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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple style='word-wrap:break-word'><div class=WordSection1><p class=MsoNormal><span style='font-family:"Times New Roman",serif;mso-fareast-language:EN-US'>Alright…thanks for the replies so far. Still trying to get all my ducks in a row before I pick up the spanners.<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;mso-fareast-language:EN-US'>Next question,,,,solenoids. Do they fail 100% or can they wobble inbetween? Likewise, might give same symptoms. (Any straw worth clutching?)<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;mso-fareast-language:EN-US'>And again, how to bench test a solenoid?<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;mso-fareast-language:EN-US'>Simon<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Times New Roman",serif;mso-fareast-language:EN-US'><o:p> </o:p></span></p><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'>From:</span></b><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri",sans-serif'> Roger Grace <roggrace@telus.net> <br><b>Sent:</b> Monday, April 22, 2024 4:27 PM<br><b>To:</b> Michael Salter <michaelsalter@gmail.com><br><b>Cc:</b> Simon Lachlan <simon.lachlan@alexarevel.plus.com>; Healeys <healeys@autox.team.net><br><b>Subject:</b> Re: [Healeys] Overdrive pressure or clutch slip<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Agree - I had to re read your note to be sure which clutch you were talking about.<o:p></o:p></p></div><div><p class=MsoNormal>If you have the GB cover still on you, could disable the OD by disconnecting the solenoid - probably easier than removing the operating valve.<o:p></o:p></p></div><div><p class=MsoNormal>Regarding testing the OD relay, yes as MS says they usually fail positively and usually the operating coil.<o:p></o:p></p></div><div><p class=MsoNormal>To bench test:<o:p></o:p></p></div><div><p class=MsoNormal>With a 12V supply on W1 and W2 you should hear a clear click for ON and OFF<o:p></o:p></p></div><div><p class=MsoNormal>This would prove that the coil is OK<o:p></o:p></p></div><div><p class=MsoNormal>Contacts not quite as easy to verify.<o:p></o:p></p></div><div><p class=MsoNormal>Same test as above but an ohm meter on lowest scale across C1 and C2<o:p></o:p></p></div><div><p class=MsoNormal>An anologue meter is preferable and you can see if there is any dithering when the contacts close. Operating should be positive and crisp.<o:p></o:p></p></div><div><p class=MsoNormal>I would also be suspicious of the TS - they can have some weird failure modes and go out of adjustment,<o:p></o:p></p></div><div><p class=MsoNormal>rg<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div id="m_-7026411280735381914DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><p class=MsoNormal><o:p> </o:p></p><table class=MsoNormalTable border=1 cellspacing=3 cellpadding=0 style='border:none;border-top:solid #D3D4DE 1.0pt'><tr><td width=55 style='width:41.25pt;border:none;padding:9.75pt .75pt .75pt .75pt'><p class=MsoNormal><a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style='border:solid windowtext 1.0pt;padding:0cm;text-decoration:none'><img border=0 width=46 height=29 style='width:.4833in;height:.3in' id="Picture_x0020_1" src="cid:~WRD0000.jpg" alt="Image removed by sender."></span></a><o:p></o:p></p></td><td width=470 style='width:352.5pt;border:none;padding:9.0pt .75pt .75pt .75pt'><p class=MsoNormal style='line-height:13.5pt'><span style='font-size:10.0pt;font-family:"Arial",sans-serif;color:#41424E'>Virus-free.<a href="http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail" target="_blank"><span style='color:#4453EA'>www.avg.com</span></a><o:p></o:p></span></p></td></tr></table></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon, Apr 22, 2024 at 7:39<span style='font-family:"Arial",sans-serif'> </span>AM Michael Salter <<a href="mailto:michaelsalter@gmail.com" target="_blank">michaelsalter@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal><b><u>Correct diagnosis is 1/2 the repair!!</u></b><o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>First you need to confirm whether the clutch (on the flywheel) or the overdrive is causing the slippage. <o:p></o:p></p><div><p class=MsoNormal>To do this you ABSOLUTELY MUST disable the overdrive as a badly misadjuster overdrive operating valve can produce similar symptoms. <o:p></o:p></p></div><div><p class=MsoNormal>To do this I would remove the overdrive operating valve completely. (There are other ways but this is absolutely definitive).<o:p></o:p></p></div><div><p class=MsoNormal>Now drive the car up a long hill where you are amle to use full throttle at around 3000 RPM (maximum torque) for a few seconds. If it is the clutch (on the flywheel) that is causing the slippage these operating conditions. Test this a few times to be sure.<o:p></o:p></p></div><div><p class=MsoNormal>If there is no slippage we have confirmed that the overdrive clutch is at fault.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Step 1 completed. Please report results. <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon., Apr. 22, 2024, 9:03 a.m. Michael Salter, <<a href="mailto:michaelsalter@gmail.com" target="_blank">michaelsalter@gmail.com</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><p class=MsoNormal>In my experience relays are yes/no. No "maybe".