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Original Message
.020" to .060" is typical for hydraulic preload.
By Dave Shoe - 06/01/2003 2:14:30 AM; IP 216.243.176.34
What you want to do is get the rockers adjusted to tghe zero lash threshold. At that point you want to crank the adjuster nut down so the lifter is compressed about .040" or so below zero. This appears to be the center of the "live position" for hydraulic lifters.

It's reasonable to believe that some lifter manufacturers will have a different sweet spot, but on a recent spec I read, .020" to .060" was it.

The pusrods would be the same with a similar cam. If you go really wild on th cam, the "base circle" of the cam will shring and you may need to reassess your rocker geometry to determine what needs to be adjusted.

JMO,
Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=17371&Reply=17371><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17371" onclick="return false;">HYD. Lifter's and ADJ rocker's</a>&nbsp;-- <font color=#0000ff>Chad, <i>05/30/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17371', contentMargin: 60, icon: $('anchor17371') }); </script>  HYD. Lifter's and ADJ rocker's -- Chad, 05/30/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17394&Reply=17371><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17394" onclick="return false;">RE: HYD. Lifter's and ADJ rocker's</a>&nbsp;-- <font color=#0000ff>McQ, <i>05/31/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17394', contentMargin: 60, icon: $('anchor17394') }); </script>  RE: HYD. Lifter's and ADJ rocker's -- McQ, 05/31/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17395&Reply=17371><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17395" onclick="return false;">RE: HYD. Lifter's and ADJ rocker's</a>&nbsp;-- <font color=#0000ff>Chad, <i>05/31/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17395', contentMargin: 60, icon: $('anchor17395') }); </script>  RE: HYD. Lifter's and ADJ rocker's -- Chad, 05/31/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17399&Reply=17371><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17399" onclick="return false;">RE: HYD. Lifter's and ADJ rocker's</a>&nbsp;-- <font color=#0000ff>McQ, <i>06/01/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17399', contentMargin: 60, icon: $('anchor17399') }); </script>  RE: HYD. Lifter's and ADJ rocker's -- McQ, 06/01/2003
Collapse <b>.020" to .060" is typical for hydraulic preload.</b>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>06/01/2003</i></font>.020" to .060" is typical for hydraulic preload. -- Dave Shoe, 06/01/2003
 RE: lifter's -- Chad, 06/01/2003
Collapse <a href=../ForumFE/reply.aspx?ID=17415&Reply=17371><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor17415" onclick="return false;">RE: .020" to .060" is typical for hydraulic preload.</a>&nbsp;-- <font color=#0000ff>Geoff McNew, <i>06/02/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=17415', contentMargin: 60, icon: $('anchor17415') }); </script>  RE: .020" to .060" is typical for hydraulic preload. -- Geoff McNew, 06/02/2003
 Your way sounds best. -- Dave Shoe, 06/02/2003
 RE: basic set for solids too -- McQ, 06/02/2003
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