor so I wasn't to worried about that thought I would mention it though.
If I had to guess, I would say lower end, as it is slower than engine speed, I thought of a rod but it doesn't make sense, as it is not consistant enough. If it was a rod going under load then it would do it pretty much every time you loaded it up, not only once in a blue moon, oh and if you floor it when it is knocking it goes away (forgot to mention that) I have been avoiding the pulling the heads part as I am thinking that way myself, but it is a lot for a car we are getting rid of and isn't worth anything .

Steve