<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=utf-8">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I doubt that your .030 squish would cause the rattling as you
describe. The deflection caused by the crank, rod and piston in order to hit
the head at .030 would be way up in the rpm’s like 8000!<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Did the rattling go away after all the parts warmed up and oil
was well disbursed or is it still rattling? My first guess would be either the
engine was not pre-oiled or you have loose piston pin bushings…. Were the rods
rebuilt with new bushings fitted to about .0003? <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Steve Yott<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Fot
[mailto:fot-bounces@autox.team.net] <b>On Behalf Of </b>Robert Lang<br>
<b>Sent:</b> Wednesday, May 25, 2016 11:29 AM<br>
<b>To:</b> FOT List<br>
<b>Subject:</b> Re: [Fot] TR6 Piston / Head Clearance<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<div>
<div>
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>Hi,<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4039">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'><o:p> </o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4040">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>Where I was going with the query was this: I had a late block
"decked" with the intent of making the deck flat. The machinist took
of .032 to accomplish the goal. With a head gasket installed and the head
torqued, the clearance in the squish area is .030.<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4041">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>I had initially wanted only about .025 removed, but we had to
shave an extra .007 to get rid of the fire ring cuts.<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4042">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>On initial startup, the motor sounded like it might be
"rattling" and I'm trying to figure out why.<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4043">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>When I used a stethescope on the block, everything sounds okay -
no rapping and the valve train sounds "normal" and there were no
weird sounds coming from the crank.<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4055">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>I guess where I'm going with this is: if piston / head clearance
is too tight, I'll see some sort of indication on the piston, right?<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_4056">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>TIA for any sage advice.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>This is my first experience "decking" a block. I'd like
to get it right, I don't have the resources to start a new block from scratch.<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>Regards,<o:p></o:p></span></p>
</div>
<div>
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'>Bob Lang<o:p></o:p></span></p>
</div>
<div id="yui_3_16_0_ym19_1_1464192999183_3788">
<p class=MsoNormal style='background:white'><span style='font-family:"Helvetica","sans-serif";
color:black'><o:p> </o:p></span></p>
</div>
</div>
</div>
</body>
</html>