<div dir="auto"><div>Sorry I neglected to copy the list.</div><div dir="auto">On 2x BJ8 have upgraded the OD hydraulics including new accumulator main spring O ring piston and the NR and operating valve balls and springs as a package from OD Spares in UK. Both cars now have pressure over 500 psi - a non calibrated gauge I will admit to. Really do prefer the O ring style piston. BTW this piston has a slightly larger diameter of 1.196 compared to the 1 1/8 per original. So you have to replace the accumulator as well.</div><div dir="auto">rg</div><div dir="auto"><br><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>From: <strong class="gmail_sendername" dir="auto">Roger Grace</strong> <span dir="auto"><<a href="mailto:roggrace@telus.net">roggrace@telus.net</a>></span><br>Date: Mon., Aug. 7, 2023, 8:43 p.m.<br>Subject: Re: [Healeys] Overdrive pressures<br>To: David Wirken <<a href="mailto:dmw@wirkenphoto.com">dmw@wirkenphoto.com</a>><br></div><br><br><div dir="ltr"><div>No !</div><div>Suspect that your replacement piston uses an O ring instead of the old sleeve rings. That, together with a new spring usually ups the pressure. Is it engaging too quickly with a jolt ?<br></div><div>rg<br></div></div><div id="m_5857095237910007045DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br><table style="border-top:1px solid #d3d4de"><tbody><tr><td style="width:55px;padding-top:13px"><a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank" rel="noreferrer"><img src="https://s-install.avcdn.net/ipm/preview/icons/icon-envelope-tick-green-avg-v1.png" alt="" width="46" height="29" style="width:46px;height:29px"></a></td><td style="width:470px;padding-top:12px;color:#41424e;font-size:13px;font-family:Arial,Helvetica,sans-serif;line-height:18px">Virus-free.<a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" style="color:#4453ea" target="_blank" rel="noreferrer">www.avg.com</a></td></tr></tbody></table><a href="#m_5857095237910007045_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2" width="1" height="1" rel="noreferrer"></a></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Aug 7, 2023 at 8:37 PM David Wirken via Healeys <<a href="mailto:healeys@autox.team.net" target="_blank" rel="noreferrer">healeys@autox.team.net</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">Recently overhauled OD when testing the pressure, it measured 500 to 550 psi on the gauge.The book says it should be 470 to 490 PSI and drops about 80 PSI when engaged or disengaged and jumps back up to 470 PSI very quickly. <div>Question is " should I be concerned about the high numbers I am experiencing ?</div><div><br></div><div>THANKS for your input</div><div><br></div><div>Dave</div></div>
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