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Original Message
FE Noise
By dave - 04/23/2004 10:33:02 PM; IP 68.198.129.110
This is embarrassing but here it goes. I have been trying to locate the source of a noise in my 428. It sounds like it is comming from the intake manifold and knowing how sounds can travel thru an engine I knew the only way to make any progress would be to start checking the most likely soources. I pulled the valve covers and found one rocker that felt like the hyd. lifter had collapsed. I also felt a rough spot when rotating that paricular rocker by hand. I removed the shaft assy. I pulled the F-427 intake off and pulled all the lifters which looked like they had not even 1K on em and none were collapsed. I replaced em anyway and installed two new rocker shaft assy from clevite. Bolt it all back together and still have the noise. While looking thru the breather hole on the L/H valve cover I noticed it appeared that the pushrods were hitting the holes in the intake they pass thru. I have the 11/32 dia. rods in the engine. I pulled them out visual insp. em and none seem bent. I replaced them with 3/8 dia pushrods and when I re-installed the rocker shaft checked for interference all looked good. Start the engine and the noise is still there! Now as I look at the pushrods(thru the breather access) with the engine running it appears that the pushrod has somehow migrated to a spot where it looks like its hitting the passages in the intake. I pput about 1k miles on this engine with the E-bock manifold with out any problem......ANY thoughts ...the noise sounds like it is has a bit of a hollow tone to it and seems to keep pace with the valve train mvmt
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Collapse <b>FE Noise</b>&nbsp;-- <font color=#0000ff>dave, <i>04/23/2004</i></font>FE Noise -- dave, 04/23/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21147&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21147" onclick="return false;">So, the noise started after ~1K miles on rebuild? [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>04/24/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21147', contentMargin: 60, icon: $('anchor21147') }); </script>  So, the noise started after ~1K miles on rebuild? [n/m] -- Mr F, 04/24/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21177&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21177" onclick="return false;">RE: So, the noise started after ~1K miles on rebuild? [n/m]</a>&nbsp;-- <font color=#0000ff>dave, <i>04/26/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21177', contentMargin: 60, icon: $('anchor21177') }); </script>  RE: So, the noise started after ~1K miles on rebuild? [n/m] -- dave, 04/26/2004
 RE: So, the noise started after ~1K miles on rebuild? [n/m] -- giacamo, 05/01/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21338&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21338" onclick="return false;">RE: So, the noise started after ~1K miles on rebuild? [n/m]</a>&nbsp;-- <font color=#0000ff>dave, <i>05/04/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21338', contentMargin: 60, icon: $('anchor21338') }); </script>  RE: So, the noise started after ~1K miles on rebuild? [n/m] -- dave, 05/04/2004
 Dave, are you bumping into the Forum's text-limit? [n/m] -- Mr F, 05/09/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21226&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21226" onclick="return false;">RE: FE Noise</a>&nbsp;-- <font color=#0000ff>Jay, <i>04/29/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21226', contentMargin: 60, icon: $('anchor21226') }); </script>  RE: FE Noise -- Jay, 04/29/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21253&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21253" onclick="return false;">RE: FE Noise</a>&nbsp;-- <font color=#0000ff>David, <i>05/02/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21253', contentMargin: 60, icon: $('anchor21253') }); </script>  RE: FE Noise -- David, 05/02/2004
Collapse <a href=../ForumFE/reply.aspx?ID=21309&Reply=21134><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor21309" onclick="return false;">I agree with David</a>&nbsp;-- <font color=#0000ff>John, <i>05/03/2004</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=21309', contentMargin: 60, icon: $('anchor21309') }); </script>  I agree with David -- John, 05/03/2004
  knocking -- Davy Gurley, 05/08/2004
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