<html><body><div>I don't know if it was the bypass valve spring, but they did show me different size washers/shims they were using for some springs. They were the diameter of a silver dollar or more. Sorry but I'm just not technical enough on transmissions to field all these good questions and suggestions.</div><div class="x-apple-signature"><pre style="font-family: 'SFNSText','Helvetica Neue', Helvetica, sans-serif; font-size: 15px; white-space: pre-wrap; word-wrap: break-word;" data-mce-style="font-family: 'SFNSText','Helvetica Neue', Helvetica, sans-serif; font-size: 15px; white-space: pre-wrap; word-wrap: break-word;">I do appreciate all this info though and am forwarding to British Motorsports.<br><br>Thanks,<br><br>Rye<br><br><br><br></pre></div><div><br>On Jun 11, 2016, at 10:10 AM, ptegler <ptegler@verizon.net> wrote:<br><br></div><div><blockquote type="cite"><div class="msg-quote" bgcolor="#FFFFFF" text="#000000"><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" data-mce-href="mailto:hdrider570@att.net">hdrider570@att.net</a> wrote:<br></div><blockquote type="cite"><span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">When I had this problem with a J type OD, it was wear in the pump piston/bore. This pump use<span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">s no seals so I expect that your mechanics are talking about the accumulator piston(s). Basically when <span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">t</span>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> <span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">I expect that a worn drive pin in the piston could cause a similar problem by shortening the piston sweep.</span><br> <br> <span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: '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 <span face="Arial
Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">excessive losses some<span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">where such as bad piston seals etc.<br> <br> <span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">Edward Hamer<br> <span face="Arial Black" data-mce-style="font-family: 'Arial Black';" style="font-family: 'Arial Black';">Petaluma CA</span><br> </span></span></span></span></span></span> <br><fieldset class="mimeAttachmentHeader"></fieldset><br><pre>** <a class="moz-txt-link-abbreviated" href="mailto:triumphs@autox.team.net" data-mce-href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **
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</pre></blockquote><br><div class="moz-signature">-- <br> Paul Tegler <a class="moz-txt-link-abbreviated" href="mailto:ptegler@verizon.net" data-mce-href="mailto:ptegler@verizon.net">ptegler@verizon.net</a> <a class="moz-txt-link-abbreviated" href="http://www.teglerizer.com" data-mce-href="http://www.teglerizer.com">www.teglerizer.com</a></div><div class="_stretch"><span class="body-text-content"><br>** <a href="mailto:triumphs@autox.team.net" data-mce-href="mailto:triumphs@autox.team.net">triumphs@autox.team.net</a> **<br><br>Donate: <a href="http://www.team.net/donate.html" data-mce-href="http://www.team.net/donate.html">http://www.team.net/donate.html</a><br>Archive: <a href="http://www.team.net/archive" data-mce-href="http://www.team.net/archive">http://www.team.net/archive</a><br>Forums: <a href="http://www.team.net/forums" data-mce-href="http://www.team.net/forums">http://www.team.net/forums</a><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/triumphs/ryel@mac.com" data-mce-href="http://autox.team.net/mailman/options/triumphs/ryel@mac.com">http://autox.team.net/mailman/options/triumphs/ryel@mac.com</a><br></span></div></div></blockquote></div></body></html>