Cannot Figure out this Engine Noise!!!
Thread Starter
Pro
Joined: Aug 2010
Posts: 578
Likes: 0
From: Texarkana Ar
Cannot Figure out this Engine Noise!!!
Just had an engine built *408 stroker / 4'' crank, eagle h beam rods, JE turbo pistons , bullet reverse duration turbo cam, 6.0 heads. All professinally built and put together except I installed the pushrods/rocker arms/ clutch/ oil pump,pickuptube, and pan. And from the first start up there is this deep knocking sound. it not a fast ticking or clattering sound. I could feel the knock when I placed my hand on the oil pan. The engine Idles and revs up fine, but when accelerating the knock does get fast with the rpms. So im not sure if maybe somehow I could have not installed something right? maybe the crank could be hitting the oil pan trey?( yes I put the washers inbetween the trey and bolts) Or maybe a lifter has failed? But i wouldnt think you could feel a lifter from the oil pan? Not sure if maybe the pickup tube could be getting hit? I got plenty of oil pressure. Not much of a way to figure it out without having to start tearing bits and peices off untill I find it. Anyone have any experience with strange knocks?
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
Just had an engine built *408 stroker / 4'' crank, eagle h beam rods, JE turbo pistons , bullet reverse duration turbo cam, 6.0 heads. All professinally built and put together except I installed the pushrods/rocker arms/ clutch/ oil pump,pickuptube, and pan. And from the first start up there is this deep knocking sound. it not a fast ticking or clattering sound. I could feel the knock when I placed my hand on the oil pan. The engine Idles and revs up fine, but when accelerating the knock does get fast with the rpms. So im not sure if maybe somehow I could have not installed something right? maybe the crank could be hitting the oil pan trey?( yes I put the washers inbetween the trey and bolts) Or maybe a lifter has failed? But i wouldnt think you could feel a lifter from the oil pan? Not sure if maybe the pickup tube could be getting hit? I got plenty of oil pressure. Not much of a way to figure it out without having to start tearing bits and peices off untill I find it. Anyone have any experience with strange knocks?
I would start by pulling all the plugs and barring over and see if you feel/hear something.
Tech Contributor
Joined: May 2008
Posts: 2,843
Likes: 16
From: Howell Michigan
St. Jude Donor '09-'10-'11
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Melting Slicks
Joined: Jun 2002
Posts: 2,246
Likes: 66
From: Middletown CT
Was the block clearanced for the stroker kit?
Read here.
http://forums.corvetteforum.com/c5-t...ng-center.html
Read here.
http://forums.corvetteforum.com/c5-t...ng-center.html