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<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Ok, Im getting Cranky!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>The crank that was in my 2056 was a 10 under, thats fine,
but for some reason despite my measuring .003 to .0035 main bearing clearances,
it started <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>to sieze when it got warmed up with the break in oil in
there, what is additionally interesting is that the sacrificial bearing shells
didnt do their work very well,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>you can run your fingernail across the journals and feel
some light scoring.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>The crank for this build is my spare, its seen alot of use
and despite having 2 rod journals shells well into the copper the machine shop
found it in the middle of the <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>spec and just polished it, and it does, and did look good,
except... the new bearing shells on it are a bit loose.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>These are old stock Repco bearings, and im finding between
.0045 for the split one to .005 for 1 and 3. Now im measuring this with a
mic and bore gauge, using the mic's <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>measurement for journal size as the 0 point for the bore
gauge, so it should be accurate. Bearings all torqued into the case.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>SO...<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>im kinda porked... the wear limit is .006 or so, so I should
be around .002 or 3, and the bearings are what the bearings are, the crank
SHOULD be in spec, if the shop measured it properly<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>and since they have better equipment that I do....<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Should I have it taken down 10? well.. they say its in
spec NOW... and 10 under didnt do wonders for the hardness layer on the last
crank and since 2L Porsche cranks dont grow on trees... risk it<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>or run the .005 with the stock journals and stock hardness
layer intact? after the incident with the break in oil im inclined to
keep things on the loose side of ideal but past builds have had<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>oil pressure issues so its sensitive to that, although the
previous build had NO pressure issues.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>What to do? What are people finding the main bearing
clearances to be out there in stock size land? they are sending me
a set of silverlines to try, but they arent the quality of the Repco's.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'>Keith<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face=Arial><span style='font-size:12.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'>Topnotch
Restorations<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'><a
href="mailto:topnotch@nycap.rr.com">topnotch@nycap.rr.com</a><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'><a
href="http://www.topnotchresto.com">http://www.topnotchresto.com</a><o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'>71
Squareback “Hothe”<br>
65 Notchback “El Baja Rojo”<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'>93
RX7 “Redstur”<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'>13
Subaru Outback "Blendin"<o:p></o:p></span></font></p>
<p class=MsoAutoSig><font size=2 face=Calibri><span style='font-size:11.0pt'> </span><o:p></o:p></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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