<html><body>UH OH! that is your slugglish issue! I would drain that oil (for rear ends) and replace it with the 30W ND. That rear end oil foams in the annullus and plays hell with the spring pressure, passage thru the system and fast clutch engagement. Check it out on the web...that heavy fish oil is not for British Trannys. If you put the heavy stuff in to stop leaks, that's not the answer; neither is synthetic-too thin.The gearbox and OD were designed to run on conventional oil...ancient as it may seem. Yes, a small air compressor is enough of a blast to clear passages.You will probably hear the clutch pistons engage if air is put on the valve opening. If you remove the spring, ball, and plunger with a magnet, you can then extract the valve and run a small wire down the middle to clean it-then a blast of air-be careful to not get any lint from a shop rag into the mix. Upon rebuilding a unit it is "suggested" to carefully enlarge the valve hole to 1mm (but cleanliness is probably best solution). The new pistons sold today, and made by Overdrive Spares, (old Laycock group) are equipped with rubber o-rings. Good that you replaced the tire bushings! Hank<br><br><div class="reply-new-signature"></div><p>-----------------------------------------</p>From: "Warren" <flyhihealey@gmail.com><br>To: "gradea1@charter.net"<br>Cc: "healeys@autox.team.net"<br>Sent: Tuesday April 21 2020 4:48:59PM<br>Subject: RE: RE: [Healeys] Drove the Healey today?!<br><br><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><meta name="Generator" content="Microsoft Word 15 (filtered medium)"><style><!--
/* Font Definitions */
@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;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><div class="WordSection1"><p class="MsoNormal">Yes thanks for the tip. The problem is slow to engage. It was suggested maybe accumulator O ring. Just did pull the check valve and all. Did seem like dirty oil. I cleaned it all up. I’m already committed to extracting the accumulator and piston but wanted to replace all the tranny mounts and bushings which I did. Mounts were pretty squished and cracked. Bushings(radiator saver)were fairly solid but were replaced. They were the original. Cleaning and degreasing as I go along.</p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"> If(?)it is the O ring or rings, I guess they are metal on the piston, I might just spring for a uprated from Dennis Welch or AH spares has a combo housing/piston both which have rubber O rings. </p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal"> Working my way to the extraction part. I want to use forced air through the operating valve but I only have a small air compressor for tires. Some kind of extraction tool would be helpful. (18G182) I have always changed tranny oil regularly. Used ND 30 early on. Using MT 90 now for many years. </p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Any and all suggestions appreciated.</p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">WD 67 BJ8</p><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10</p><p class="MsoNormal"><o:p> </o:p></p><div style="mso-element:para-border-div;border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in"><p class="MsoNormal" style="border:none;padding:0in"><b>From: </b><a href="mailto:gradea1@charter.net">gradea1@charter.net</a><br><b>Sent: </b>Tuesday, April 21, 2020 6:14 PM<br><b>To: </b><a href="mailto:flyhihealey@gmail.com">Warren</a><br><b>Cc: </b><a href="mailto:healeys@autox.team.net">healeys@autox.team.net</a><br><b>Subject: </b>RE: [Healeys] Drove the Healey today?!</p></div><p class="MsoNormal"><o:p> </o:p></p><p class="MsoNormal" style="margin-bottom:12.0pt">Warren- Don't know the OD problem you are experiencing, but suggest before you tear into it, undo and clean the check valve and ball on the top right side (if you haven't already done so). One small spot of dirt lodged in the valve drilling can kill the hydraulics and make it seem like a bigger issue. It may be worn parts, but, if not, this is an easy first test. If it is dirt; good idea to change oil and add fresh SAE 30W non detergent oil to the unit. Regards, Hank, healeyhelper.com<o:p></o:p></p><p>-----------------------------------------</p><p class="MsoNormal" style="margin-bottom:12.0pt">From: "Warren" <br>To: "healeys@autox.team.net"<br>Cc: <br>Sent: Tuesday April 21 2020 2:36:17PM<br>Subject: [Healeys] Drove the Healey today?!<o:p></o:p></p><p class="MsoNormal"> <o:p></o:p></p><p class="MsoNormal"> <o:p></o:p></p><p class="MsoNormal"><a href="https://www.youtube.com/watch?v=J5L7PfKtq3s&feature=youtu.be&fbclid=IwAR15n6aDLNtzuEWNq3O09-Nh74dkR1V_nhntcmLwq0EuYzrBINYiMySW_qc" target="_blank"></a><a href="https://www.youtube.com/watch?v=J5L7PfKtq3s&feature=youtu.be&fbclid=IwAR15n6aDLNtzuEWNq3O09-Nh74dkR1V_nhntcmLwq0EuYzrBINYiMySW_qc" target="_blank">https://www.youtube.com/watch?v=J5L7PfKtq3s&feature=youtu.be&fbclid=IwAR15n6aDLNtzuEWNq3O09-Nh74dkR1V_nhntcmLwq0EuYzrBINYiMySW_qc</a><o:p></o:p></p><p class="MsoNormal">Sent from <a href="https://go.microsoft.com/fwlink/?LinkId=550986">Mail</a> for Windows 10<o:p></o:p></p><p class="MsoNormal"> <o:p></o:p></p><p class="MsoNormal">I should really get back to working on that accumulator OD problem now?<o:p></o:p></p><p class="MsoNormal"> <o:p></o:p></p><p class="MsoNormal">WD 67 BJ8<o:p></o:p></p><p class="MsoNormal"><o:p> </o:p></p></div></flyhihealey@gmail.com></body></html>