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<p>the bypass valve spring can be replaced/shimmed to adjust
pressure as needed.</p>
<p>ptegler<br>
</p>
<br>
<div class="moz-cite-prefix">On 6/10/2016 9:04 PM,
<a class="moz-txt-link-abbreviated" href="mailto:hdrider570@att.net">hdrider570@att.net</a> wrote:<br>
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<blockquote cite="mid:575B63A8.90903@att.net" type="cite">
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<font face="Arial Black">When I had this problem with a J type OD,
it was wear in the pump piston/bore. This pump use<font
face="Arial Black">s no seals so I expect that your mechanics
are talking about the accumulator piston(s). Basically when <font
face="Arial Black">t</font>he piston/bore wears the
clearances increase which allows oil to bypass the piston
resulting in lower pressure. One thing that I noticed was
that the slippage was more pronounced once the OD warmed up
thus reducing the viscosity of the oil.<br>
<br>
<font face="Arial Black">I expect that a worn drive pin in the
piston could cause a similar problem by shortening the
piston sweep.</font><br>
<br>
<font face="Arial Black">Bottom line is if you are not getting
enough oil pressure, it is a hydraulic problem which is
either not enough supply (pump wear?) or <font face="Arial
Black">excessive losses some<font face="Arial Black">where
such as bad piston seals etc.<br>
<br>
<font face="Arial Black">Edward Hamer<br>
<font face="Arial Black">Petaluma CA</font><br>
</font></font></font></font></font></font> <br>
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<div class="moz-signature">-- <br>
Paul Tegler
<a class="moz-txt-link-abbreviated" href="mailto:ptegler@verizon.net">ptegler@verizon.net</a>
<a class="moz-txt-link-abbreviated" href="http://www.teglerizer.com">www.teglerizer.com</a>
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