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RE: need advice on 428 valve train noise!
By Will - 02/05/2001 12:35:51 PM; IP 24.162.190.33
Stanley gives good advice. You shouldn't be able to wiggle the pushrod when the cam is on the base. You might be able to spin the pushrod, but it should be difficult.

If there's excess play, the lifter is likely collapsed. You may have other problems, though. I don't know what all the possibilities are, but you could have a worn cam, bent pushrod, gunk in the lifter (not allowing it to pump up), or possibly something worn under the valve cover (shaft, rocker, valve). The bottom line is that the lifter is supposed to take up the extra play. If it isn't, either it isn't pumping up, or there is too much slack.

I disagree about Stanley's valvetrain comment. The valvetrain is probably the weakest link on an FE, but it only comes up when you run a big cam with stiff springs. Even then, it's the rockershaft that breaks, not the lifters.

One last thing. I run a solid cam, but I've heard those that run hydraulics say that they use adjustable rockers on their engines. That way, they can adjust in the proper amount of preload.
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Collapse <a href=../ForumFE/reply.aspx?ID=4591&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4591" onclick="return false;">need advice on 428 valve train noise!</a>&nbsp;-- <font color=#0000ff>dale large, <i>02/04/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4591', contentMargin: 60, icon: $('anchor4591') }); </script>  need advice on 428 valve train noise! -- dale large, 02/04/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4594&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4594" onclick="return false;">RE: need advice on 428 valve train noise!</a>&nbsp;-- <font color=#0000ff>Stanley Superior, <i>02/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4594', contentMargin: 60, icon: $('anchor4594') }); </script>  RE: need advice on 428 valve train noise! -- Stanley Superior, 02/05/2001
 RE: I have to disagree with the nortorious part! -- RC Moser, 02/05/2001
 FEs also notorious for making lots of power!n/m -- Alan Casida, 02/05/2001
 RE:thanks guys on info -- dale large, 02/05/2001
Collapse <b>RE: need advice on 428 valve train noise!</b>&nbsp;-- <font color=#0000ff>Will, <i>02/05/2001</i></font>RE: need advice on 428 valve train noise! -- Will, 02/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4599&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4599" onclick="return false;">RE: need advice on 428 valve train noise!</a>&nbsp;-- <font color=#0000ff>RC Moser, <i>02/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4599', contentMargin: 60, icon: $('anchor4599') }); </script>  RE: need advice on 428 valve train noise! -- RC Moser, 02/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4601&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4601" onclick="return false;">RE: need advice on 428 valve train noise!</a>&nbsp;-- <font color=#0000ff>Will, <i>02/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4601', contentMargin: 60, icon: $('anchor4601') }); </script>  RE: need advice on 428 valve train noise! -- Will, 02/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4603&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4603" onclick="return false;">RE: need advice on 428 valve train noise!</a>&nbsp;-- <font color=#0000ff>RC Moser, <i>02/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4603', contentMargin: 60, icon: $('anchor4603') }); </script>  RE: need advice on 428 valve train noise! -- RC Moser, 02/05/2001
 RE: need advice on 428 valve train noise! -- Will, 02/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4607&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4607" onclick="return false;">More about noise, valvetrain or otherwise... (Was:RE:need advice)</a>&nbsp;-- <font color=#0000ff>Mr F, <i>02/05/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4607', contentMargin: 60, icon: $('anchor4607') }); </script>  More about noise, valvetrain or otherwise... (Was:RE:need advice) -- Mr F, 02/05/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4629&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4629" onclick="return false;">RE: mean we wasn't maken enough noise!</a>&nbsp;-- <font color=#0000ff>RC Moser, <i>02/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4629', contentMargin: 60, icon: $('anchor4629') }); </script>  RE: mean we wasn't maken enough noise! -- RC Moser, 02/06/2001
Collapse <a href=../ForumFE/reply.aspx?ID=4630&Reply=4591><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor4630" onclick="return false;">RE: mean we wasn't maken enough noise!</a>&nbsp;-- <font color=#0000ff>Mr F, <i>02/06/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=4630', contentMargin: 60, icon: $('anchor4630') }); </script>  RE: mean we wasn't maken enough noise! -- Mr F, 02/06/2001
 RE: mean we wasn't maken enough noise! -- RC Moser, 02/06/2001
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