<o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>On Mon., Apr. 22, 2024, 8:08 a.m. Simon Lachlan via Healeys, <<a href="mailto:healeys@autox.team.net" target="_blank">healeys@autox.team.net</a>> wrote:<o:p></o:p></p></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><p><span style='font-family:"Times New Roman",serif'>You may recall the very extended overdrive and clutch saga last year.</span> <span style='font-family:"Times New Roman",serif'>Long story short(ish)…</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>OD was slipping in and out depending on oil temperature.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Correctly diagnosed pressure. Checked with gauge.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Attempted rebuild…going only so far as</span> <span style='font-family:"Times New Roman",serif'>accumulator and related seals.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Stymied as could not get pump out. Turned out to have been “fixed” at some stage with some form of “chemical metal” which was coming loose/apart.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Took it up to OD Spares who fixed it..new housing etcetc</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Why not a new clutch I thought? Sensible while you’re in the area looking at a 30+ yr old item.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>New clutch…no good. Noisy, wouldn’t</span> <span style='font-family:"Times New Roman",serif'>engage/disengage/play at all.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Gearbox out again.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Refit clutch. Presumed I’d made some beginner’s mistake.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Refit gearbox…no good. Same</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Can’t recall whether I tried again. Lost count and enthusiasm by now.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Turned out that the new clutch kit was defective. (Thanks Mirek) (Genuine B&B from AHSpares).</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>New one did work.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Saga over until yesterday.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Same sort of symptoms…..</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>All’s well for first 10 or so miles. Then the dreaded slippage(?) starts. But it’s not quite the same. Reminds me more of a slipping clutch. (But NO smell)</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Symptoms continue if it’s in or out of OD.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Symptoms reduce at speed.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Yes, plenty of oil. Over the full mark. Looks very clean. Pretty sure it’s 40wt</span> <span style='font-family:"Times New Roman",serif'>non-detergent topped up with 30wt non-detergent. (Or vice-versa).</span> <span style='font-family:"Times New Roman",serif'>Am confident in state of the filter, magnets etc.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>No, I have not pressure tested it yet and yes, I dread restarting the whole bloody process all over again. I’m not sure I can face taking the box out again once, let alone multiple times.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>What I want and experience tells me I’m unlikely to get is a miracle cure!</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>One initial question…..do OD relays either work or not work? ie, can the relay hover between on and off</span> <span style='font-family:"Times New Roman",serif'>which might lead to the OD coming in and out? I think that could happen if the switch is off but the unit still hasn’t got the message to disengage from the bulkhead switch.</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>And a supplementary….how</span> <span style='font-family:"Times New Roman",serif'>do I bench test</span> <span style='font-family:"Times New Roman",serif'>the relay?</span><o:p></o:p></p><p><span style='font-family:"Times New Roman",serif'>Simon</span><o:p></o:p></p></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>Support Team.Net <a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br><br>Archive: <a href="http://www.team.net/pipermail/healeys" target="_blank">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive/healeys" target="_blank">http://autox.team.net/archive/healeys</a><br><br><a href="mailto:Healeys@autox.team.net" target="_blank">Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys" target="_blank">http://autox.team.net/mailman/listinfo/healeys</a><br><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/michaelsalter@gmailcom" target="_blank">http://autox.team.net/mailman/options/healeys/michaelsalter@gmail.com</a><o:p></o:p></p></blockquote></div></blockquote></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>Support Team.Net <a href="http://www.team.net/donate.html" target="_blank">http://www.team.net/donate.html</a><br>Suggested annual donation $12.75<br><br>Archive: <a href="http://www.team.net/pipermail/healeys" target="_blank">http://www.team.net/pipermail/healeys</a> <a href="http://autox.team.net/archive/healeys" target="_blank">http://autox.team.net/archive/healeys</a><br><br><a href="mailto:Healeys@autox.team.net" target="_blank">Healeys@autox.team.net</a><br><a href="http://autox.team.net/mailman/listinfo/healeys" target="_blank">http://autox.team.net/mailman/listinfo/healeys</a><br><br>Unsubscribe/Manage: <a href="http://autox.team.net/mailman/options/healeys/roggrace@telus.net" target="_blank">http://autox.team.net/mailman/options/healeys/roggrace@telus.net</a><o:p></o:p></p></blockquote></div></div></body></html>