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--></style></head><body lang=EN-US link=blue vlink="#954F72"><div class=WordSection1><p class=MsoNormal>This is my understanding of Redline MT 90 <u>transmission oil</u>. Not for differentials. I will return to ND 30 if this is a problem in my OD? My Healey(original owner) has over 190,000 miles. Tranny and OD are untouched until this year. Not really surprised with some wear. MT 90 has smoothed shifting but leaks a lot! </p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>WD 67 BJ8</p><p class=MsoNormal><o:p> </o:p></p><div><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:11.25pt;margin-left:0in;background:#ECECEB'><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>This is a great upgrade for your manual trans! This is one of the easiest "mods" to do for your trans. Drain old fluid, pour this in. The trans will shift quicker, feel less notchy, less wear on its components, etc!<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Appropriate coefficient of friction for most manual transmission synchronizers (other's synthetic gear oils are often too slippery for proper synchro engagement)<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Red Line offers lubricants to pinpoint nearly every transmission application<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>MT-90 is not for use in differentials with hypoid gears<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Excellent gear and synchro protection, balanced slipperiness for easier shifting in cold climates<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Excellent for high- and low-mile transmissions<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Compatible with petroleums and other synthetics<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>75W90 GL-4 gear oil (similar to SAE 5W40/10W40 engine oil viscosity)<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Offers quicker shifts, perfect synchronizer coefficient of friction<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Safe for brass synchros, as it lacks the reactive sulfurs found in most GL-5 oils that cause damage<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>High performance gear protection and longer synchro life<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Eliminates notchy shifting, even when cold<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Satisfies the gear oil viscosity requirements of 75W, 80W and motor oil viscosities of SAE 40, 10W40, and 15W40<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;margin-bottom:3.0pt;margin-left:15.0pt;text-indent:-.25in;mso-list:l0 level1 lfo1;background:#ECECEB'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol;color:#313131'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Recommended for GL-1, GL-3, and GL-4 applications, as well as where most special synchromesh fluids are specified<br style='box-sizing: border-box'><br><o:p></o:p></span></p><p style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:11.25pt;margin-left:15.0pt;background:#ECECEB'><span style='font-size:13.5pt;font-family:"Arial",sans-serif;color:#313131'>Most manual transmissions take a little over 2 quarts of fluid.<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></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>Wednesday, April 22, 2020 1:10 AM<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: RE: [Healeys] Drove the Healey today?!</p></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>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<o:p></o:p></p><p>-----------------------------------------</p><p class=MsoNormal style='margin-bottom:12.0pt'>From: "Warren" <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?!<o:p></o:p></p><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.<o:p></o:p></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. <o:p></o:p></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. <o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Any and all suggestions appreciated.<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><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><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><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?!<o:p></o:p></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">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><p class=MsoNormal><o:p> </o:p></p></div></body></html>