Engine knock above 2k - Saab 9000 Bulletin Board - Saabnet.com
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Engine knock above 2k
Posted by Eric [Email] (more from Eric) on Tue, 28 Jul 2009 03:47:43
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So I just finished replacing ym rod bearings (big end) becasue I was getting what sounded like a rod knock. I had this same noise on the original engine and when the rod came through the block, my thoughts were confirmed. So to prevent that from ahppening again I replaced the rod bearings, with the engine still installed. Not horrible to do, but getting the oil pan out required the enigne to be jacked up pretty high. Anyways, the knock is still there. The crank looked in good shape, just a slight polish on cylinder 3's journal. That bearing did show signs of excessive wear. SO now I am not sure what to do. I swore it was the rod bearing, had symptoms just like one,ie; knock on partial to almost full load and as I let off, quiet at idle. Does a worn balance shaft subsystem casue a similar sound? Don't know what to do.
posted by 71.232.80...
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