It's quite possible that the sound you're hearing is the piston hitting the head. When the rod bearing goes, the piston has a longer stroke. Therefore, the sound you hear is higher up in the engine than a rod bearing. I certainly wouldn't drive it. If that's what it is, you could ruin your head as well. I hope I'm wrong, since I have the same issue.
Quote:
Originally Posted by kerry
Doesn't sound like a rod bearing to me. It's not a deep enough sound. I don't know what it is but it also sounds higher up in the engine than a rod bearing.
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